/*!
 * Chart.js
 * http://chartjs.org/
 * Version: 2.7.2
 *
 * Copyright 2018 Chart.js Contributors
 * Released under the MIT license
 * https://github.com/chartjs/Chart.js/blob/master/LICENSE.md
 */
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Chart = f()}})(function(){var define,module,exports;return (function(){function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s}return e})()({1:[function(require,module,exports){
        /* MIT license */
        var colorNames = require(5);

        module.exports = {
            getRgba: getRgba,
            getHsla: getHsla,
            getRgb: getRgb,
            getHsl: getHsl,
            getHwb: getHwb,
            getAlpha: getAlpha,

            hexString: hexString,
            rgbString: rgbString,
            rgbaString: rgbaString,
            percentString: percentString,
            percentaString: percentaString,
            hslString: hslString,
            hslaString: hslaString,
            hwbString: hwbString,
            keyword: keyword
        }

        function getRgba(string) {
            if (!string) {
                return;
            }
            var abbr =  /^#([a-fA-F0-9]{3})$/i,
                hex =  /^#([a-fA-F0-9]{6})$/i,
                rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
                per = /^rgba?\(\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
                keyword = /(\w+)/;

            var rgb = [0, 0, 0],
                a = 1,
                match = string.match(abbr);
            if (match) {
                match = match[1];
                for (var i = 0; i < rgb.length; i++) {
                    rgb[i] = parseInt(match[i] + match[i], 16);
                }
            }
            else if (match = string.match(hex)) {
                match = match[1];
                for (var i = 0; i < rgb.length; i++) {
                    rgb[i] = parseInt(match.slice(i * 2, i * 2 + 2), 16);
                }
            }
            else if (match = string.match(rgba)) {
                for (var i = 0; i < rgb.length; i++) {
                    rgb[i] = parseInt(match[i + 1]);
                }
                a = parseFloat(match[4]);
            }
            else if (match = string.match(per)) {
                for (var i = 0; i < rgb.length; i++) {
                    rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55);
                }
                a = parseFloat(match[4]);
            }
            else if (match = string.match(keyword)) {
                if (match[1] == "transparent") {
                    return [0, 0, 0, 0];
                }
                rgb = colorNames[match[1]];
                if (!rgb) {
                    return;
                }
            }

            for (var i = 0; i < rgb.length; i++) {
                rgb[i] = scale(rgb[i], 0, 255);
            }
            if (!a && a != 0) {
                a = 1;
            }
            else {
                a = scale(a, 0, 1);
            }
            rgb[3] = a;
            return rgb;
        }

        function getHsla(string) {
            if (!string) {
                return;
            }
            var hsl = /^hsla?\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
            var match = string.match(hsl);
            if (match) {
                var alpha = parseFloat(match[4]);
                var h = scale(parseInt(match[1]), 0, 360),
                    s = scale(parseFloat(match[2]), 0, 100),
                    l = scale(parseFloat(match[3]), 0, 100),
                    a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
                return [h, s, l, a];
            }
        }

        function getHwb(string) {
            if (!string) {
                return;
            }
            var hwb = /^hwb\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
            var match = string.match(hwb);
            if (match) {
                var alpha = parseFloat(match[4]);
                var h = scale(parseInt(match[1]), 0, 360),
                    w = scale(parseFloat(match[2]), 0, 100),
                    b = scale(parseFloat(match[3]), 0, 100),
                    a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
                return [h, w, b, a];
            }
        }

        function getRgb(string) {
            var rgba = getRgba(string);
            return rgba && rgba.slice(0, 3);
        }

        function getHsl(string) {
            var hsla = getHsla(string);
            return hsla && hsla.slice(0, 3);
        }

        function getAlpha(string) {
            var vals = getRgba(string);
            if (vals) {
                return vals[3];
            }
            else if (vals = getHsla(string)) {
                return vals[3];
            }
            else if (vals = getHwb(string)) {
                return vals[3];
            }
        }

// generators
        function hexString(rgb) {
            return "#" + hexDouble(rgb[0]) + hexDouble(rgb[1])
                + hexDouble(rgb[2]);
        }

        function rgbString(rgba, alpha) {
            if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
                return rgbaString(rgba, alpha);
            }
            return "rgb(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + ")";
        }

        function rgbaString(rgba, alpha) {
            if (alpha === undefined) {
                alpha = (rgba[3] !== undefined ? rgba[3] : 1);
            }
            return "rgba(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2]
                + ", " + alpha + ")";
        }

        function percentString(rgba, alpha) {
            if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
                return percentaString(rgba, alpha);
            }
            var r = Math.round(rgba[0]/255 * 100),
                g = Math.round(rgba[1]/255 * 100),
                b = Math.round(rgba[2]/255 * 100);

            return "rgb(" + r + "%, " + g + "%, " + b + "%)";
        }

        function percentaString(rgba, alpha) {
            var r = Math.round(rgba[0]/255 * 100),
                g = Math.round(rgba[1]/255 * 100),
                b = Math.round(rgba[2]/255 * 100);
            return "rgba(" + r + "%, " + g + "%, " + b + "%, " + (alpha || rgba[3] || 1) + ")";
        }

        function hslString(hsla, alpha) {
            if (alpha < 1 || (hsla[3] && hsla[3] < 1)) {
                return hslaString(hsla, alpha);
            }
            return "hsl(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%)";
        }

        function hslaString(hsla, alpha) {
            if (alpha === undefined) {
                alpha = (hsla[3] !== undefined ? hsla[3] : 1);
            }
            return "hsla(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%, "
                + alpha + ")";
        }

// hwb is a bit different than rgb(a) & hsl(a) since there is no alpha specific syntax
// (hwb have alpha optional & 1 is default value)
        function hwbString(hwb, alpha) {
            if (alpha === undefined) {
                alpha = (hwb[3] !== undefined ? hwb[3] : 1);
            }
            return "hwb(" + hwb[0] + ", " + hwb[1] + "%, " + hwb[2] + "%"
                + (alpha !== undefined && alpha !== 1 ? ", " + alpha : "") + ")";
        }

        function keyword(rgb) {
            return reverseNames[rgb.slice(0, 3)];
        }

// helpers
        function scale(num, min, max) {
            return Math.min(Math.max(min, num), max);
        }

        function hexDouble(num) {
            var str = num.toString(16).toUpperCase();
            return (str.length < 2) ? "0" + str : str;
        }


//create a list of reverse color names
        var reverseNames = {};
        for (var name in colorNames) {
            reverseNames[colorNames[name]] = name;
        }

    },{"5":5}],2:[function(require,module,exports){
        /* MIT license */
        var convert = require(4);
        var string = require(1);

        var Color = function (obj) {
            if (obj instanceof Color) {
                return obj;
            }
            if (!(this instanceof Color)) {
                return new Color(obj);
            }

            this.valid = false;
            this.values = {
                rgb: [0, 0, 0],
                hsl: [0, 0, 0],
                hsv: [0, 0, 0],
                hwb: [0, 0, 0],
                cmyk: [0, 0, 0, 0],
                alpha: 1
            };

            // parse Color() argument
            var vals;
            if (typeof obj === 'string') {
                vals = string.getRgba(obj);
                if (vals) {
                    this.setValues('rgb', vals);
                } else if (vals = string.getHsla(obj)) {
                    this.setValues('hsl', vals);
                } else if (vals = string.getHwb(obj)) {
                    this.setValues('hwb', vals);
                }
            } else if (typeof obj === 'object') {
                vals = obj;
                if (vals.r !== undefined || vals.red !== undefined) {
                    this.setValues('rgb', vals);
                } else if (vals.l !== undefined || vals.lightness !== undefined) {
                    this.setValues('hsl', vals);
                } else if (vals.v !== undefined || vals.value !== undefined) {
                    this.setValues('hsv', vals);
                } else if (vals.w !== undefined || vals.whiteness !== undefined) {
                    this.setValues('hwb', vals);
                } else if (vals.c !== undefined || vals.cyan !== undefined) {
                    this.setValues('cmyk', vals);
                }
            }
        };

        Color.prototype = {
            isValid: function () {
                return this.valid;
            },
            rgb: function () {
                return this.setSpace('rgb', arguments);
            },
            hsl: function () {
                return this.setSpace('hsl', arguments);
            },
            hsv: function () {
                return this.setSpace('hsv', arguments);
            },
            hwb: function () {
                return this.setSpace('hwb', arguments);
            },
            cmyk: function () {
                return this.setSpace('cmyk', arguments);
            },

            rgbArray: function () {
                return this.values.rgb;
            },
            hslArray: function () {
                return this.values.hsl;
            },
            hsvArray: function () {
                return this.values.hsv;
            },
            hwbArray: function () {
                var values = this.values;
                if (values.alpha !== 1) {
                    return values.hwb.concat([values.alpha]);
                }
                return values.hwb;
            },
            cmykArray: function () {
                return this.values.cmyk;
            },
            rgbaArray: function () {
                var values = this.values;
                return values.rgb.concat([values.alpha]);
            },
            hslaArray: function () {
                var values = this.values;
                return values.hsl.concat([values.alpha]);
            },
            alpha: function (val) {
                if (val === undefined) {
                    return this.values.alpha;
                }
                this.setValues('alpha', val);
                return this;
            },

            red: function (val) {
                return this.setChannel('rgb', 0, val);
            },
            green: function (val) {
                return this.setChannel('rgb', 1, val);
            },
            blue: function (val) {
                return this.setChannel('rgb', 2, val);
            },
            hue: function (val) {
                if (val) {
                    val %= 360;
                    val = val < 0 ? 360 + val : val;
                }
                return this.setChannel('hsl', 0, val);
            },
            saturation: function (val) {
                return this.setChannel('hsl', 1, val);
            },
            lightness: function (val) {
                return this.setChannel('hsl', 2, val);
            },
            saturationv: function (val) {
                return this.setChannel('hsv', 1, val);
            },
            whiteness: function (val) {
                return this.setChannel('hwb', 1, val);
            },
            blackness: function (val) {
                return this.setChannel('hwb', 2, val);
            },
            value: function (val) {
                return this.setChannel('hsv', 2, val);
            },
            cyan: function (val) {
                return this.setChannel('cmyk', 0, val);
            },
            magenta: function (val) {
                return this.setChannel('cmyk', 1, val);
            },
            yellow: function (val) {
                return this.setChannel('cmyk', 2, val);
            },
            black: function (val) {
                return this.setChannel('cmyk', 3, val);
            },

            hexString: function () {
                return string.hexString(this.values.rgb);
            },
            rgbString: function () {
                return string.rgbString(this.values.rgb, this.values.alpha);
            },
            rgbaString: function () {
                return string.rgbaString(this.values.rgb, this.values.alpha);
            },
            percentString: function () {
                return string.percentString(this.values.rgb, this.values.alpha);
            },
            hslString: function () {
                return string.hslString(this.values.hsl, this.values.alpha);
            },
            hslaString: function () {
                return string.hslaString(this.values.hsl, this.values.alpha);
            },
            hwbString: function () {
                return string.hwbString(this.values.hwb, this.values.alpha);
            },
            keyword: function () {
                return string.keyword(this.values.rgb, this.values.alpha);
            },

            rgbNumber: function () {
                var rgb = this.values.rgb;
                return (rgb[0] << 16) | (rgb[1] << 8) | rgb[2];
            },

            luminosity: function () {
                // http://www.w3.org/TR/WCAG20/#relativeluminancedef
                var rgb = this.values.rgb;
                var lum = [];
                for (var i = 0; i < rgb.length; i++) {
                    var chan = rgb[i] / 255;
                    lum[i] = (chan <= 0.03928) ? chan / 12.92 : Math.pow(((chan + 0.055) / 1.055), 2.4);
                }
                return 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2];
            },

            contrast: function (color2) {
                // http://www.w3.org/TR/WCAG20/#contrast-ratiodef
                var lum1 = this.luminosity();
                var lum2 = color2.luminosity();
                if (lum1 > lum2) {
                    return (lum1 + 0.05) / (lum2 + 0.05);
                }
                return (lum2 + 0.05) / (lum1 + 0.05);
            },

            level: function (color2) {
                var contrastRatio = this.contrast(color2);
                if (contrastRatio >= 7.1) {
                    return 'AAA';
                }

                return (contrastRatio >= 4.5) ? 'AA' : '';
            },

            dark: function () {
                // YIQ equation from http://24ways.org/2010/calculating-color-contrast
                var rgb = this.values.rgb;
                var yiq = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000;
                return yiq < 128;
            },

            light: function () {
                return !this.dark();
            },

            negate: function () {
                var rgb = [];
                for (var i = 0; i < 3; i++) {
                    rgb[i] = 255 - this.values.rgb[i];
                }
                this.setValues('rgb', rgb);
                return this;
            },

            lighten: function (ratio) {
                var hsl = this.values.hsl;
                hsl[2] += hsl[2] * ratio;
                this.setValues('hsl', hsl);
                return this;
            },

            darken: function (ratio) {
                var hsl = this.values.hsl;
                hsl[2] -= hsl[2] * ratio;
                this.setValues('hsl', hsl);
                return this;
            },

            saturate: function (ratio) {
                var hsl = this.values.hsl;
                hsl[1] += hsl[1] * ratio;
                this.setValues('hsl', hsl);
                return this;
            },

            desaturate: function (ratio) {
                var hsl = this.values.hsl;
                hsl[1] -= hsl[1] * ratio;
                this.setValues('hsl', hsl);
                return this;
            },

            whiten: function (ratio) {
                var hwb = this.values.hwb;
                hwb[1] += hwb[1] * ratio;
                this.setValues('hwb', hwb);
                return this;
            },

            blacken: function (ratio) {
                var hwb = this.values.hwb;
                hwb[2] += hwb[2] * ratio;
                this.setValues('hwb', hwb);
                return this;
            },

            greyscale: function () {
                var rgb = this.values.rgb;
                // http://en.wikipedia.org/wiki/Grayscale#Converting_color_to_grayscale
                var val = rgb[0] * 0.3 + rgb[1] * 0.59 + rgb[2] * 0.11;
                this.setValues('rgb', [val, val, val]);
                return this;
            },

            clearer: function (ratio) {
                var alpha = this.values.alpha;
                this.setValues('alpha', alpha - (alpha * ratio));
                return this;
            },

            opaquer: function (ratio) {
                var alpha = this.values.alpha;
                this.setValues('alpha', alpha + (alpha * ratio));
                return this;
            },

            rotate: function (degrees) {
                var hsl = this.values.hsl;
                var hue = (hsl[0] + degrees) % 360;
                hsl[0] = hue < 0 ? 360 + hue : hue;
                this.setValues('hsl', hsl);
                return this;
            },

            /**
             * Ported from sass implementation in C
             * https://github.com/sass/libsass/blob/0e6b4a2850092356aa3ece07c6b249f0221caced/functions.cpp#L209
             */
            mix: function (mixinColor, weight) {
                var color1 = this;
                var color2 = mixinColor;
                var p = weight === undefined ? 0.5 : weight;

                var w = 2 * p - 1;
                var a = color1.alpha() - color2.alpha();

                var w1 = (((w * a === -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
                var w2 = 1 - w1;

                return this
                    .rgb(
                        w1 * color1.red() + w2 * color2.red(),
                        w1 * color1.green() + w2 * color2.green(),
                        w1 * color1.blue() + w2 * color2.blue()
                    )
                    .alpha(color1.alpha() * p + color2.alpha() * (1 - p));
            },

            toJSON: function () {
                return this.rgb();
            },

            clone: function () {
                // NOTE(SB): using node-clone creates a dependency to Buffer when using browserify,
                // making the final build way to big to embed in Chart.js. So let's do it manually,
                // assuming that values to clone are 1 dimension arrays containing only numbers,
                // except 'alpha' which is a number.
                var result = new Color();
                var source = this.values;
                var target = result.values;
                var value, type;

                for (var prop in source) {
                    if (source.hasOwnProperty(prop)) {
                        value = source[prop];
                        type = ({}).toString.call(value);
                        if (type === '[object Array]') {
                            target[prop] = value.slice(0);
                        } else if (type === '[object Number]') {
                            target[prop] = value;
                        } else {
                            console.error('unexpected color value:', value);
                        }
                    }
                }

                return result;
            }
        };

        Color.prototype.spaces = {
            rgb: ['red', 'green', 'blue'],
            hsl: ['hue', 'saturation', 'lightness'],
            hsv: ['hue', 'saturation', 'value'],
            hwb: ['hue', 'whiteness', 'blackness'],
            cmyk: ['cyan', 'magenta', 'yellow', 'black']
        };

        Color.prototype.maxes = {
            rgb: [255, 255, 255],
            hsl: [360, 100, 100],
            hsv: [360, 100, 100],
            hwb: [360, 100, 100],
            cmyk: [100, 100, 100, 100]
        };

        Color.prototype.getValues = function (space) {
            var values = this.values;
            var vals = {};

            for (var i = 0; i < space.length; i++) {
                vals[space.charAt(i)] = values[space][i];
            }

            if (values.alpha !== 1) {
                vals.a = values.alpha;
            }

            // {r: 255, g: 255, b: 255, a: 0.4}
            return vals;
        };

        Color.prototype.setValues = function (space, vals) {
            var values = this.values;
            var spaces = this.spaces;
            var maxes = this.maxes;
            var alpha = 1;
            var i;

            this.valid = true;

            if (space === 'alpha') {
                alpha = vals;
            } else if (vals.length) {
                // [10, 10, 10]
                values[space] = vals.slice(0, space.length);
                alpha = vals[space.length];
            } else if (vals[space.charAt(0)] !== undefined) {
                // {r: 10, g: 10, b: 10}
                for (i = 0; i < space.length; i++) {
                    values[space][i] = vals[space.charAt(i)];
                }

                alpha = vals.a;
            } else if (vals[spaces[space][0]] !== undefined) {
                // {red: 10, green: 10, blue: 10}
                var chans = spaces[space];

                for (i = 0; i < space.length; i++) {
                    values[space][i] = vals[chans[i]];
                }

                alpha = vals.alpha;
            }

            values.alpha = Math.max(0, Math.min(1, (alpha === undefined ? values.alpha : alpha)));

            if (space === 'alpha') {
                return false;
            }

            var capped;

            // cap values of the space prior converting all values
            for (i = 0; i < space.length; i++) {
                capped = Math.max(0, Math.min(maxes[space][i], values[space][i]));
                values[space][i] = Math.round(capped);
            }

            // convert to all the other color spaces
            for (var sname in spaces) {
                if (sname !== space) {
                    values[sname] = convert[space][sname](values[space]);
                }
            }

            return true;
        };

        Color.prototype.setSpace = function (space, args) {
            var vals = args[0];

            if (vals === undefined) {
                // color.rgb()
                return this.getValues(space);
            }

            // color.rgb(10, 10, 10)
            if (typeof vals === 'number') {
                vals = Array.prototype.slice.call(args);
            }

            this.setValues(space, vals);
            return this;
        };

        Color.prototype.setChannel = function (space, index, val) {
            var svalues = this.values[space];
            if (val === undefined) {
                // color.red()
                return svalues[index];
            } else if (val === svalues[index]) {
                // color.red(color.red())
                return this;
            }

            // color.red(100)
            svalues[index] = val;
            this.setValues(space, svalues);

            return this;
        };

        if (typeof window !== 'undefined') {
            window.Color = Color;
        }

        module.exports = Color;

    },{"1":1,"4":4}],3:[function(require,module,exports){
        /* MIT license */

        module.exports = {
            rgb2hsl: rgb2hsl,
            rgb2hsv: rgb2hsv,
            rgb2hwb: rgb2hwb,
            rgb2cmyk: rgb2cmyk,
            rgb2keyword: rgb2keyword,
            rgb2xyz: rgb2xyz,
            rgb2lab: rgb2lab,
            rgb2lch: rgb2lch,

            hsl2rgb: hsl2rgb,
            hsl2hsv: hsl2hsv,
            hsl2hwb: hsl2hwb,
            hsl2cmyk: hsl2cmyk,
            hsl2keyword: hsl2keyword,

            hsv2rgb: hsv2rgb,
            hsv2hsl: hsv2hsl,
            hsv2hwb: hsv2hwb,
            hsv2cmyk: hsv2cmyk,
            hsv2keyword: hsv2keyword,

            hwb2rgb: hwb2rgb,
            hwb2hsl: hwb2hsl,
            hwb2hsv: hwb2hsv,
            hwb2cmyk: hwb2cmyk,
            hwb2keyword: hwb2keyword,

            cmyk2rgb: cmyk2rgb,
            cmyk2hsl: cmyk2hsl,
            cmyk2hsv: cmyk2hsv,
            cmyk2hwb: cmyk2hwb,
            cmyk2keyword: cmyk2keyword,

            keyword2rgb: keyword2rgb,
            keyword2hsl: keyword2hsl,
            keyword2hsv: keyword2hsv,
            keyword2hwb: keyword2hwb,
            keyword2cmyk: keyword2cmyk,
            keyword2lab: keyword2lab,
            keyword2xyz: keyword2xyz,

            xyz2rgb: xyz2rgb,
            xyz2lab: xyz2lab,
            xyz2lch: xyz2lch,

            lab2xyz: lab2xyz,
            lab2rgb: lab2rgb,
            lab2lch: lab2lch,

            lch2lab: lch2lab,
            lch2xyz: lch2xyz,
            lch2rgb: lch2rgb
        }


        function rgb2hsl(rgb) {
            var r = rgb[0]/255,
                g = rgb[1]/255,
                b = rgb[2]/255,
                min = Math.min(r, g, b),
                max = Math.max(r, g, b),
                delta = max - min,
                h, s, l;

            if (max == min)
                h = 0;
            else if (r == max)
                h = (g - b) / delta;
            else if (g == max)
                h = 2 + (b - r) / delta;
            else if (b == max)
                h = 4 + (r - g)/ delta;

            h = Math.min(h * 60, 360);

            if (h < 0)
                h += 360;

            l = (min + max) / 2;

            if (max == min)
                s = 0;
            else if (l <= 0.5)
                s = delta / (max + min);
            else
                s = delta / (2 - max - min);

            return [h, s * 100, l * 100];
        }

        function rgb2hsv(rgb) {
            var r = rgb[0],
                g = rgb[1],
                b = rgb[2],
                min = Math.min(r, g, b),
                max = Math.max(r, g, b),
                delta = max - min,
                h, s, v;

            if (max == 0)
                s = 0;
            else
                s = (delta/max * 1000)/10;

            if (max == min)
                h = 0;
            else if (r == max)
                h = (g - b) / delta;
            else if (g == max)
                h = 2 + (b - r) / delta;
            else if (b == max)
                h = 4 + (r - g) / delta;

            h = Math.min(h * 60, 360);

            if (h < 0)
                h += 360;

            v = ((max / 255) * 1000) / 10;

            return [h, s, v];
        }

        function rgb2hwb(rgb) {
            var r = rgb[0],
                g = rgb[1],
                b = rgb[2],
                h = rgb2hsl(rgb)[0],
                w = 1/255 * Math.min(r, Math.min(g, b)),
                b = 1 - 1/255 * Math.max(r, Math.max(g, b));

            return [h, w * 100, b * 100];
        }

        function rgb2cmyk(rgb) {
            var r = rgb[0] / 255,
                g = rgb[1] / 255,
                b = rgb[2] / 255,
                c, m, y, k;

            k = Math.min(1 - r, 1 - g, 1 - b);
            c = (1 - r - k) / (1 - k) || 0;
            m = (1 - g - k) / (1 - k) || 0;
            y = (1 - b - k) / (1 - k) || 0;
            return [c * 100, m * 100, y * 100, k * 100];
        }

        function rgb2keyword(rgb) {
            return reverseKeywords[JSON.stringify(rgb)];
        }

        function rgb2xyz(rgb) {
            var r = rgb[0] / 255,
                g = rgb[1] / 255,
                b = rgb[2] / 255;

            // assume sRGB
            r = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92);
            g = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92);
            b = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92);

            var x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);
            var y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);
            var z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);

            return [x * 100, y *100, z * 100];
        }

        function rgb2lab(rgb) {
            var xyz = rgb2xyz(rgb),
                x = xyz[0],
                y = xyz[1],
                z = xyz[2],
                l, a, b;

            x /= 95.047;
            y /= 100;
            z /= 108.883;

            x = x > 0.008856 ? Math.pow(x, 1/3) : (7.787 * x) + (16 / 116);
            y = y > 0.008856 ? Math.pow(y, 1/3) : (7.787 * y) + (16 / 116);
            z = z > 0.008856 ? Math.pow(z, 1/3) : (7.787 * z) + (16 / 116);

            l = (116 * y) - 16;
            a = 500 * (x - y);
            b = 200 * (y - z);

            return [l, a, b];
        }

        function rgb2lch(args) {
            return lab2lch(rgb2lab(args));
        }

        function hsl2rgb(hsl) {
            var h = hsl[0] / 360,
                s = hsl[1] / 100,
                l = hsl[2] / 100,
                t1, t2, t3, rgb, val;

            if (s == 0) {
                val = l * 255;
                return [val, val, val];
            }

            if (l < 0.5)
                t2 = l * (1 + s);
            else
                t2 = l + s - l * s;
            t1 = 2 * l - t2;

            rgb = [0, 0, 0];
            for (var i = 0; i < 3; i++) {
                t3 = h + 1 / 3 * - (i - 1);
                t3 < 0 && t3++;
                t3 > 1 && t3--;

                if (6 * t3 < 1)
                    val = t1 + (t2 - t1) * 6 * t3;
                else if (2 * t3 < 1)
                    val = t2;
                else if (3 * t3 < 2)
                    val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
                else
                    val = t1;

                rgb[i] = val * 255;
            }

            return rgb;
        }

        function hsl2hsv(hsl) {
            var h = hsl[0],
                s = hsl[1] / 100,
                l = hsl[2] / 100,
                sv, v;

            if(l === 0) {
                // no need to do calc on black
                // also avoids divide by 0 error
                return [0, 0, 0];
            }

            l *= 2;
            s *= (l <= 1) ? l : 2 - l;
            v = (l + s) / 2;
            sv = (2 * s) / (l + s);
            return [h, sv * 100, v * 100];
        }

        function hsl2hwb(args) {
            return rgb2hwb(hsl2rgb(args));
        }

        function hsl2cmyk(args) {
            return rgb2cmyk(hsl2rgb(args));
        }

        function hsl2keyword(args) {
            return rgb2keyword(hsl2rgb(args));
        }


        function hsv2rgb(hsv) {
            var h = hsv[0] / 60,
                s = hsv[1] / 100,
                v = hsv[2] / 100,
                hi = Math.floor(h) % 6;

            var f = h - Math.floor(h),
                p = 255 * v * (1 - s),
                q = 255 * v * (1 - (s * f)),
                t = 255 * v * (1 - (s * (1 - f))),
                v = 255 * v;

            switch(hi) {
                case 0:
                    return [v, t, p];
                case 1:
                    return [q, v, p];
                case 2:
                    return [p, v, t];
                case 3:
                    return [p, q, v];
                case 4:
                    return [t, p, v];
                case 5:
                    return [v, p, q];
            }
        }

        function hsv2hsl(hsv) {
            var h = hsv[0],
                s = hsv[1] / 100,
                v = hsv[2] / 100,
                sl, l;

            l = (2 - s) * v;
            sl = s * v;
            sl /= (l <= 1) ? l : 2 - l;
            sl = sl || 0;
            l /= 2;
            return [h, sl * 100, l * 100];
        }

        function hsv2hwb(args) {
            return rgb2hwb(hsv2rgb(args))
        }

        function hsv2cmyk(args) {
            return rgb2cmyk(hsv2rgb(args));
        }

        function hsv2keyword(args) {
            return rgb2keyword(hsv2rgb(args));
        }

// http://dev.w3.org/csswg/css-color/#hwb-to-rgb
        function hwb2rgb(hwb) {
            var h = hwb[0] / 360,
                wh = hwb[1] / 100,
                bl = hwb[2] / 100,
                ratio = wh + bl,
                i, v, f, n;

            // wh + bl cant be > 1
            if (ratio > 1) {
                wh /= ratio;
                bl /= ratio;
            }

            i = Math.floor(6 * h);
            v = 1 - bl;
            f = 6 * h - i;
            if ((i & 0x01) != 0) {
                f = 1 - f;
            }
            n = wh + f * (v - wh);  // linear interpolation

            switch (i) {
                default:
                case 6:
                case 0: r = v; g = n; b = wh; break;
                case 1: r = n; g = v; b = wh; break;
                case 2: r = wh; g = v; b = n; break;
                case 3: r = wh; g = n; b = v; break;
                case 4: r = n; g = wh; b = v; break;
                case 5: r = v; g = wh; b = n; break;
            }

            return [r * 255, g * 255, b * 255];
        }

        function hwb2hsl(args) {
            return rgb2hsl(hwb2rgb(args));
        }

        function hwb2hsv(args) {
            return rgb2hsv(hwb2rgb(args));
        }

        function hwb2cmyk(args) {
            return rgb2cmyk(hwb2rgb(args));
        }

        function hwb2keyword(args) {
            return rgb2keyword(hwb2rgb(args));
        }

        function cmyk2rgb(cmyk) {
            var c = cmyk[0] / 100,
                m = cmyk[1] / 100,
                y = cmyk[2] / 100,
                k = cmyk[3] / 100,
                r, g, b;

            r = 1 - Math.min(1, c * (1 - k) + k);
            g = 1 - Math.min(1, m * (1 - k) + k);
            b = 1 - Math.min(1, y * (1 - k) + k);
            return [r * 255, g * 255, b * 255];
        }

        function cmyk2hsl(args) {
            return rgb2hsl(cmyk2rgb(args));
        }

        function cmyk2hsv(args) {
            return rgb2hsv(cmyk2rgb(args));
        }

        function cmyk2hwb(args) {
            return rgb2hwb(cmyk2rgb(args));
        }

        function cmyk2keyword(args) {
            return rgb2keyword(cmyk2rgb(args));
        }


        function xyz2rgb(xyz) {
            var x = xyz[0] / 100,
                y = xyz[1] / 100,
                z = xyz[2] / 100,
                r, g, b;

            r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986);
            g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415);
            b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570);

            // assume sRGB
            r = r > 0.0031308 ? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055)
                : r = (r * 12.92);

            g = g > 0.0031308 ? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055)
                : g = (g * 12.92);

            b = b > 0.0031308 ? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055)
                : b = (b * 12.92);

            r = Math.min(Math.max(0, r), 1);
            g = Math.min(Math.max(0, g), 1);
            b = Math.min(Math.max(0, b), 1);

            return [r * 255, g * 255, b * 255];
        }

        function xyz2lab(xyz) {
            var x = xyz[0],
                y = xyz[1],
                z = xyz[2],
                l, a, b;

            x /= 95.047;
            y /= 100;
            z /= 108.883;

            x = x > 0.008856 ? Math.pow(x, 1/3) : (7.787 * x) + (16 / 116);
            y = y > 0.008856 ? Math.pow(y, 1/3) : (7.787 * y) + (16 / 116);
            z = z > 0.008856 ? Math.pow(z, 1/3) : (7.787 * z) + (16 / 116);

            l = (116 * y) - 16;
            a = 500 * (x - y);
            b = 200 * (y - z);

            return [l, a, b];
        }

        function xyz2lch(args) {
            return lab2lch(xyz2lab(args));
        }

        function lab2xyz(lab) {
            var l = lab[0],
                a = lab[1],
                b = lab[2],
                x, y, z, y2;

            if (l <= 8) {
                y = (l * 100) / 903.3;
                y2 = (7.787 * (y / 100)) + (16 / 116);
            } else {
                y = 100 * Math.pow((l + 16) / 116, 3);
                y2 = Math.pow(y / 100, 1/3);
            }

            x = x / 95.047 <= 0.008856 ? x = (95.047 * ((a / 500) + y2 - (16 / 116))) / 7.787 : 95.047 * Math.pow((a / 500) + y2, 3);

            z = z / 108.883 <= 0.008859 ? z = (108.883 * (y2 - (b / 200) - (16 / 116))) / 7.787 : 108.883 * Math.pow(y2 - (b / 200), 3);

            return [x, y, z];
        }

        function lab2lch(lab) {
            var l = lab[0],
                a = lab[1],
                b = lab[2],
                hr, h, c;

            hr = Math.atan2(b, a);
            h = hr * 360 / 2 / Math.PI;
            if (h < 0) {
                h += 360;
            }
            c = Math.sqrt(a * a + b * b);
            return [l, c, h];
        }

        function lab2rgb(args) {
            return xyz2rgb(lab2xyz(args));
        }

        function lch2lab(lch) {
            var l = lch[0],
                c = lch[1],
                h = lch[2],
                a, b, hr;

            hr = h / 360 * 2 * Math.PI;
            a = c * Math.cos(hr);
            b = c * Math.sin(hr);
            return [l, a, b];
        }

        function lch2xyz(args) {
            return lab2xyz(lch2lab(args));
        }

        function lch2rgb(args) {
            return lab2rgb(lch2lab(args));
        }

        function keyword2rgb(keyword) {
            return cssKeywords[keyword];
        }

        function keyword2hsl(args) {
            return rgb2hsl(keyword2rgb(args));
        }

        function keyword2hsv(args) {
            return rgb2hsv(keyword2rgb(args));
        }

        function keyword2hwb(args) {
            return rgb2hwb(keyword2rgb(args));
        }

        function keyword2cmyk(args) {
            return rgb2cmyk(keyword2rgb(args));
        }

        function keyword2lab(args) {
            return rgb2lab(keyword2rgb(args));
        }

        function keyword2xyz(args) {
            return rgb2xyz(keyword2rgb(args));
        }

        var cssKeywords = {
            aliceblue:  [240,248,255],
            antiquewhite: [250,235,215],
            aqua: [0,255,255],
            aquamarine: [127,255,212],
            azure:  [240,255,255],
            beige:  [245,245,220],
            bisque: [255,228,196],
            black:  [0,0,0],
            blanchedalmond: [255,235,205],
            blue: [0,0,255],
            blueviolet: [138,43,226],
            brown:  [165,42,42],
            burlywood:  [222,184,135],
            cadetblue:  [95,158,160],
            chartreuse: [127,255,0],
            chocolate:  [210,105,30],
            coral:  [255,127,80],
            cornflowerblue: [100,149,237],
            cornsilk: [255,248,220],
            crimson:  [220,20,60],
            cyan: [0,255,255],
            darkblue: [0,0,139],
            darkcyan: [0,139,139],
            darkgoldenrod:  [184,134,11],
            darkgray: [169,169,169],
            darkgreen:  [0,100,0],
            darkgrey: [169,169,169],
            darkkhaki:  [189,183,107],
            darkmagenta:  [139,0,139],
            darkolivegreen: [85,107,47],
            darkorange: [255,140,0],
            darkorchid: [153,50,204],
            darkred:  [139,0,0],
            darksalmon: [233,150,122],
            darkseagreen: [143,188,143],
            darkslateblue:  [72,61,139],
            darkslategray:  [47,79,79],
            darkslategrey:  [47,79,79],
            darkturquoise:  [0,206,209],
            darkviolet: [148,0,211],
            deeppink: [255,20,147],
            deepskyblue:  [0,191,255],
            dimgray:  [105,105,105],
            dimgrey:  [105,105,105],
            dodgerblue: [30,144,255],
            firebrick:  [178,34,34],
            floralwhite:  [255,250,240],
            forestgreen:  [34,139,34],
            fuchsia:  [255,0,255],
            gainsboro:  [220,220,220],
            ghostwhite: [248,248,255],
            gold: [255,215,0],
            goldenrod:  [218,165,32],
            gray: [128,128,128],
            green:  [0,128,0],
            greenyellow:  [173,255,47],
            grey: [128,128,128],
            honeydew: [240,255,240],
            hotpink:  [255,105,180],
            indianred:  [205,92,92],
            indigo: [75,0,130],
            ivory:  [255,255,240],
            khaki:  [240,230,140],
            lavender: [230,230,250],
            lavenderblush:  [255,240,245],
            lawngreen:  [124,252,0],
            lemonchiffon: [255,250,205],
            lightblue:  [173,216,230],
            lightcoral: [240,128,128],
            lightcyan:  [224,255,255],
            lightgoldenrodyellow: [250,250,210],
            lightgray:  [211,211,211],
            lightgreen: [144,238,144],
            lightgrey:  [211,211,211],
            lightpink:  [255,182,193],
            lightsalmon:  [255,160,122],
            lightseagreen:  [32,178,170],
            lightskyblue: [135,206,250],
            lightslategray: [119,136,153],
            lightslategrey: [119,136,153],
            lightsteelblue: [176,196,222],
            lightyellow:  [255,255,224],
            lime: [0,255,0],
            limegreen:  [50,205,50],
            linen:  [250,240,230],
            magenta:  [255,0,255],
            maroon: [128,0,0],
            mediumaquamarine: [102,205,170],
            mediumblue: [0,0,205],
            mediumorchid: [186,85,211],
            mediumpurple: [147,112,219],
            mediumseagreen: [60,179,113],
            mediumslateblue:  [123,104,238],
            mediumspringgreen:  [0,250,154],
            mediumturquoise:  [72,209,204],
            mediumvioletred:  [199,21,133],
            midnightblue: [25,25,112],
            mintcream:  [245,255,250],
            mistyrose:  [255,228,225],
            moccasin: [255,228,181],
            navajowhite:  [255,222,173],
            navy: [0,0,128],
            oldlace:  [253,245,230],
            olive:  [128,128,0],
            olivedrab:  [107,142,35],
            orange: [255,165,0],
            orangered:  [255,69,0],
            orchid: [218,112,214],
            palegoldenrod:  [238,232,170],
            palegreen:  [152,251,152],
            paleturquoise:  [175,238,238],
            palevioletred:  [219,112,147],
            papayawhip: [255,239,213],
            peachpuff:  [255,218,185],
            peru: [205,133,63],
            pink: [255,192,203],
            plum: [221,160,221],
            powderblue: [176,224,230],
            purple: [128,0,128],
            rebeccapurple: [102, 51, 153],
            red:  [255,0,0],
            rosybrown:  [188,143,143],
            royalblue:  [65,105,225],
            saddlebrown:  [139,69,19],
            salmon: [250,128,114],
            sandybrown: [244,164,96],
            seagreen: [46,139,87],
            seashell: [255,245,238],
            sienna: [160,82,45],
            silver: [192,192,192],
            skyblue:  [135,206,235],
            slateblue:  [106,90,205],
            slategray:  [112,128,144],
            slategrey:  [112,128,144],
            snow: [255,250,250],
            springgreen:  [0,255,127],
            steelblue:  [70,130,180],
            tan:  [210,180,140],
            teal: [0,128,128],
            thistle:  [216,191,216],
            tomato: [255,99,71],
            turquoise:  [64,224,208],
            violet: [238,130,238],
            wheat:  [245,222,179],
            white:  [255,255,255],
            whitesmoke: [245,245,245],
            yellow: [255,255,0],
            yellowgreen:  [154,205,50]
        };

        var reverseKeywords = {};
        for (var key in cssKeywords) {
            reverseKeywords[JSON.stringify(cssKeywords[key])] = key;
        }

    },{}],4:[function(require,module,exports){
        var conversions = require(3);

        var convert = function() {
            return new Converter();
        }

        for (var func in conversions) {
            // export Raw versions
            convert[func + "Raw"] =  (function(func) {
                // accept array or plain args
                return function(arg) {
                    if (typeof arg == "number")
                        arg = Array.prototype.slice.call(arguments);
                    return conversions[func](arg);
                }
            })(func);

            var pair = /(\w+)2(\w+)/.exec(func),
                from = pair[1],
                to = pair[2];

            // export rgb2hsl and ["rgb"]["hsl"]
            convert[from] = convert[from] || {};

            convert[from][to] = convert[func] = (function(func) {
                return function(arg) {
                    if (typeof arg == "number")
                        arg = Array.prototype.slice.call(arguments);

                    var val = conversions[func](arg);
                    if (typeof val == "string" || val === undefined)
                        return val; // keyword

                    for (var i = 0; i < val.length; i++)
                        val[i] = Math.round(val[i]);
                    return val;
                }
            })(func);
        }


        /* Converter does lazy conversion and caching */
        var Converter = function() {
            this.convs = {};
        };

        /* Either get the values for a space or
  set the values for a space, depending on args */
        Converter.prototype.routeSpace = function(space, args) {
            var values = args[0];
            if (values === undefined) {
                // color.rgb()
                return this.getValues(space);
            }
            // color.rgb(10, 10, 10)
            if (typeof values == "number") {
                values = Array.prototype.slice.call(args);
            }

            return this.setValues(space, values);
        };

        /* Set the values for a space, invalidating cache */
        Converter.prototype.setValues = function(space, values) {
            this.space = space;
            this.convs = {};
            this.convs[space] = values;
            return this;
        };

        /* Get the values for a space. If there's already
  a conversion for the space, fetch it, otherwise
  compute it */
        Converter.prototype.getValues = function(space) {
            var vals = this.convs[space];
            if (!vals) {
                var fspace = this.space,
                    from = this.convs[fspace];
                vals = convert[fspace][space](from);

                this.convs[space] = vals;
            }
            return vals;
        };

        ["rgb", "hsl", "hsv", "cmyk", "keyword"].forEach(function(space) {
            Converter.prototype[space] = function(vals) {
                return this.routeSpace(space, arguments);
            }
        });

        module.exports = convert;
    },{"3":3}],5:[function(require,module,exports){
        'use strict'

        module.exports = {
            "aliceblue": [240, 248, 255],
            "antiquewhite": [250, 235, 215],
            "aqua": [0, 255, 255],
            "aquamarine": [127, 255, 212],
            "azure": [240, 255, 255],
            "beige": [245, 245, 220],
            "bisque": [255, 228, 196],
            "black": [0, 0, 0],
            "blanchedalmond": [255, 235, 205],
            "blue": [0, 0, 255],
            "blueviolet": [138, 43, 226],
            "brown": [165, 42, 42],
            "burlywood": [222, 184, 135],
            "cadetblue": [95, 158, 160],
            "chartreuse": [127, 255, 0],
            "chocolate": [210, 105, 30],
            "coral": [255, 127, 80],
            "cornflowerblue": [100, 149, 237],
            "cornsilk": [255, 248, 220],
            "crimson": [220, 20, 60],
            "cyan": [0, 255, 255],
            "darkblue": [0, 0, 139],
            "darkcyan": [0, 139, 139],
            "darkgoldenrod": [184, 134, 11],
            "darkgray": [169, 169, 169],
            "darkgreen": [0, 100, 0],
            "darkgrey": [169, 169, 169],
            "darkkhaki": [189, 183, 107],
            "darkmagenta": [139, 0, 139],
            "darkolivegreen": [85, 107, 47],
            "darkorange": [255, 140, 0],
            "darkorchid": [153, 50, 204],
            "darkred": [139, 0, 0],
            "darksalmon": [233, 150, 122],
            "darkseagreen": [143, 188, 143],
            "darkslateblue": [72, 61, 139],
            "darkslategray": [47, 79, 79],
            "darkslategrey": [47, 79, 79],
            "darkturquoise": [0, 206, 209],
            "darkviolet": [148, 0, 211],
            "deeppink": [255, 20, 147],
            "deepskyblue": [0, 191, 255],
            "dimgray": [105, 105, 105],
            "dimgrey": [105, 105, 105],
            "dodgerblue": [30, 144, 255],
            "firebrick": [178, 34, 34],
            "floralwhite": [255, 250, 240],
            "forestgreen": [34, 139, 34],
            "fuchsia": [255, 0, 255],
            "gainsboro": [220, 220, 220],
            "ghostwhite": [248, 248, 255],
            "gold": [255, 215, 0],
            "goldenrod": [218, 165, 32],
            "gray": [128, 128, 128],
            "green": [0, 128, 0],
            "greenyellow": [173, 255, 47],
            "grey": [128, 128, 128],
            "honeydew": [240, 255, 240],
            "hotpink": [255, 105, 180],
            "indianred": [205, 92, 92],
            "indigo": [75, 0, 130],
            "ivory": [255, 255, 240],
            "khaki": [240, 230, 140],
            "lavender": [230, 230, 250],
            "lavenderblush": [255, 240, 245],
            "lawngreen": [124, 252, 0],
            "lemonchiffon": [255, 250, 205],
            "lightblue": [173, 216, 230],
            "lightcoral": [240, 128, 128],
            "lightcyan": [224, 255, 255],
            "lightgoldenrodyellow": [250, 250, 210],
            "lightgray": [211, 211, 211],
            "lightgreen": [144, 238, 144],
            "lightgrey": [211, 211, 211],
            "lightpink": [255, 182, 193],
            "lightsalmon": [255, 160, 122],
            "lightseagreen": [32, 178, 170],
            "lightskyblue": [135, 206, 250],
            "lightslategray": [119, 136, 153],
            "lightslategrey": [119, 136, 153],
            "lightsteelblue": [176, 196, 222],
            "lightyellow": [255, 255, 224],
            "lime": [0, 255, 0],
            "limegreen": [50, 205, 50],
            "linen": [250, 240, 230],
            "magenta": [255, 0, 255],
            "maroon": [128, 0, 0],
            "mediumaquamarine": [102, 205, 170],
            "mediumblue": [0, 0, 205],
            "mediumorchid": [186, 85, 211],
            "mediumpurple": [147, 112, 219],
            "mediumseagreen": [60, 179, 113],
            "mediumslateblue": [123, 104, 238],
            "mediumspringgreen": [0, 250, 154],
            "mediumturquoise": [72, 209, 204],
            "mediumvioletred": [199, 21, 133],
            "midnightblue": [25, 25, 112],
            "mintcream": [245, 255, 250],
            "mistyrose": [255, 228, 225],
            "moccasin": [255, 228, 181],
            "navajowhite": [255, 222, 173],
            "navy": [0, 0, 128],
            "oldlace": [253, 245, 230],
            "olive": [128, 128, 0],
            "olivedrab": [107, 142, 35],
            "orange": [255, 165, 0],
            "orangered": [255, 69, 0],
            "orchid": [218, 112, 214],
            "palegoldenrod": [238, 232, 170],
            "palegreen": [152, 251, 152],
            "paleturquoise": [175, 238, 238],
            "palevioletred": [219, 112, 147],
            "papayawhip": [255, 239, 213],
            "peachpuff": [255, 218, 185],
            "peru": [205, 133, 63],
            "pink": [255, 192, 203],
            "plum": [221, 160, 221],
            "powderblue": [176, 224, 230],
            "purple": [128, 0, 128],
            "rebeccapurple": [102, 51, 153],
            "red": [255, 0, 0],
            "rosybrown": [188, 143, 143],
            "royalblue": [65, 105, 225],
            "saddlebrown": [139, 69, 19],
            "salmon": [250, 128, 114],
            "sandybrown": [244, 164, 96],
            "seagreen": [46, 139, 87],
            "seashell": [255, 245, 238],
            "sienna": [160, 82, 45],
            "silver": [192, 192, 192],
            "skyblue": [135, 206, 235],
            "slateblue": [106, 90, 205],
            "slategray": [112, 128, 144],
            "slategrey": [112, 128, 144],
            "snow": [255, 250, 250],
            "springgreen": [0, 255, 127],
            "steelblue": [70, 130, 180],
            "tan": [210, 180, 140],
            "teal": [0, 128, 128],
            "thistle": [216, 191, 216],
            "tomato": [255, 99, 71],
            "turquoise": [64, 224, 208],
            "violet": [238, 130, 238],
            "wheat": [245, 222, 179],
            "white": [255, 255, 255],
            "whitesmoke": [245, 245, 245],
            "yellow": [255, 255, 0],
            "yellowgreen": [154, 205, 50]
        };

    },{}],6:[function(require,module,exports){
//! moment.js
//! version : 2.20.1
//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
//! license : MIT
//! momentjs.com

        ;(function (global, factory) {
            typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
                typeof define === 'function' && define.amd ? define(factory) :
                    global.moment = factory()
        }(this, (function () { 'use strict';

            var hookCallback;

            function hooks () {
                return hookCallback.apply(null, arguments);
            }

// This is done to register the method called with moment()
// without creating circular dependencies.
            function setHookCallback (callback) {
                hookCallback = callback;
            }

            function isArray(input) {
                return input instanceof Array || Object.prototype.toString.call(input) === '[object Array]';
            }

            function isObject(input) {
                // IE8 will treat undefined and null as object if it wasn't for
                // input != null
                return input != null && Object.prototype.toString.call(input) === '[object Object]';
            }

            function isObjectEmpty(obj) {
                if (Object.getOwnPropertyNames) {
                    return (Object.getOwnPropertyNames(obj).length === 0);
                } else {
                    var k;
                    for (k in obj) {
                        if (obj.hasOwnProperty(k)) {
                            return false;
                        }
                    }
                    return true;
                }
            }

            function isUndefined(input) {
                return input === void 0;
            }

            function isNumber(input) {
                return typeof input === 'number' || Object.prototype.toString.call(input) === '[object Number]';
            }

            function isDate(input) {
                return input instanceof Date || Object.prototype.toString.call(input) === '[object Date]';
            }

            function map(arr, fn) {
                var res = [], i;
                for (i = 0; i < arr.length; ++i) {
                    res.push(fn(arr[i], i));
                }
                return res;
            }

            function hasOwnProp(a, b) {
                return Object.prototype.hasOwnProperty.call(a, b);
            }

            function extend(a, b) {
                for (var i in b) {
                    if (hasOwnProp(b, i)) {
                        a[i] = b[i];
                    }
                }

                if (hasOwnProp(b, 'toString')) {
                    a.toString = b.toString;
                }

                if (hasOwnProp(b, 'valueOf')) {
                    a.valueOf = b.valueOf;
                }

                return a;
            }

            function createUTC (input, format, locale, strict) {
                return createLocalOrUTC(input, format, locale, strict, true).utc();
            }

            function defaultParsingFlags() {
                // We need to deep clone this object.
                return {
                    empty           : false,
                    unusedTokens    : [],
                    unusedInput     : [],
                    overflow        : -2,
                    charsLeftOver   : 0,
                    nullInput       : false,
                    invalidMonth    : null,
                    invalidFormat   : false,
                    userInvalidated : false,
                    iso             : false,
                    parsedDateParts : [],
                    meridiem        : null,
                    rfc2822         : false,
                    weekdayMismatch : false
                };
            }

            function getParsingFlags(m) {
                if (m._pf == null) {
                    m._pf = defaultParsingFlags();
                }
                return m._pf;
            }

            var some;
            if (Array.prototype.some) {
                some = Array.prototype.some;
            } else {
                some = function (fun) {
                    var t = Object(this);
                    var len = t.length >>> 0;

                    for (var i = 0; i < len; i++) {
                        if (i in t && fun.call(this, t[i], i, t)) {
                            return true;
                        }
                    }

                    return false;
                };
            }

            function isValid(m) {
                if (m._isValid == null) {
                    var flags = getParsingFlags(m);
                    var parsedParts = some.call(flags.parsedDateParts, function (i) {
                        return i != null;
                    });
                    var isNowValid = !isNaN(m._d.getTime()) &&
                        flags.overflow < 0 &&
                        !flags.empty &&
                        !flags.invalidMonth &&
                        !flags.invalidWeekday &&
                        !flags.weekdayMismatch &&
                        !flags.nullInput &&
                        !flags.invalidFormat &&
                        !flags.userInvalidated &&
                        (!flags.meridiem || (flags.meridiem && parsedParts));

                    if (m._strict) {
                        isNowValid = isNowValid &&
                            flags.charsLeftOver === 0 &&
                            flags.unusedTokens.length === 0 &&
                            flags.bigHour === undefined;
                    }

                    if (Object.isFrozen == null || !Object.isFrozen(m)) {
                        m._isValid = isNowValid;
                    }
                    else {
                        return isNowValid;
                    }
                }
                return m._isValid;
            }

            function createInvalid (flags) {
                var m = createUTC(NaN);
                if (flags != null) {
                    extend(getParsingFlags(m), flags);
                }
                else {
                    getParsingFlags(m).userInvalidated = true;
                }

                return m;
            }

// Plugins that add properties should also add the key here (null value),
// so we can properly clone ourselves.
            var momentProperties = hooks.momentProperties = [];

            function copyConfig(to, from) {
                var i, prop, val;

                if (!isUndefined(from._isAMomentObject)) {
                    to._isAMomentObject = from._isAMomentObject;
                }
                if (!isUndefined(from._i)) {
                    to._i = from._i;
                }
                if (!isUndefined(from._f)) {
                    to._f = from._f;
                }
                if (!isUndefined(from._l)) {
                    to._l = from._l;
                }
                if (!isUndefined(from._strict)) {
                    to._strict = from._strict;
                }
                if (!isUndefined(from._tzm)) {
                    to._tzm = from._tzm;
                }
                if (!isUndefined(from._isUTC)) {
                    to._isUTC = from._isUTC;
                }
                if (!isUndefined(from._offset)) {
                    to._offset = from._offset;
                }
                if (!isUndefined(from._pf)) {
                    to._pf = getParsingFlags(from);
                }
                if (!isUndefined(from._locale)) {
                    to._locale = from._locale;
                }

                if (momentProperties.length > 0) {
                    for (i = 0; i < momentProperties.length; i++) {
                        prop = momentProperties[i];
                        val = from[prop];
                        if (!isUndefined(val)) {
                            to[prop] = val;
                        }
                    }
                }

                return to;
            }

            var updateInProgress = false;

// Moment prototype object
            function Moment(config) {
                copyConfig(this, config);
                this._d = new Date(config._d != null ? config._d.getTime() : NaN);
                if (!this.isValid()) {
                    this._d = new Date(NaN);
                }
                // Prevent infinite loop in case updateOffset creates new moment
                // objects.
                if (updateInProgress === false) {
                    updateInProgress = true;
                    hooks.updateOffset(this);
                    updateInProgress = false;
                }
            }

            function isMoment (obj) {
                return obj instanceof Moment || (obj != null && obj._isAMomentObject != null);
            }

            function absFloor (number) {
                if (number < 0) {
                    // -0 -> 0
                    return Math.ceil(number) || 0;
                } else {
                    return Math.floor(number);
                }
            }

            function toInt(argumentForCoercion) {
                var coercedNumber = +argumentForCoercion,
                    value = 0;

                if (coercedNumber !== 0 && isFinite(coercedNumber)) {
                    value = absFloor(coercedNumber);
                }

                return value;
            }

// compare two arrays, return the number of differences
            function compareArrays(array1, array2, dontConvert) {
                var len = Math.min(array1.length, array2.length),
                    lengthDiff = Math.abs(array1.length - array2.length),
                    diffs = 0,
                    i;
                for (i = 0; i < len; i++) {
                    if ((dontConvert && array1[i] !== array2[i]) ||
                        (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
                        diffs++;
                    }
                }
                return diffs + lengthDiff;
            }

            function warn(msg) {
                if (hooks.suppressDeprecationWarnings === false &&
                    (typeof console !==  'undefined') && console.warn) {
                    console.warn('Deprecation warning: ' + msg);
                }
            }

            function deprecate(msg, fn) {
                var firstTime = true;

                return extend(function () {
                    if (hooks.deprecationHandler != null) {
                        hooks.deprecationHandler(null, msg);
                    }
                    if (firstTime) {
                        var args = [];
                        var arg;
                        for (var i = 0; i < arguments.length; i++) {
                            arg = '';
                            if (typeof arguments[i] === 'object') {
                                arg += '\n[' + i + '] ';
                                for (var key in arguments[0]) {
                                    arg += key + ': ' + arguments[0][key] + ', ';
                                }
                                arg = arg.slice(0, -2); // Remove trailing comma and space
                            } else {
                                arg = arguments[i];
                            }
                            args.push(arg);
                        }
                        warn(msg + '\nArguments: ' + Array.prototype.slice.call(args).join('') + '\n' + (new Error()).stack);
                        firstTime = false;
                    }
                    return fn.apply(this, arguments);
                }, fn);
            }

            var deprecations = {};

            function deprecateSimple(name, msg) {
                if (hooks.deprecationHandler != null) {
                    hooks.deprecationHandler(name, msg);
                }
                if (!deprecations[name]) {
                    warn(msg);
                    deprecations[name] = true;
                }
            }

            hooks.suppressDeprecationWarnings = false;
            hooks.deprecationHandler = null;

            function isFunction(input) {
                return input instanceof Function || Object.prototype.toString.call(input) === '[object Function]';
            }

            function set (config) {
                var prop, i;
                for (i in config) {
                    prop = config[i];
                    if (isFunction(prop)) {
                        this[i] = prop;
                    } else {
                        this['_' + i] = prop;
                    }
                }
                this._config = config;
                // Lenient ordinal parsing accepts just a number in addition to
                // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
                // TODO: Remove "ordinalParse" fallback in next major release.
                this._dayOfMonthOrdinalParseLenient = new RegExp(
                    (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
                    '|' + (/\d{1,2}/).source);
            }

            function mergeConfigs(parentConfig, childConfig) {
                var res = extend({}, parentConfig), prop;
                for (prop in childConfig) {
                    if (hasOwnProp(childConfig, prop)) {
                        if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
                            res[prop] = {};
                            extend(res[prop], parentConfig[prop]);
                            extend(res[prop], childConfig[prop]);
                        } else if (childConfig[prop] != null) {
                            res[prop] = childConfig[prop];
                        } else {
                            delete res[prop];
                        }
                    }
                }
                for (prop in parentConfig) {
                    if (hasOwnProp(parentConfig, prop) &&
                        !hasOwnProp(childConfig, prop) &&
                        isObject(parentConfig[prop])) {
                        // make sure changes to properties don't modify parent config
                        res[prop] = extend({}, res[prop]);
                    }
                }
                return res;
            }

            function Locale(config) {
                if (config != null) {
                    this.set(config);
                }
            }

            var keys;

            if (Object.keys) {
                keys = Object.keys;
            } else {
                keys = function (obj) {
                    var i, res = [];
                    for (i in obj) {
                        if (hasOwnProp(obj, i)) {
                            res.push(i);
                        }
                    }
                    return res;
                };
            }

            var defaultCalendar = {
                sameDay : '[Today at] LT',
                nextDay : '[Tomorrow at] LT',
                nextWeek : 'dddd [at] LT',
                lastDay : '[Yesterday at] LT',
                lastWeek : '[Last] dddd [at] LT',
                sameElse : 'L'
            };

            function calendar (key, mom, now) {
                var output = this._calendar[key] || this._calendar['sameElse'];
                return isFunction(output) ? output.call(mom, now) : output;
            }

            var defaultLongDateFormat = {
                LTS  : 'h:mm:ss A',
                LT   : 'h:mm A',
                L    : 'MM/DD/YYYY',
                LL   : 'MMMM D, YYYY',
                LLL  : 'MMMM D, YYYY h:mm A',
                LLLL : 'dddd, MMMM D, YYYY h:mm A'
            };

            function longDateFormat (key) {
                var format = this._longDateFormat[key],
                    formatUpper = this._longDateFormat[key.toUpperCase()];

                if (format || !formatUpper) {
                    return format;
                }

                this._longDateFormat[key] = formatUpper.replace(/MMMM|MM|DD|dddd/g, function (val) {
                    return val.slice(1);
                });

                return this._longDateFormat[key];
            }

            var defaultInvalidDate = 'Invalid date';

            function invalidDate () {
                return this._invalidDate;
            }

            var defaultOrdinal = '%d';
            var defaultDayOfMonthOrdinalParse = /\d{1,2}/;

            function ordinal (number) {
                return this._ordinal.replace('%d', number);
            }

            var defaultRelativeTime = {
                future : 'in %s',
                past   : '%s ago',
                s  : 'a few seconds',
                ss : '%d seconds',
                m  : 'a minute',
                mm : '%d minutes',
                h  : 'an hour',
                hh : '%d hours',
                d  : 'a day',
                dd : '%d days',
                M  : 'a month',
                MM : '%d months',
                y  : 'a year',
                yy : '%d years'
            };

            function relativeTime (number, withoutSuffix, string, isFuture) {
                var output = this._relativeTime[string];
                return (isFunction(output)) ?
                    output(number, withoutSuffix, string, isFuture) :
                    output.replace(/%d/i, number);
            }

            function pastFuture (diff, output) {
                var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
                return isFunction(format) ? format(output) : format.replace(/%s/i, output);
            }

            var aliases = {};

            function addUnitAlias (unit, shorthand) {
                var lowerCase = unit.toLowerCase();
                aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
            }

            function normalizeUnits(units) {
                return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined;
            }

            function normalizeObjectUnits(inputObject) {
                var normalizedInput = {},
                    normalizedProp,
                    prop;

                for (prop in inputObject) {
                    if (hasOwnProp(inputObject, prop)) {
                        normalizedProp = normalizeUnits(prop);
                        if (normalizedProp) {
                            normalizedInput[normalizedProp] = inputObject[prop];
                        }
                    }
                }

                return normalizedInput;
            }

            var priorities = {};

            function addUnitPriority(unit, priority) {
                priorities[unit] = priority;
            }

            function getPrioritizedUnits(unitsObj) {
                var units = [];
                for (var u in unitsObj) {
                    units.push({unit: u, priority: priorities[u]});
                }
                units.sort(function (a, b) {
                    return a.priority - b.priority;
                });
                return units;
            }

            function zeroFill(number, targetLength, forceSign) {
                var absNumber = '' + Math.abs(number),
                    zerosToFill = targetLength - absNumber.length,
                    sign = number >= 0;
                return (sign ? (forceSign ? '+' : '') : '-') +
                    Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber;
            }

            var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g;

            var localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g;

            var formatFunctions = {};

            var formatTokenFunctions = {};

// token:    'M'
// padded:   ['MM', 2]
// ordinal:  'Mo'
// callback: function () { this.month() + 1 }
            function addFormatToken (token, padded, ordinal, callback) {
                var func = callback;
                if (typeof callback === 'string') {
                    func = function () {
                        return this[callback]();
                    };
                }
                if (token) {
                    formatTokenFunctions[token] = func;
                }
                if (padded) {
                    formatTokenFunctions[padded[0]] = function () {
                        return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
                    };
                }
                if (ordinal) {
                    formatTokenFunctions[ordinal] = function () {
                        return this.localeData().ordinal(func.apply(this, arguments), token);
                    };
                }
            }

            function removeFormattingTokens(input) {
                if (input.match(/\[[\s\S]/)) {
                    return input.replace(/^\[|\]$/g, '');
                }
                return input.replace(/\\/g, '');
            }

            function makeFormatFunction(format) {
                var array = format.match(formattingTokens), i, length;

                for (i = 0, length = array.length; i < length; i++) {
                    if (formatTokenFunctions[array[i]]) {
                        array[i] = formatTokenFunctions[array[i]];
                    } else {
                        array[i] = removeFormattingTokens(array[i]);
                    }
                }

                return function (mom) {
                    var output = '', i;
                    for (i = 0; i < length; i++) {
                        output += isFunction(array[i]) ? array[i].call(mom, format) : array[i];
                    }
                    return output;
                };
            }

// format date using native date object
            function formatMoment(m, format) {
                if (!m.isValid()) {
                    return m.localeData().invalidDate();
                }

                format = expandFormat(format, m.localeData());
                formatFunctions[format] = formatFunctions[format] || makeFormatFunction(format);

                return formatFunctions[format](m);
            }

            function expandFormat(format, locale) {
                var i = 5;

                function replaceLongDateFormatTokens(input) {
                    return locale.longDateFormat(input) || input;
                }

                localFormattingTokens.lastIndex = 0;
                while (i >= 0 && localFormattingTokens.test(format)) {
                    format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
                    localFormattingTokens.lastIndex = 0;
                    i -= 1;
                }

                return format;
            }

            var match1         = /\d/;            //       0 - 9
            var match2         = /\d\d/;          //      00 - 99
            var match3         = /\d{3}/;         //     000 - 999
            var match4         = /\d{4}/;         //    0000 - 9999
            var match6         = /[+-]?\d{6}/;    // -999999 - 999999
            var match1to2      = /\d\d?/;         //       0 - 99
            var match3to4      = /\d\d\d\d?/;     //     999 - 9999
            var match5to6      = /\d\d\d\d\d\d?/; //   99999 - 999999
            var match1to3      = /\d{1,3}/;       //       0 - 999
            var match1to4      = /\d{1,4}/;       //       0 - 9999
            var match1to6      = /[+-]?\d{1,6}/;  // -999999 - 999999

            var matchUnsigned  = /\d+/;           //       0 - inf
            var matchSigned    = /[+-]?\d+/;      //    -inf - inf

            var matchOffset    = /Z|[+-]\d\d:?\d\d/gi; // +00:00 -00:00 +0000 -0000 or Z
            var matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi; // +00 -00 +00:00 -00:00 +0000 -0000 or Z

            var matchTimestamp = /[+-]?\d+(\.\d{1,3})?/; // 123456789 123456789.123

// any word (or two) characters or numbers including two/three word month in arabic.
// includes scottish gaelic two word and hyphenated months
            var matchWord = /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i;


            var regexes = {};

            function addRegexToken (token, regex, strictRegex) {
                regexes[token] = isFunction(regex) ? regex : function (isStrict, localeData) {
                    return (isStrict && strictRegex) ? strictRegex : regex;
                };
            }

            function getParseRegexForToken (token, config) {
                if (!hasOwnProp(regexes, token)) {
                    return new RegExp(unescapeFormat(token));
                }

                return regexes[token](config._strict, config._locale);
            }

// Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
            function unescapeFormat(s) {
                return regexEscape(s.replace('\\', '').replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
                    return p1 || p2 || p3 || p4;
                }));
            }

            function regexEscape(s) {
                return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
            }

            var tokens = {};

            function addParseToken (token, callback) {
                var i, func = callback;
                if (typeof token === 'string') {
                    token = [token];
                }
                if (isNumber(callback)) {
                    func = function (input, array) {
                        array[callback] = toInt(input);
                    };
                }
                for (i = 0; i < token.length; i++) {
                    tokens[token[i]] = func;
                }
            }

            function addWeekParseToken (token, callback) {
                addParseToken(token, function (input, array, config, token) {
                    config._w = config._w || {};
                    callback(input, config._w, config, token);
                });
            }

            function addTimeToArrayFromToken(token, input, config) {
                if (input != null && hasOwnProp(tokens, token)) {
                    tokens[token](input, config._a, config, token);
                }
            }

            var YEAR = 0;
            var MONTH = 1;
            var DATE = 2;
            var HOUR = 3;
            var MINUTE = 4;
            var SECOND = 5;
            var MILLISECOND = 6;
            var WEEK = 7;
            var WEEKDAY = 8;

// FORMATTING

            addFormatToken('Y', 0, 0, function () {
                var y = this.year();
                return y <= 9999 ? '' + y : '+' + y;
            });

            addFormatToken(0, ['YY', 2], 0, function () {
                return this.year() % 100;
            });

            addFormatToken(0, ['YYYY',   4],       0, 'year');
            addFormatToken(0, ['YYYYY',  5],       0, 'year');
            addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');

// ALIASES

            addUnitAlias('year', 'y');

// PRIORITIES

            addUnitPriority('year', 1);

// PARSING

            addRegexToken('Y',      matchSigned);
            addRegexToken('YY',     match1to2, match2);
            addRegexToken('YYYY',   match1to4, match4);
            addRegexToken('YYYYY',  match1to6, match6);
            addRegexToken('YYYYYY', match1to6, match6);

            addParseToken(['YYYYY', 'YYYYYY'], YEAR);
            addParseToken('YYYY', function (input, array) {
                array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
            });
            addParseToken('YY', function (input, array) {
                array[YEAR] = hooks.parseTwoDigitYear(input);
            });
            addParseToken('Y', function (input, array) {
                array[YEAR] = parseInt(input, 10);
            });

// HELPERS

            function daysInYear(year) {
                return isLeapYear(year) ? 366 : 365;
            }

            function isLeapYear(year) {
                return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
            }

// HOOKS

            hooks.parseTwoDigitYear = function (input) {
                return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
            };

// MOMENTS

            var getSetYear = makeGetSet('FullYear', true);

            function getIsLeapYear () {
                return isLeapYear(this.year());
            }

            function makeGetSet (unit, keepTime) {
                return function (value) {
                    if (value != null) {
                        set$1(this, unit, value);
                        hooks.updateOffset(this, keepTime);
                        return this;
                    } else {
                        return get(this, unit);
                    }
                };
            }

            function get (mom, unit) {
                return mom.isValid() ?
                    mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
            }

            function set$1 (mom, unit, value) {
                if (mom.isValid() && !isNaN(value)) {
                    if (unit === 'FullYear' && isLeapYear(mom.year()) && mom.month() === 1 && mom.date() === 29) {
                        mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value, mom.month(), daysInMonth(value, mom.month()));
                    }
                    else {
                        mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
                    }
                }
            }

// MOMENTS

            function stringGet (units) {
                units = normalizeUnits(units);
                if (isFunction(this[units])) {
                    return this[units]();
                }
                return this;
            }


            function stringSet (units, value) {
                if (typeof units === 'object') {
                    units = normalizeObjectUnits(units);
                    var prioritized = getPrioritizedUnits(units);
                    for (var i = 0; i < prioritized.length; i++) {
                        this[prioritized[i].unit](units[prioritized[i].unit]);
                    }
                } else {
                    units = normalizeUnits(units);
                    if (isFunction(this[units])) {
                        return this[units](value);
                    }
                }
                return this;
            }

            function mod(n, x) {
                return ((n % x) + x) % x;
            }

            var indexOf;

            if (Array.prototype.indexOf) {
                indexOf = Array.prototype.indexOf;
            } else {
                indexOf = function (o) {
                    // I know
                    var i;
                    for (i = 0; i < this.length; ++i) {
                        if (this[i] === o) {
                            return i;
                        }
                    }
                    return -1;
                };
            }

            function daysInMonth(year, month) {
                if (isNaN(year) || isNaN(month)) {
                    return NaN;
                }
                var modMonth = mod(month, 12);
                year += (month - modMonth) / 12;
                return modMonth === 1 ? (isLeapYear(year) ? 29 : 28) : (31 - modMonth % 7 % 2);
            }

// FORMATTING

            addFormatToken('M', ['MM', 2], 'Mo', function () {
                return this.month() + 1;
            });

            addFormatToken('MMM', 0, 0, function (format) {
                return this.localeData().monthsShort(this, format);
            });

            addFormatToken('MMMM', 0, 0, function (format) {
                return this.localeData().months(this, format);
            });

// ALIASES

            addUnitAlias('month', 'M');

// PRIORITY

            addUnitPriority('month', 8);

// PARSING

            addRegexToken('M',    match1to2);
            addRegexToken('MM',   match1to2, match2);
            addRegexToken('MMM',  function (isStrict, locale) {
                return locale.monthsShortRegex(isStrict);
            });
            addRegexToken('MMMM', function (isStrict, locale) {
                return locale.monthsRegex(isStrict);
            });

            addParseToken(['M', 'MM'], function (input, array) {
                array[MONTH] = toInt(input) - 1;
            });

            addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
                var month = config._locale.monthsParse(input, token, config._strict);
                // if we didn't find a month name, mark the date as invalid.
                if (month != null) {
                    array[MONTH] = month;
                } else {
                    getParsingFlags(config).invalidMonth = input;
                }
            });

// LOCALES

            var MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/;
            var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_');
            function localeMonths (m, format) {
                if (!m) {
                    return isArray(this._months) ? this._months :
                        this._months['standalone'];
                }
                return isArray(this._months) ? this._months[m.month()] :
                    this._months[(this._months.isFormat || MONTHS_IN_FORMAT).test(format) ? 'format' : 'standalone'][m.month()];
            }

            var defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_');
            function localeMonthsShort (m, format) {
                if (!m) {
                    return isArray(this._monthsShort) ? this._monthsShort :
                        this._monthsShort['standalone'];
                }
                return isArray(this._monthsShort) ? this._monthsShort[m.month()] :
                    this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()];
            }

            function handleStrictParse(monthName, format, strict) {
                var i, ii, mom, llc = monthName.toLocaleLowerCase();
                if (!this._monthsParse) {
                    // this is not used
                    this._monthsParse = [];
                    this._longMonthsParse = [];
                    this._shortMonthsParse = [];
                    for (i = 0; i < 12; ++i) {
                        mom = createUTC([2000, i]);
                        this._shortMonthsParse[i] = this.monthsShort(mom, '').toLocaleLowerCase();
                        this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
                    }
                }

                if (strict) {
                    if (format === 'MMM') {
                        ii = indexOf.call(this._shortMonthsParse, llc);
                        return ii !== -1 ? ii : null;
                    } else {
                        ii = indexOf.call(this._longMonthsParse, llc);
                        return ii !== -1 ? ii : null;
                    }
                } else {
                    if (format === 'MMM') {
                        ii = indexOf.call(this._shortMonthsParse, llc);
                        if (ii !== -1) {
                            return ii;
                        }
                        ii = indexOf.call(this._longMonthsParse, llc);
                        return ii !== -1 ? ii : null;
                    } else {
                        ii = indexOf.call(this._longMonthsParse, llc);
                        if (ii !== -1) {
                            return ii;
                        }
                        ii = indexOf.call(this._shortMonthsParse, llc);
                        return ii !== -1 ? ii : null;
                    }
                }
            }

            function localeMonthsParse (monthName, format, strict) {
                var i, mom, regex;

                if (this._monthsParseExact) {
                    return handleStrictParse.call(this, monthName, format, strict);
                }

                if (!this._monthsParse) {
                    this._monthsParse = [];
                    this._longMonthsParse = [];
                    this._shortMonthsParse = [];
                }

                // TODO: add sorting
                // Sorting makes sure if one month (or abbr) is a prefix of another
                // see sorting in computeMonthsParse
                for (i = 0; i < 12; i++) {
                    // make the regex if we don't have it already
                    mom = createUTC([2000, i]);
                    if (strict && !this._longMonthsParse[i]) {
                        this._longMonthsParse[i] = new RegExp('^' + this.months(mom, '').replace('.', '') + '$', 'i');
                        this._shortMonthsParse[i] = new RegExp('^' + this.monthsShort(mom, '').replace('.', '') + '$', 'i');
                    }
                    if (!strict && !this._monthsParse[i]) {
                        regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
                        this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
                    }
                    // test the regex
                    if (strict && format === 'MMMM' && this._longMonthsParse[i].test(monthName)) {
                        return i;
                    } else if (strict && format === 'MMM' && this._shortMonthsParse[i].test(monthName)) {
                        return i;
                    } else if (!strict && this._monthsParse[i].test(monthName)) {
                        return i;
                    }
                }
            }

// MOMENTS

            function setMonth (mom, value) {
                var dayOfMonth;

                if (!mom.isValid()) {
                    // No op
                    return mom;
                }

                if (typeof value === 'string') {
                    if (/^\d+$/.test(value)) {
                        value = toInt(value);
                    } else {
                        value = mom.localeData().monthsParse(value);
                        // TODO: Another silent failure?
                        if (!isNumber(value)) {
                            return mom;
                        }
                    }
                }

                dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
                mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
                return mom;
            }

            function getSetMonth (value) {
                if (value != null) {
                    setMonth(this, value);
                    hooks.updateOffset(this, true);
                    return this;
                } else {
                    return get(this, 'Month');
                }
            }

            function getDaysInMonth () {
                return daysInMonth(this.year(), this.month());
            }

            var defaultMonthsShortRegex = matchWord;
            function monthsShortRegex (isStrict) {
                if (this._monthsParseExact) {
                    if (!hasOwnProp(this, '_monthsRegex')) {
                        computeMonthsParse.call(this);
                    }
                    if (isStrict) {
                        return this._monthsShortStrictRegex;
                    } else {
                        return this._monthsShortRegex;
                    }
                } else {
                    if (!hasOwnProp(this, '_monthsShortRegex')) {
                        this._monthsShortRegex = defaultMonthsShortRegex;
                    }
                    return this._monthsShortStrictRegex && isStrict ?
                        this._monthsShortStrictRegex : this._monthsShortRegex;
                }
            }

            var defaultMonthsRegex = matchWord;
            function monthsRegex (isStrict) {
                if (this._monthsParseExact) {
                    if (!hasOwnProp(this, '_monthsRegex')) {
                        computeMonthsParse.call(this);
                    }
                    if (isStrict) {
                        return this._monthsStrictRegex;
                    } else {
                        return this._monthsRegex;
                    }
                } else {
                    if (!hasOwnProp(this, '_monthsRegex')) {
                        this._monthsRegex = defaultMonthsRegex;
                    }
                    return this._monthsStrictRegex && isStrict ?
                        this._monthsStrictRegex : this._monthsRegex;
                }
            }

            function computeMonthsParse () {
                function cmpLenRev(a, b) {
                    return b.length - a.length;
                }

                var shortPieces = [], longPieces = [], mixedPieces = [],
                    i, mom;
                for (i = 0; i < 12; i++) {
                    // make the regex if we don't have it already
                    mom = createUTC([2000, i]);
                    shortPieces.push(this.monthsShort(mom, ''));
                    longPieces.push(this.months(mom, ''));
                    mixedPieces.push(this.months(mom, ''));
                    mixedPieces.push(this.monthsShort(mom, ''));
                }
                // Sorting makes sure if one month (or abbr) is a prefix of another it
                // will match the longer piece.
                shortPieces.sort(cmpLenRev);
                longPieces.sort(cmpLenRev);
                mixedPieces.sort(cmpLenRev);
                for (i = 0; i < 12; i++) {
                    shortPieces[i] = regexEscape(shortPieces[i]);
                    longPieces[i] = regexEscape(longPieces[i]);
                }
                for (i = 0; i < 24; i++) {
                    mixedPieces[i] = regexEscape(mixedPieces[i]);
                }

                this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
                this._monthsShortRegex = this._monthsRegex;
                this._monthsStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
                this._monthsShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
            }

            function createDate (y, m, d, h, M, s, ms) {
                // can't just apply() to create a date:
                // https://stackoverflow.com/q/181348
                var date = new Date(y, m, d, h, M, s, ms);

                // the date constructor remaps years 0-99 to 1900-1999
                if (y < 100 && y >= 0 && isFinite(date.getFullYear())) {
                    date.setFullYear(y);
                }
                return date;
            }

            function createUTCDate (y) {
                var date = new Date(Date.UTC.apply(null, arguments));

                // the Date.UTC function remaps years 0-99 to 1900-1999
                if (y < 100 && y >= 0 && isFinite(date.getUTCFullYear())) {
                    date.setUTCFullYear(y);
                }
                return date;
            }

// start-of-first-week - start-of-year
            function firstWeekOffset(year, dow, doy) {
                var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
                    fwd = 7 + dow - doy,
                    // first-week day local weekday -- which local weekday is fwd
                    fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;

                return -fwdlw + fwd - 1;
            }

// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
            function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
                var localWeekday = (7 + weekday - dow) % 7,
                    weekOffset = firstWeekOffset(year, dow, doy),
                    dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
                    resYear, resDayOfYear;

                if (dayOfYear <= 0) {
                    resYear = year - 1;
                    resDayOfYear = daysInYear(resYear) + dayOfYear;
                } else if (dayOfYear > daysInYear(year)) {
                    resYear = year + 1;
                    resDayOfYear = dayOfYear - daysInYear(year);
                } else {
                    resYear = year;
                    resDayOfYear = dayOfYear;
                }

                return {
                    year: resYear,
                    dayOfYear: resDayOfYear
                };
            }

            function weekOfYear(mom, dow, doy) {
                var weekOffset = firstWeekOffset(mom.year(), dow, doy),
                    week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
                    resWeek, resYear;

                if (week < 1) {
                    resYear = mom.year() - 1;
                    resWeek = week + weeksInYear(resYear, dow, doy);
                } else if (week > weeksInYear(mom.year(), dow, doy)) {
                    resWeek = week - weeksInYear(mom.year(), dow, doy);
                    resYear = mom.year() + 1;
                } else {
                    resYear = mom.year();
                    resWeek = week;
                }

                return {
                    week: resWeek,
                    year: resYear
                };
            }

            function weeksInYear(year, dow, doy) {
                var weekOffset = firstWeekOffset(year, dow, doy),
                    weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
                return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
            }

// FORMATTING

            addFormatToken('w', ['ww', 2], 'wo', 'week');
            addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');

// ALIASES

            addUnitAlias('week', 'w');
            addUnitAlias('isoWeek', 'W');

// PRIORITIES

            addUnitPriority('week', 5);
            addUnitPriority('isoWeek', 5);

// PARSING

            addRegexToken('w',  match1to2);
            addRegexToken('ww', match1to2, match2);
            addRegexToken('W',  match1to2);
            addRegexToken('WW', match1to2, match2);

            addWeekParseToken(['w', 'ww', 'W', 'WW'], function (input, week, config, token) {
                week[token.substr(0, 1)] = toInt(input);
            });

// HELPERS

// LOCALES

            function localeWeek (mom) {
                return weekOfYear(mom, this._week.dow, this._week.doy).week;
            }

            var defaultLocaleWeek = {
                dow : 0, // Sunday is the first day of the week.
                doy : 6  // The week that contains Jan 1st is the first week of the year.
            };

            function localeFirstDayOfWeek () {
                return this._week.dow;
            }

            function localeFirstDayOfYear () {
                return this._week.doy;
            }

// MOMENTS

            function getSetWeek (input) {
                var week = this.localeData().week(this);
                return input == null ? week : this.add((input - week) * 7, 'd');
            }

            function getSetISOWeek (input) {
                var week = weekOfYear(this, 1, 4).week;
                return input == null ? week : this.add((input - week) * 7, 'd');
            }

// FORMATTING

            addFormatToken('d', 0, 'do', 'day');

            addFormatToken('dd', 0, 0, function (format) {
                return this.localeData().weekdaysMin(this, format);
            });

            addFormatToken('ddd', 0, 0, function (format) {
                return this.localeData().weekdaysShort(this, format);
            });

            addFormatToken('dddd', 0, 0, function (format) {
                return this.localeData().weekdays(this, format);
            });

            addFormatToken('e', 0, 0, 'weekday');
            addFormatToken('E', 0, 0, 'isoWeekday');

// ALIASES

            addUnitAlias('day', 'd');
            addUnitAlias('weekday', 'e');
            addUnitAlias('isoWeekday', 'E');

// PRIORITY
            addUnitPriority('day', 11);
            addUnitPriority('weekday', 11);
            addUnitPriority('isoWeekday', 11);

// PARSING

            addRegexToken('d',    match1to2);
            addRegexToken('e',    match1to2);
            addRegexToken('E',    match1to2);
            addRegexToken('dd',   function (isStrict, locale) {
                return locale.weekdaysMinRegex(isStrict);
            });
            addRegexToken('ddd',   function (isStrict, locale) {
                return locale.weekdaysShortRegex(isStrict);
            });
            addRegexToken('dddd',   function (isStrict, locale) {
                return locale.weekdaysRegex(isStrict);
            });

            addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
                var weekday = config._locale.weekdaysParse(input, token, config._strict);
                // if we didn't get a weekday name, mark the date as invalid
                if (weekday != null) {
                    week.d = weekday;
                } else {
                    getParsingFlags(config).invalidWeekday = input;
                }
            });

            addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
                week[token] = toInt(input);
            });

// HELPERS

            function parseWeekday(input, locale) {
                if (typeof input !== 'string') {
                    return input;
                }

                if (!isNaN(input)) {
                    return parseInt(input, 10);
                }

                input = locale.weekdaysParse(input);
                if (typeof input === 'number') {
                    return input;
                }

                return null;
            }

            function parseIsoWeekday(input, locale) {
                if (typeof input === 'string') {
                    return locale.weekdaysParse(input) % 7 || 7;
                }
                return isNaN(input) ? null : input;
            }

// LOCALES

            var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_');
            function localeWeekdays (m, format) {
                if (!m) {
                    return isArray(this._weekdays) ? this._weekdays :
                        this._weekdays['standalone'];
                }
                return isArray(this._weekdays) ? this._weekdays[m.day()] :
                    this._weekdays[this._weekdays.isFormat.test(format) ? 'format' : 'standalone'][m.day()];
            }

            var defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_');
            function localeWeekdaysShort (m) {
                return (m) ? this._weekdaysShort[m.day()] : this._weekdaysShort;
            }

            var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_');
            function localeWeekdaysMin (m) {
                return (m) ? this._weekdaysMin[m.day()] : this._weekdaysMin;
            }

            function handleStrictParse$1(weekdayName, format, strict) {
                var i, ii, mom, llc = weekdayName.toLocaleLowerCase();
                if (!this._weekdaysParse) {
                    this._weekdaysParse = [];
                    this._shortWeekdaysParse = [];
                    this._minWeekdaysParse = [];

                    for (i = 0; i < 7; ++i) {
                        mom = createUTC([2000, 1]).day(i);
                        this._minWeekdaysParse[i] = this.weekdaysMin(mom, '').toLocaleLowerCase();
                        this._shortWeekdaysParse[i] = this.weekdaysShort(mom, '').toLocaleLowerCase();
                        this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
                    }
                }

                if (strict) {
                    if (format === 'dddd') {
                        ii = indexOf.call(this._weekdaysParse, llc);
                        return ii !== -1 ? ii : null;
                    } else if (format === 'ddd') {
                        ii = indexOf.call(this._shortWeekdaysParse, llc);
                        return ii !== -1 ? ii : null;
                    } else {
                        ii = indexOf.call(this._minWeekdaysParse, llc);
                        return ii !== -1 ? ii : null;
                    }
                } else {
                    if (format === 'dddd') {
                        ii = indexOf.call(this._weekdaysParse, llc);
                        if (ii !== -1) {
                            return ii;
                        }
                        ii = indexOf.call(this._shortWeekdaysParse, llc);
                        if (ii !== -1) {
                            return ii;
                        }
                        ii = indexOf.call(this._minWeekdaysParse, llc);
                        return ii !== -1 ? ii : null;
                    } else if (format === 'ddd') {
                        ii = indexOf.call(this._shortWeekdaysParse, llc);
                        if (ii !== -1) {
                            return ii;
                        }
                        ii = indexOf.call(this._weekdaysParse, llc);
                        if (ii !== -1) {
                            return ii;
                        }
                        ii = indexOf.call(this._minWeekdaysParse, llc);
                        return ii !== -1 ? ii : null;
                    } else {
                        ii = indexOf.call(this._minWeekdaysParse, llc);
                        if (ii !== -1) {
                            return ii;
                        }
                        ii = indexOf.call(this._weekdaysParse, llc);
                        if (ii !== -1) {
                            return ii;
                        }
                        ii = indexOf.call(this._shortWeekdaysParse, llc);
                        return ii !== -1 ? ii : null;
                    }
                }
            }

            function localeWeekdaysParse (weekdayName, format, strict) {
                var i, mom, regex;

                if (this._weekdaysParseExact) {
                    return handleStrictParse$1.call(this, weekdayName, format, strict);
                }

                if (!this._weekdaysParse) {
                    this._weekdaysParse = [];
                    this._minWeekdaysParse = [];
                    this._shortWeekdaysParse = [];
                    this._fullWeekdaysParse = [];
                }

                for (i = 0; i < 7; i++) {
                    // make the regex if we don't have it already

                    mom = createUTC([2000, 1]).day(i);
                    if (strict && !this._fullWeekdaysParse[i]) {
                        this._fullWeekdaysParse[i] = new RegExp('^' + this.weekdays(mom, '').replace('.', '\.?') + '$', 'i');
                        this._shortWeekdaysParse[i] = new RegExp('^' + this.weekdaysShort(mom, '').replace('.', '\.?') + '$', 'i');
                        this._minWeekdaysParse[i] = new RegExp('^' + this.weekdaysMin(mom, '').replace('.', '\.?') + '$', 'i');
                    }
                    if (!this._weekdaysParse[i]) {
                        regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
                        this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
                    }
                    // test the regex
                    if (strict && format === 'dddd' && this._fullWeekdaysParse[i].test(weekdayName)) {
                        return i;
                    } else if (strict && format === 'ddd' && this._shortWeekdaysParse[i].test(weekdayName)) {
                        return i;
                    } else if (strict && format === 'dd' && this._minWeekdaysParse[i].test(weekdayName)) {
                        return i;
                    } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
                        return i;
                    }
                }
            }

// MOMENTS

            function getSetDayOfWeek (input) {
                if (!this.isValid()) {
                    return input != null ? this : NaN;
                }
                var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
                if (input != null) {
                    input = parseWeekday(input, this.localeData());
                    return this.add(input - day, 'd');
                } else {
                    return day;
                }
            }

            function getSetLocaleDayOfWeek (input) {
                if (!this.isValid()) {
                    return input != null ? this : NaN;
                }
                var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
                return input == null ? weekday : this.add(input - weekday, 'd');
            }

            function getSetISODayOfWeek (input) {
                if (!this.isValid()) {
                    return input != null ? this : NaN;
                }

                // behaves the same as moment#day except
                // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
                // as a setter, sunday should belong to the previous week.

                if (input != null) {
                    var weekday = parseIsoWeekday(input, this.localeData());
                    return this.day(this.day() % 7 ? weekday : weekday - 7);
                } else {
                    return this.day() || 7;
                }
            }

            var defaultWeekdaysRegex = matchWord;
            function weekdaysRegex (isStrict) {
                if (this._weekdaysParseExact) {
                    if (!hasOwnProp(this, '_weekdaysRegex')) {
                        computeWeekdaysParse.call(this);
                    }
                    if (isStrict) {
                        return this._weekdaysStrictRegex;
                    } else {
                        return this._weekdaysRegex;
                    }
                } else {
                    if (!hasOwnProp(this, '_weekdaysRegex')) {
                        this._weekdaysRegex = defaultWeekdaysRegex;
                    }
                    return this._weekdaysStrictRegex && isStrict ?
                        this._weekdaysStrictRegex : this._weekdaysRegex;
                }
            }

            var defaultWeekdaysShortRegex = matchWord;
            function weekdaysShortRegex (isStrict) {
                if (this._weekdaysParseExact) {
                    if (!hasOwnProp(this, '_weekdaysRegex')) {
                        computeWeekdaysParse.call(this);
                    }
                    if (isStrict) {
                        return this._weekdaysShortStrictRegex;
                    } else {
                        return this._weekdaysShortRegex;
                    }
                } else {
                    if (!hasOwnProp(this, '_weekdaysShortRegex')) {
                        this._weekdaysShortRegex = defaultWeekdaysShortRegex;
                    }
                    return this._weekdaysShortStrictRegex && isStrict ?
                        this._weekdaysShortStrictRegex : this._weekdaysShortRegex;
                }
            }

            var defaultWeekdaysMinRegex = matchWord;
            function weekdaysMinRegex (isStrict) {
                if (this._weekdaysParseExact) {
                    if (!hasOwnProp(this, '_weekdaysRegex')) {
                        computeWeekdaysParse.call(this);
                    }
                    if (isStrict) {
                        return this._weekdaysMinStrictRegex;
                    } else {
                        return this._weekdaysMinRegex;
                    }
                } else {
                    if (!hasOwnProp(this, '_weekdaysMinRegex')) {
                        this._weekdaysMinRegex = defaultWeekdaysMinRegex;
                    }
                    return this._weekdaysMinStrictRegex && isStrict ?
                        this._weekdaysMinStrictRegex : this._weekdaysMinRegex;
                }
            }


            function computeWeekdaysParse () {
                function cmpLenRev(a, b) {
                    return b.length - a.length;
                }

                var minPieces = [], shortPieces = [], longPieces = [], mixedPieces = [],
                    i, mom, minp, shortp, longp;
                for (i = 0; i < 7; i++) {
                    // make the regex if we don't have it already
                    mom = createUTC([2000, 1]).day(i);
                    minp = this.weekdaysMin(mom, '');
                    shortp = this.weekdaysShort(mom, '');
                    longp = this.weekdays(mom, '');
                    minPieces.push(minp);
                    shortPieces.push(shortp);
                    longPieces.push(longp);
                    mixedPieces.push(minp);
                    mixedPieces.push(shortp);
                    mixedPieces.push(longp);
                }
                // Sorting makes sure if one weekday (or abbr) is a prefix of another it
                // will match the longer piece.
                minPieces.sort(cmpLenRev);
                shortPieces.sort(cmpLenRev);
                longPieces.sort(cmpLenRev);
                mixedPieces.sort(cmpLenRev);
                for (i = 0; i < 7; i++) {
                    shortPieces[i] = regexEscape(shortPieces[i]);
                    longPieces[i] = regexEscape(longPieces[i]);
                    mixedPieces[i] = regexEscape(mixedPieces[i]);
                }

                this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
                this._weekdaysShortRegex = this._weekdaysRegex;
                this._weekdaysMinRegex = this._weekdaysRegex;

                this._weekdaysStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
                this._weekdaysShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
                this._weekdaysMinStrictRegex = new RegExp('^(' + minPieces.join('|') + ')', 'i');
            }

// FORMATTING

            function hFormat() {
                return this.hours() % 12 || 12;
            }

            function kFormat() {
                return this.hours() || 24;
            }

            addFormatToken('H', ['HH', 2], 0, 'hour');
            addFormatToken('h', ['hh', 2], 0, hFormat);
            addFormatToken('k', ['kk', 2], 0, kFormat);

            addFormatToken('hmm', 0, 0, function () {
                return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
            });

            addFormatToken('hmmss', 0, 0, function () {
                return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2) +
                    zeroFill(this.seconds(), 2);
            });

            addFormatToken('Hmm', 0, 0, function () {
                return '' + this.hours() + zeroFill(this.minutes(), 2);
            });

            addFormatToken('Hmmss', 0, 0, function () {
                return '' + this.hours() + zeroFill(this.minutes(), 2) +
                    zeroFill(this.seconds(), 2);
            });

            function meridiem (token, lowercase) {
                addFormatToken(token, 0, 0, function () {
                    return this.localeData().meridiem(this.hours(), this.minutes(), lowercase);
                });
            }

            meridiem('a', true);
            meridiem('A', false);

// ALIASES

            addUnitAlias('hour', 'h');

// PRIORITY
            addUnitPriority('hour', 13);

// PARSING

            function matchMeridiem (isStrict, locale) {
                return locale._meridiemParse;
            }

            addRegexToken('a',  matchMeridiem);
            addRegexToken('A',  matchMeridiem);
            addRegexToken('H',  match1to2);
            addRegexToken('h',  match1to2);
            addRegexToken('k',  match1to2);
            addRegexToken('HH', match1to2, match2);
            addRegexToken('hh', match1to2, match2);
            addRegexToken('kk', match1to2, match2);

            addRegexToken('hmm', match3to4);
            addRegexToken('hmmss', match5to6);
            addRegexToken('Hmm', match3to4);
            addRegexToken('Hmmss', match5to6);

            addParseToken(['H', 'HH'], HOUR);
            addParseToken(['k', 'kk'], function (input, array, config) {
                var kInput = toInt(input);
                array[HOUR] = kInput === 24 ? 0 : kInput;
            });
            addParseToken(['a', 'A'], function (input, array, config) {
                config._isPm = config._locale.isPM(input);
                config._meridiem = input;
            });
            addParseToken(['h', 'hh'], function (input, array, config) {
                array[HOUR] = toInt(input);
                getParsingFlags(config).bigHour = true;
            });
            addParseToken('hmm', function (input, array, config) {
                var pos = input.length - 2;
                array[HOUR] = toInt(input.substr(0, pos));
                array[MINUTE] = toInt(input.substr(pos));
                getParsingFlags(config).bigHour = true;
            });
            addParseToken('hmmss', function (input, array, config) {
                var pos1 = input.length - 4;
                var pos2 = input.length - 2;
                array[HOUR] = toInt(input.substr(0, pos1));
                array[MINUTE] = toInt(input.substr(pos1, 2));
                array[SECOND] = toInt(input.substr(pos2));
                getParsingFlags(config).bigHour = true;
            });
            addParseToken('Hmm', function (input, array, config) {
                var pos = input.length - 2;
                array[HOUR] = toInt(input.substr(0, pos));
                array[MINUTE] = toInt(input.substr(pos));
            });
            addParseToken('Hmmss', function (input, array, config) {
                var pos1 = input.length - 4;
                var pos2 = input.length - 2;
                array[HOUR] = toInt(input.substr(0, pos1));
                array[MINUTE] = toInt(input.substr(pos1, 2));
                array[SECOND] = toInt(input.substr(pos2));
            });

// LOCALES

            function localeIsPM (input) {
                // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
                // Using charAt should be more compatible.
                return ((input + '').toLowerCase().charAt(0) === 'p');
            }

            var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i;
            function localeMeridiem (hours, minutes, isLower) {
                if (hours > 11) {
                    return isLower ? 'pm' : 'PM';
                } else {
                    return isLower ? 'am' : 'AM';
                }
            }


// MOMENTS

// Setting the hour should keep the time, because the user explicitly
// specified which hour he wants. So trying to maintain the same hour (in
// a new timezone) makes sense. Adding/subtracting hours does not follow
// this rule.
            var getSetHour = makeGetSet('Hours', true);

// months
// week
// weekdays
// meridiem
            var baseConfig = {
                calendar: defaultCalendar,
                longDateFormat: defaultLongDateFormat,
                invalidDate: defaultInvalidDate,
                ordinal: defaultOrdinal,
                dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
                relativeTime: defaultRelativeTime,

                months: defaultLocaleMonths,
                monthsShort: defaultLocaleMonthsShort,

                week: defaultLocaleWeek,

                weekdays: defaultLocaleWeekdays,
                weekdaysMin: defaultLocaleWeekdaysMin,
                weekdaysShort: defaultLocaleWeekdaysShort,

                meridiemParse: defaultLocaleMeridiemParse
            };

// internal storage for locale config files
            var locales = {};
            var localeFamilies = {};
            var globalLocale;

            function normalizeLocale(key) {
                return key ? key.toLowerCase().replace('_', '-') : key;
            }

// pick the locale from the array
// try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
// substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
            function chooseLocale(names) {
                var i = 0, j, next, locale, split;

                while (i < names.length) {
                    split = normalizeLocale(names[i]).split('-');
                    j = split.length;
                    next = normalizeLocale(names[i + 1]);
                    next = next ? next.split('-') : null;
                    while (j > 0) {
                        locale = loadLocale(split.slice(0, j).join('-'));
                        if (locale) {
                            return locale;
                        }
                        if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
                            //the next array item is better than a shallower substring of this one
                            break;
                        }
                        j--;
                    }
                    i++;
                }
                return null;
            }

            function loadLocale(name) {
                var oldLocale = null;
                // TODO: Find a better way to register and load all the locales in Node
                if (!locales[name] && (typeof module !== 'undefined') &&
                    module && module.exports) {
                    try {
                        oldLocale = globalLocale._abbr;
                        var aliasedRequire = require;
                        aliasedRequire('./locale/' + name);
                        getSetGlobalLocale(oldLocale);
                    } catch (e) {}
                }
                return locales[name];
            }

// This function will load locale and then set the global locale.  If
// no arguments are passed in, it will simply return the current global
// locale key.
            function getSetGlobalLocale (key, values) {
                var data;
                if (key) {
                    if (isUndefined(values)) {
                        data = getLocale(key);
                    }
                    else {
                        data = defineLocale(key, values);
                    }

                    if (data) {
                        // moment.duration._locale = moment._locale = data;
                        globalLocale = data;
                    }
                }

                return globalLocale._abbr;
            }

            function defineLocale (name, config) {
                if (config !== null) {
                    var parentConfig = baseConfig;
                    config.abbr = name;
                    if (locales[name] != null) {
                        deprecateSimple('defineLocaleOverride',
                            'use moment.updateLocale(localeName, config) to change ' +
                            'an existing locale. moment.defineLocale(localeName, ' +
                            'config) should only be used for creating a new locale ' +
                            'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.');
                        parentConfig = locales[name]._config;
                    } else if (config.parentLocale != null) {
                        if (locales[config.parentLocale] != null) {
                            parentConfig = locales[config.parentLocale]._config;
                        } else {
                            if (!localeFamilies[config.parentLocale]) {
                                localeFamilies[config.parentLocale] = [];
                            }
                            localeFamilies[config.parentLocale].push({
                                name: name,
                                config: config
                            });
                            return null;
                        }
                    }
                    locales[name] = new Locale(mergeConfigs(parentConfig, config));

                    if (localeFamilies[name]) {
                        localeFamilies[name].forEach(function (x) {
                            defineLocale(x.name, x.config);
                        });
                    }

                    // backwards compat for now: also set the locale
                    // make sure we set the locale AFTER all child locales have been
                    // created, so we won't end up with the child locale set.
                    getSetGlobalLocale(name);


                    return locales[name];
                } else {
                    // useful for testing
                    delete locales[name];
                    return null;
                }
            }

            function updateLocale(name, config) {
                if (config != null) {
                    var locale, tmpLocale, parentConfig = baseConfig;
                    // MERGE
                    tmpLocale = loadLocale(name);
                    if (tmpLocale != null) {
                        parentConfig = tmpLocale._config;
                    }
                    config = mergeConfigs(parentConfig, config);
                    locale = new Locale(config);
                    locale.parentLocale = locales[name];
                    locales[name] = locale;

                    // backwards compat for now: also set the locale
                    getSetGlobalLocale(name);
                } else {
                    // pass null for config to unupdate, useful for tests
                    if (locales[name] != null) {
                        if (locales[name].parentLocale != null) {
                            locales[name] = locales[name].parentLocale;
                        } else if (locales[name] != null) {
                            delete locales[name];
                        }
                    }
                }
                return locales[name];
            }

// returns locale data
            function getLocale (key) {
                var locale;

                if (key && key._locale && key._locale._abbr) {
                    key = key._locale._abbr;
                }

                if (!key) {
                    return globalLocale;
                }

                if (!isArray(key)) {
                    //short-circuit everything else
                    locale = loadLocale(key);
                    if (locale) {
                        return locale;
                    }
                    key = [key];
                }

                return chooseLocale(key);
            }

            function listLocales() {
                return keys(locales);
            }

            function checkOverflow (m) {
                var overflow;
                var a = m._a;

                if (a && getParsingFlags(m).overflow === -2) {
                    overflow =
                        a[MONTH]       < 0 || a[MONTH]       > 11  ? MONTH :
                            a[DATE]        < 1 || a[DATE]        > daysInMonth(a[YEAR], a[MONTH]) ? DATE :
                                a[HOUR]        < 0 || a[HOUR]        > 24 || (a[HOUR] === 24 && (a[MINUTE] !== 0 || a[SECOND] !== 0 || a[MILLISECOND] !== 0)) ? HOUR :
                                    a[MINUTE]      < 0 || a[MINUTE]      > 59  ? MINUTE :
                                        a[SECOND]      < 0 || a[SECOND]      > 59  ? SECOND :
                                            a[MILLISECOND] < 0 || a[MILLISECOND] > 999 ? MILLISECOND :
                                                -1;

                    if (getParsingFlags(m)._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
                        overflow = DATE;
                    }
                    if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
                        overflow = WEEK;
                    }
                    if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
                        overflow = WEEKDAY;
                    }

                    getParsingFlags(m).overflow = overflow;
                }

                return m;
            }

// Pick the first defined of two or three arguments.
            function defaults(a, b, c) {
                if (a != null) {
                    return a;
                }
                if (b != null) {
                    return b;
                }
                return c;
            }

            function currentDateArray(config) {
                // hooks is actually the exported moment object
                var nowValue = new Date(hooks.now());
                if (config._useUTC) {
                    return [nowValue.getUTCFullYear(), nowValue.getUTCMonth(), nowValue.getUTCDate()];
                }
                return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
            }

// convert an array to a date.
// the array should mirror the parameters below
// note: all values past the year are optional and will default to the lowest possible value.
// [year, month, day , hour, minute, second, millisecond]
            function configFromArray (config) {
                var i, date, input = [], currentDate, expectedWeekday, yearToUse;

                if (config._d) {
                    return;
                }

                currentDate = currentDateArray(config);

                //compute day of the year from weeks and weekdays
                if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
                    dayOfYearFromWeekInfo(config);
                }

                //if the day of the year is set, figure out what it is
                if (config._dayOfYear != null) {
                    yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);

                    if (config._dayOfYear > daysInYear(yearToUse) || config._dayOfYear === 0) {
                        getParsingFlags(config)._overflowDayOfYear = true;
                    }

                    date = createUTCDate(yearToUse, 0, config._dayOfYear);
                    config._a[MONTH] = date.getUTCMonth();
                    config._a[DATE] = date.getUTCDate();
                }

                // Default to current date.
                // * if no year, month, day of month are given, default to today
                // * if day of month is given, default month and year
                // * if month is given, default only year
                // * if year is given, don't default anything
                for (i = 0; i < 3 && config._a[i] == null; ++i) {
                    config._a[i] = input[i] = currentDate[i];
                }

                // Zero out whatever was not defaulted, including time
                for (; i < 7; i++) {
                    config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
                }

                // Check for 24:00:00.000
                if (config._a[HOUR] === 24 &&
                    config._a[MINUTE] === 0 &&
                    config._a[SECOND] === 0 &&
                    config._a[MILLISECOND] === 0) {
                    config._nextDay = true;
                    config._a[HOUR] = 0;
                }

                config._d = (config._useUTC ? createUTCDate : createDate).apply(null, input);
                expectedWeekday = config._useUTC ? config._d.getUTCDay() : config._d.getDay();

                // Apply timezone offset from input. The actual utcOffset can be changed
                // with parseZone.
                if (config._tzm != null) {
                    config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
                }

                if (config._nextDay) {
                    config._a[HOUR] = 24;
                }

                // check for mismatching day of week
                if (config._w && typeof config._w.d !== 'undefined' && config._w.d !== expectedWeekday) {
                    getParsingFlags(config).weekdayMismatch = true;
                }
            }

            function dayOfYearFromWeekInfo(config) {
                var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow;

                w = config._w;
                if (w.GG != null || w.W != null || w.E != null) {
                    dow = 1;
                    doy = 4;

                    // TODO: We need to take the current isoWeekYear, but that depends on
                    // how we interpret now (local, utc, fixed offset). So create
                    // a now version of current config (take local/utc/offset flags, and
                    // create now).
                    weekYear = defaults(w.GG, config._a[YEAR], weekOfYear(createLocal(), 1, 4).year);
                    week = defaults(w.W, 1);
                    weekday = defaults(w.E, 1);
                    if (weekday < 1 || weekday > 7) {
                        weekdayOverflow = true;
                    }
                } else {
                    dow = config._locale._week.dow;
                    doy = config._locale._week.doy;

                    var curWeek = weekOfYear(createLocal(), dow, doy);

                    weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);

                    // Default to current week.
                    week = defaults(w.w, curWeek.week);

                    if (w.d != null) {
                        // weekday -- low day numbers are considered next week
                        weekday = w.d;
                        if (weekday < 0 || weekday > 6) {
                            weekdayOverflow = true;
                        }
                    } else if (w.e != null) {
                        // local weekday -- counting starts from begining of week
                        weekday = w.e + dow;
                        if (w.e < 0 || w.e > 6) {
                            weekdayOverflow = true;
                        }
                    } else {
                        // default to begining of week
                        weekday = dow;
                    }
                }
                if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
                    getParsingFlags(config)._overflowWeeks = true;
                } else if (weekdayOverflow != null) {
                    getParsingFlags(config)._overflowWeekday = true;
                } else {
                    temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
                    config._a[YEAR] = temp.year;
                    config._dayOfYear = temp.dayOfYear;
                }
            }

// iso 8601 regex
// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
            var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
            var basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;

            var tzRegex = /Z|[+-]\d\d(?::?\d\d)?/;

            var isoDates = [
                ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
                ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
                ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
                ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
                ['YYYY-DDD', /\d{4}-\d{3}/],
                ['YYYY-MM', /\d{4}-\d\d/, false],
                ['YYYYYYMMDD', /[+-]\d{10}/],
                ['YYYYMMDD', /\d{8}/],
                // YYYYMM is NOT allowed by the standard
                ['GGGG[W]WWE', /\d{4}W\d{3}/],
                ['GGGG[W]WW', /\d{4}W\d{2}/, false],
                ['YYYYDDD', /\d{7}/]
            ];

// iso time formats and regexes
            var isoTimes = [
                ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
                ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
                ['HH:mm:ss', /\d\d:\d\d:\d\d/],
                ['HH:mm', /\d\d:\d\d/],
                ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
                ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
                ['HHmmss', /\d\d\d\d\d\d/],
                ['HHmm', /\d\d\d\d/],
                ['HH', /\d\d/]
            ];

            var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;

// date from iso format
            function configFromISO(config) {
                var i, l,
                    string = config._i,
                    match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
                    allowTime, dateFormat, timeFormat, tzFormat;

                if (match) {
                    getParsingFlags(config).iso = true;

                    for (i = 0, l = isoDates.length; i < l; i++) {
                        if (isoDates[i][1].exec(match[1])) {
                            dateFormat = isoDates[i][0];
                            allowTime = isoDates[i][2] !== false;
                            break;
                        }
                    }
                    if (dateFormat == null) {
                        config._isValid = false;
                        return;
                    }
                    if (match[3]) {
                        for (i = 0, l = isoTimes.length; i < l; i++) {
                            if (isoTimes[i][1].exec(match[3])) {
                                // match[2] should be 'T' or space
                                timeFormat = (match[2] || ' ') + isoTimes[i][0];
                                break;
                            }
                        }
                        if (timeFormat == null) {
                            config._isValid = false;
                            return;
                        }
                    }
                    if (!allowTime && timeFormat != null) {
                        config._isValid = false;
                        return;
                    }
                    if (match[4]) {
                        if (tzRegex.exec(match[4])) {
                            tzFormat = 'Z';
                        } else {
                            config._isValid = false;
                            return;
                        }
                    }
                    config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
                    configFromStringAndFormat(config);
                } else {
                    config._isValid = false;
                }
            }

// RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
            var rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/;

            function extractFromRFC2822Strings(yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {
                var result = [
                    untruncateYear(yearStr),
                    defaultLocaleMonthsShort.indexOf(monthStr),
                    parseInt(dayStr, 10),
                    parseInt(hourStr, 10),
                    parseInt(minuteStr, 10)
                ];

                if (secondStr) {
                    result.push(parseInt(secondStr, 10));
                }

                return result;
            }

            function untruncateYear(yearStr) {
                var year = parseInt(yearStr, 10);
                if (year <= 49) {
                    return 2000 + year;
                } else if (year <= 999) {
                    return 1900 + year;
                }
                return year;
            }

            function preprocessRFC2822(s) {
                // Remove comments and folding whitespace and replace multiple-spaces with a single space
                return s.replace(/\([^)]*\)|[\n\t]/g, ' ').replace(/(\s\s+)/g, ' ').trim();
            }

            function checkWeekday(weekdayStr, parsedInput, config) {
                if (weekdayStr) {
                    // TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
                    var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
                        weekdayActual = new Date(parsedInput[0], parsedInput[1], parsedInput[2]).getDay();
                    if (weekdayProvided !== weekdayActual) {
                        getParsingFlags(config).weekdayMismatch = true;
                        config._isValid = false;
                        return false;
                    }
                }
                return true;
            }

            var obsOffsets = {
                UT: 0,
                GMT: 0,
                EDT: -4 * 60,
                EST: -5 * 60,
                CDT: -5 * 60,
                CST: -6 * 60,
                MDT: -6 * 60,
                MST: -7 * 60,
                PDT: -7 * 60,
                PST: -8 * 60
            };

            function calculateOffset(obsOffset, militaryOffset, numOffset) {
                if (obsOffset) {
                    return obsOffsets[obsOffset];
                } else if (militaryOffset) {
                    // the only allowed military tz is Z
                    return 0;
                } else {
                    var hm = parseInt(numOffset, 10);
                    var m = hm % 100, h = (hm - m) / 100;
                    return h * 60 + m;
                }
            }

// date and time from ref 2822 format
            function configFromRFC2822(config) {
                var match = rfc2822.exec(preprocessRFC2822(config._i));
                if (match) {
                    var parsedArray = extractFromRFC2822Strings(match[4], match[3], match[2], match[5], match[6], match[7]);
                    if (!checkWeekday(match[1], parsedArray, config)) {
                        return;
                    }

                    config._a = parsedArray;
                    config._tzm = calculateOffset(match[8], match[9], match[10]);

                    config._d = createUTCDate.apply(null, config._a);
                    config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);

                    getParsingFlags(config).rfc2822 = true;
                } else {
                    config._isValid = false;
                }
            }

// date from iso format or fallback
            function configFromString(config) {
                var matched = aspNetJsonRegex.exec(config._i);

                if (matched !== null) {
                    config._d = new Date(+matched[1]);
                    return;
                }

                configFromISO(config);
                if (config._isValid === false) {
                    delete config._isValid;
                } else {
                    return;
                }

                configFromRFC2822(config);
                if (config._isValid === false) {
                    delete config._isValid;
                } else {
                    return;
                }

                // Final attempt, use Input Fallback
                hooks.createFromInputFallback(config);
            }

            hooks.createFromInputFallback = deprecate(
                'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
                'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
                'discouraged and will be removed in an upcoming major release. Please refer to ' +
                'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
                function (config) {
                    config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
                }
            );

// constant that refers to the ISO standard
            hooks.ISO_8601 = function () {};

// constant that refers to the RFC 2822 form
            hooks.RFC_2822 = function () {};

// date from string and format string
            function configFromStringAndFormat(config) {
                // TODO: Move this to another part of the creation flow to prevent circular deps
                if (config._f === hooks.ISO_8601) {
                    configFromISO(config);
                    return;
                }
                if (config._f === hooks.RFC_2822) {
                    configFromRFC2822(config);
                    return;
                }
                config._a = [];
                getParsingFlags(config).empty = true;

                // This array is used to make a Date, either with `new Date` or `Date.UTC`
                var string = '' + config._i,
                    i, parsedInput, tokens, token, skipped,
                    stringLength = string.length,
                    totalParsedInputLength = 0;

                tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];

                for (i = 0; i < tokens.length; i++) {
                    token = tokens[i];
                    parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
                    // console.log('token', token, 'parsedInput', parsedInput,
                    //         'regex', getParseRegexForToken(token, config));
                    if (parsedInput) {
                        skipped = string.substr(0, string.indexOf(parsedInput));
                        if (skipped.length > 0) {
                            getParsingFlags(config).unusedInput.push(skipped);
                        }
                        string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
                        totalParsedInputLength += parsedInput.length;
                    }
                    // don't parse if it's not a known token
                    if (formatTokenFunctions[token]) {
                        if (parsedInput) {
                            getParsingFlags(config).empty = false;
                        }
                        else {
                            getParsingFlags(config).unusedTokens.push(token);
                        }
                        addTimeToArrayFromToken(token, parsedInput, config);
                    }
                    else if (config._strict && !parsedInput) {
                        getParsingFlags(config).unusedTokens.push(token);
                    }
                }

                // add remaining unparsed input length to the string
                getParsingFlags(config).charsLeftOver = stringLength - totalParsedInputLength;
                if (string.length > 0) {
                    getParsingFlags(config).unusedInput.push(string);
                }

                // clear _12h flag if hour is <= 12
                if (config._a[HOUR] <= 12 &&
                    getParsingFlags(config).bigHour === true &&
                    config._a[HOUR] > 0) {
                    getParsingFlags(config).bigHour = undefined;
                }

                getParsingFlags(config).parsedDateParts = config._a.slice(0);
                getParsingFlags(config).meridiem = config._meridiem;
                // handle meridiem
                config._a[HOUR] = meridiemFixWrap(config._locale, config._a[HOUR], config._meridiem);

                configFromArray(config);
                checkOverflow(config);
            }


            function meridiemFixWrap (locale, hour, meridiem) {
                var isPm;

                if (meridiem == null) {
                    // nothing to do
                    return hour;
                }
                if (locale.meridiemHour != null) {
                    return locale.meridiemHour(hour, meridiem);
                } else if (locale.isPM != null) {
                    // Fallback
                    isPm = locale.isPM(meridiem);
                    if (isPm && hour < 12) {
                        hour += 12;
                    }
                    if (!isPm && hour === 12) {
                        hour = 0;
                    }
                    return hour;
                } else {
                    // this is not supposed to happen
                    return hour;
                }
            }

// date from string and array of format strings
            function configFromStringAndArray(config) {
                var tempConfig,
                    bestMoment,

                    scoreToBeat,
                    i,
                    currentScore;

                if (config._f.length === 0) {
                    getParsingFlags(config).invalidFormat = true;
                    config._d = new Date(NaN);
                    return;
                }

                for (i = 0; i < config._f.length; i++) {
                    currentScore = 0;
                    tempConfig = copyConfig({}, config);
                    if (config._useUTC != null) {
                        tempConfig._useUTC = config._useUTC;
                    }
                    tempConfig._f = config._f[i];
                    configFromStringAndFormat(tempConfig);

                    if (!isValid(tempConfig)) {
                        continue;
                    }

                    // if there is any input that was not parsed add a penalty for that format
                    currentScore += getParsingFlags(tempConfig).charsLeftOver;

                    //or tokens
                    currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;

                    getParsingFlags(tempConfig).score = currentScore;

                    if (scoreToBeat == null || currentScore < scoreToBeat) {
                        scoreToBeat = currentScore;
                        bestMoment = tempConfig;
                    }
                }

                extend(config, bestMoment || tempConfig);
            }

            function configFromObject(config) {
                if (config._d) {
                    return;
                }

                var i = normalizeObjectUnits(config._i);
                config._a = map([i.year, i.month, i.day || i.date, i.hour, i.minute, i.second, i.millisecond], function (obj) {
                    return obj && parseInt(obj, 10);
                });

                configFromArray(config);
            }

            function createFromConfig (config) {
                var res = new Moment(checkOverflow(prepareConfig(config)));
                if (res._nextDay) {
                    // Adding is smart enough around DST
                    res.add(1, 'd');
                    res._nextDay = undefined;
                }

                return res;
            }

            function prepareConfig (config) {
                var input = config._i,
                    format = config._f;

                config._locale = config._locale || getLocale(config._l);

                if (input === null || (format === undefined && input === '')) {
                    return createInvalid({nullInput: true});
                }

                if (typeof input === 'string') {
                    config._i = input = config._locale.preparse(input);
                }

                if (isMoment(input)) {
                    return new Moment(checkOverflow(input));
                } else if (isDate(input)) {
                    config._d = input;
                } else if (isArray(format)) {
                    configFromStringAndArray(config);
                } else if (format) {
                    configFromStringAndFormat(config);
                }  else {
                    configFromInput(config);
                }

                if (!isValid(config)) {
                    config._d = null;
                }

                return config;
            }

            function configFromInput(config) {
                var input = config._i;
                if (isUndefined(input)) {
                    config._d = new Date(hooks.now());
                } else if (isDate(input)) {
                    config._d = new Date(input.valueOf());
                } else if (typeof input === 'string') {
                    configFromString(config);
                } else if (isArray(input)) {
                    config._a = map(input.slice(0), function (obj) {
                        return parseInt(obj, 10);
                    });
                    configFromArray(config);
                } else if (isObject(input)) {
                    configFromObject(config);
                } else if (isNumber(input)) {
                    // from milliseconds
                    config._d = new Date(input);
                } else {
                    hooks.createFromInputFallback(config);
                }
            }

            function createLocalOrUTC (input, format, locale, strict, isUTC) {
                var c = {};

                if (locale === true || locale === false) {
                    strict = locale;
                    locale = undefined;
                }

                if ((isObject(input) && isObjectEmpty(input)) ||
                    (isArray(input) && input.length === 0)) {
                    input = undefined;
                }
                // object construction must be done this way.
                // https://github.com/moment/moment/issues/1423
                c._isAMomentObject = true;
                c._useUTC = c._isUTC = isUTC;
                c._l = locale;
                c._i = input;
                c._f = format;
                c._strict = strict;

                return createFromConfig(c);
            }

            function createLocal (input, format, locale, strict) {
                return createLocalOrUTC(input, format, locale, strict, false);
            }

            var prototypeMin = deprecate(
                'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
                function () {
                    var other = createLocal.apply(null, arguments);
                    if (this.isValid() && other.isValid()) {
                        return other < this ? this : other;
                    } else {
                        return createInvalid();
                    }
                }
            );

            var prototypeMax = deprecate(
                'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
                function () {
                    var other = createLocal.apply(null, arguments);
                    if (this.isValid() && other.isValid()) {
                        return other > this ? this : other;
                    } else {
                        return createInvalid();
                    }
                }
            );

// Pick a moment m from moments so that m[fn](other) is true for all
// other. This relies on the function fn to be transitive.
//
// moments should either be an array of moment objects or an array, whose
// first element is an array of moment objects.
            function pickBy(fn, moments) {
                var res, i;
                if (moments.length === 1 && isArray(moments[0])) {
                    moments = moments[0];
                }
                if (!moments.length) {
                    return createLocal();
                }
                res = moments[0];
                for (i = 1; i < moments.length; ++i) {
                    if (!moments[i].isValid() || moments[i][fn](res)) {
                        res = moments[i];
                    }
                }
                return res;
            }

// TODO: Use [].sort instead?
            function min () {
                var args = [].slice.call(arguments, 0);

                return pickBy('isBefore', args);
            }

            function max () {
                var args = [].slice.call(arguments, 0);

                return pickBy('isAfter', args);
            }

            var now = function () {
                return Date.now ? Date.now() : +(new Date());
            };

            var ordering = ['year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond'];

            function isDurationValid(m) {
                for (var key in m) {
                    if (!(indexOf.call(ordering, key) !== -1 && (m[key] == null || !isNaN(m[key])))) {
                        return false;
                    }
                }

                var unitHasDecimal = false;
                for (var i = 0; i < ordering.length; ++i) {
                    if (m[ordering[i]]) {
                        if (unitHasDecimal) {
                            return false; // only allow non-integers for smallest unit
                        }
                        if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
                            unitHasDecimal = true;
                        }
                    }
                }

                return true;
            }

            function isValid$1() {
                return this._isValid;
            }

            function createInvalid$1() {
                return createDuration(NaN);
            }

            function Duration (duration) {
                var normalizedInput = normalizeObjectUnits(duration),
                    years = normalizedInput.year || 0,
                    quarters = normalizedInput.quarter || 0,
                    months = normalizedInput.month || 0,
                    weeks = normalizedInput.week || 0,
                    days = normalizedInput.day || 0,
                    hours = normalizedInput.hour || 0,
                    minutes = normalizedInput.minute || 0,
                    seconds = normalizedInput.second || 0,
                    milliseconds = normalizedInput.millisecond || 0;

                this._isValid = isDurationValid(normalizedInput);

                // representation for dateAddRemove
                this._milliseconds = +milliseconds +
                    seconds * 1e3 + // 1000
                    minutes * 6e4 + // 1000 * 60
                    hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
                // Because of dateAddRemove treats 24 hours as different from a
                // day when working around DST, we need to store them separately
                this._days = +days +
                    weeks * 7;
                // It is impossible to translate months into days without knowing
                // which months you are are talking about, so we have to store
                // it separately.
                this._months = +months +
                    quarters * 3 +
                    years * 12;

                this._data = {};

                this._locale = getLocale();

                this._bubble();
            }

            function isDuration (obj) {
                return obj instanceof Duration;
            }

            function absRound (number) {
                if (number < 0) {
                    return Math.round(-1 * number) * -1;
                } else {
                    return Math.round(number);
                }
            }

// FORMATTING

            function offset (token, separator) {
                addFormatToken(token, 0, 0, function () {
                    var offset = this.utcOffset();
                    var sign = '+';
                    if (offset < 0) {
                        offset = -offset;
                        sign = '-';
                    }
                    return sign + zeroFill(~~(offset / 60), 2) + separator + zeroFill(~~(offset) % 60, 2);
                });
            }

            offset('Z', ':');
            offset('ZZ', '');

// PARSING

            addRegexToken('Z',  matchShortOffset);
            addRegexToken('ZZ', matchShortOffset);
            addParseToken(['Z', 'ZZ'], function (input, array, config) {
                config._useUTC = true;
                config._tzm = offsetFromString(matchShortOffset, input);
            });

// HELPERS

// timezone chunker
// '+10:00' > ['10',  '00']
// '-1530'  > ['-15', '30']
            var chunkOffset = /([\+\-]|\d\d)/gi;

            function offsetFromString(matcher, string) {
                var matches = (string || '').match(matcher);

                if (matches === null) {
                    return null;
                }

                var chunk   = matches[matches.length - 1] || [];
                var parts   = (chunk + '').match(chunkOffset) || ['-', 0, 0];
                var minutes = +(parts[1] * 60) + toInt(parts[2]);

                return minutes === 0 ?
                    0 :
                    parts[0] === '+' ? minutes : -minutes;
            }

// Return a moment from input, that is local/utc/zone equivalent to model.
            function cloneWithOffset(input, model) {
                var res, diff;
                if (model._isUTC) {
                    res = model.clone();
                    diff = (isMoment(input) || isDate(input) ? input.valueOf() : createLocal(input).valueOf()) - res.valueOf();
                    // Use low-level api, because this fn is low-level api.
                    res._d.setTime(res._d.valueOf() + diff);
                    hooks.updateOffset(res, false);
                    return res;
                } else {
                    return createLocal(input).local();
                }
            }

            function getDateOffset (m) {
                // On Firefox.24 Date#getTimezoneOffset returns a floating point.
                // https://github.com/moment/moment/pull/1871
                return -Math.round(m._d.getTimezoneOffset() / 15) * 15;
            }

// HOOKS

// This function will be called whenever a moment is mutated.
// It is intended to keep the offset in sync with the timezone.
            hooks.updateOffset = function () {};

// MOMENTS

// keepLocalTime = true means only change the timezone, without
// affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
// 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
// +0200, so we adjust the time as needed, to be valid.
//
// Keeping the time actually adds/subtracts (one hour)
// from the actual represented time. That is why we call updateOffset
// a second time. In case it wants us to change the offset again
// _changeInProgress == true case, then we have to adjust, because
// there is no such time in the given timezone.
            function getSetOffset (input, keepLocalTime, keepMinutes) {
                var offset = this._offset || 0,
                    localAdjust;
                if (!this.isValid()) {
                    return input != null ? this : NaN;
                }
                if (input != null) {
                    if (typeof input === 'string') {
                        input = offsetFromString(matchShortOffset, input);
                        if (input === null) {
                            return this;
                        }
                    } else if (Math.abs(input) < 16 && !keepMinutes) {
                        input = input * 60;
                    }
                    if (!this._isUTC && keepLocalTime) {
                        localAdjust = getDateOffset(this);
                    }
                    this._offset = input;
                    this._isUTC = true;
                    if (localAdjust != null) {
                        this.add(localAdjust, 'm');
                    }
                    if (offset !== input) {
                        if (!keepLocalTime || this._changeInProgress) {
                            addSubtract(this, createDuration(input - offset, 'm'), 1, false);
                        } else if (!this._changeInProgress) {
                            this._changeInProgress = true;
                            hooks.updateOffset(this, true);
                            this._changeInProgress = null;
                        }
                    }
                    return this;
                } else {
                    return this._isUTC ? offset : getDateOffset(this);
                }
            }

            function getSetZone (input, keepLocalTime) {
                if (input != null) {
                    if (typeof input !== 'string') {
                        input = -input;
                    }

                    this.utcOffset(input, keepLocalTime);

                    return this;
                } else {
                    return -this.utcOffset();
                }
            }

            function setOffsetToUTC (keepLocalTime) {
                return this.utcOffset(0, keepLocalTime);
            }

            function setOffsetToLocal (keepLocalTime) {
                if (this._isUTC) {
                    this.utcOffset(0, keepLocalTime);
                    this._isUTC = false;

                    if (keepLocalTime) {
                        this.subtract(getDateOffset(this), 'm');
                    }
                }
                return this;
            }

            function setOffsetToParsedOffset () {
                if (this._tzm != null) {
                    this.utcOffset(this._tzm, false, true);
                } else if (typeof this._i === 'string') {
                    var tZone = offsetFromString(matchOffset, this._i);
                    if (tZone != null) {
                        this.utcOffset(tZone);
                    }
                    else {
                        this.utcOffset(0, true);
                    }
                }
                return this;
            }

            function hasAlignedHourOffset (input) {
                if (!this.isValid()) {
                    return false;
                }
                input = input ? createLocal(input).utcOffset() : 0;

                return (this.utcOffset() - input) % 60 === 0;
            }

            function isDaylightSavingTime () {
                return (
                    this.utcOffset() > this.clone().month(0).utcOffset() ||
                    this.utcOffset() > this.clone().month(5).utcOffset()
                );
            }

            function isDaylightSavingTimeShifted () {
                if (!isUndefined(this._isDSTShifted)) {
                    return this._isDSTShifted;
                }

                var c = {};

                copyConfig(c, this);
                c = prepareConfig(c);

                if (c._a) {
                    var other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
                    this._isDSTShifted = this.isValid() &&
                        compareArrays(c._a, other.toArray()) > 0;
                } else {
                    this._isDSTShifted = false;
                }

                return this._isDSTShifted;
            }

            function isLocal () {
                return this.isValid() ? !this._isUTC : false;
            }

            function isUtcOffset () {
                return this.isValid() ? this._isUTC : false;
            }

            function isUtc () {
                return this.isValid() ? this._isUTC && this._offset === 0 : false;
            }

// ASP.NET json date format regex
            var aspNetRegex = /^(\-|\+)?(?:(\d*)[. ])?(\d+)\:(\d+)(?:\:(\d+)(\.\d*)?)?$/;

// from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
// somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
// and further modified to allow for strings containing both week and day
            var isoRegex = /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;

            function createDuration (input, key) {
                var duration = input,
                    // matching against regexp is expensive, do it on demand
                    match = null,
                    sign,
                    ret,
                    diffRes;

                if (isDuration(input)) {
                    duration = {
                        ms : input._milliseconds,
                        d  : input._days,
                        M  : input._months
                    };
                } else if (isNumber(input)) {
                    duration = {};
                    if (key) {
                        duration[key] = input;
                    } else {
                        duration.milliseconds = input;
                    }
                } else if (!!(match = aspNetRegex.exec(input))) {
                    sign = (match[1] === '-') ? -1 : 1;
                    duration = {
                        y  : 0,
                        d  : toInt(match[DATE])                         * sign,
                        h  : toInt(match[HOUR])                         * sign,
                        m  : toInt(match[MINUTE])                       * sign,
                        s  : toInt(match[SECOND])                       * sign,
                        ms : toInt(absRound(match[MILLISECOND] * 1000)) * sign // the millisecond decimal point is included in the match
                    };
                } else if (!!(match = isoRegex.exec(input))) {
                    sign = (match[1] === '-') ? -1 : (match[1] === '+') ? 1 : 1;
                    duration = {
                        y : parseIso(match[2], sign),
                        M : parseIso(match[3], sign),
                        w : parseIso(match[4], sign),
                        d : parseIso(match[5], sign),
                        h : parseIso(match[6], sign),
                        m : parseIso(match[7], sign),
                        s : parseIso(match[8], sign)
                    };
                } else if (duration == null) {// checks for null or undefined
                    duration = {};
                } else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) {
                    diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to));

                    duration = {};
                    duration.ms = diffRes.milliseconds;
                    duration.M = diffRes.months;
                }

                ret = new Duration(duration);

                if (isDuration(input) && hasOwnProp(input, '_locale')) {
                    ret._locale = input._locale;
                }

                return ret;
            }

            createDuration.fn = Duration.prototype;
            createDuration.invalid = createInvalid$1;

            function parseIso (inp, sign) {
                // We'd normally use ~~inp for this, but unfortunately it also
                // converts floats to ints.
                // inp may be undefined, so careful calling replace on it.
                var res = inp && parseFloat(inp.replace(',', '.'));
                // apply sign while we're at it
                return (isNaN(res) ? 0 : res) * sign;
            }

            function positiveMomentsDifference(base, other) {
                var res = {milliseconds: 0, months: 0};

                res.months = other.month() - base.month() +
                    (other.year() - base.year()) * 12;
                if (base.clone().add(res.months, 'M').isAfter(other)) {
                    --res.months;
                }

                res.milliseconds = +other - +(base.clone().add(res.months, 'M'));

                return res;
            }

            function momentsDifference(base, other) {
                var res;
                if (!(base.isValid() && other.isValid())) {
                    return {milliseconds: 0, months: 0};
                }

                other = cloneWithOffset(other, base);
                if (base.isBefore(other)) {
                    res = positiveMomentsDifference(base, other);
                } else {
                    res = positiveMomentsDifference(other, base);
                    res.milliseconds = -res.milliseconds;
                    res.months = -res.months;
                }

                return res;
            }

// TODO: remove 'name' arg after deprecation is removed
            function createAdder(direction, name) {
                return function (val, period) {
                    var dur, tmp;
                    //invert the arguments, but complain about it
                    if (period !== null && !isNaN(+period)) {
                        deprecateSimple(name, 'moment().' + name  + '(period, number) is deprecated. Please use moment().' + name + '(number, period). ' +
                            'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.');
                        tmp = val; val = period; period = tmp;
                    }

                    val = typeof val === 'string' ? +val : val;
                    dur = createDuration(val, period);
                    addSubtract(this, dur, direction);
                    return this;
                };
            }

            function addSubtract (mom, duration, isAdding, updateOffset) {
                var milliseconds = duration._milliseconds,
                    days = absRound(duration._days),
                    months = absRound(duration._months);

                if (!mom.isValid()) {
                    // No op
                    return;
                }

                updateOffset = updateOffset == null ? true : updateOffset;

                if (months) {
                    setMonth(mom, get(mom, 'Month') + months * isAdding);
                }
                if (days) {
                    set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
                }
                if (milliseconds) {
                    mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
                }
                if (updateOffset) {
                    hooks.updateOffset(mom, days || months);
                }
            }

            var add      = createAdder(1, 'add');
            var subtract = createAdder(-1, 'subtract');

            function getCalendarFormat(myMoment, now) {
                var diff = myMoment.diff(now, 'days', true);
                return diff < -6 ? 'sameElse' :
                    diff < -1 ? 'lastWeek' :
                        diff < 0 ? 'lastDay' :
                            diff < 1 ? 'sameDay' :
                                diff < 2 ? 'nextDay' :
                                    diff < 7 ? 'nextWeek' : 'sameElse';
            }

            function calendar$1 (time, formats) {
                // We want to compare the start of today, vs this.
                // Getting start-of-today depends on whether we're local/utc/offset or not.
                var now = time || createLocal(),
                    sod = cloneWithOffset(now, this).startOf('day'),
                    format = hooks.calendarFormat(this, sod) || 'sameElse';

                var output = formats && (isFunction(formats[format]) ? formats[format].call(this, now) : formats[format]);

                return this.format(output || this.localeData().calendar(format, this, createLocal(now)));
            }

            function clone () {
                return new Moment(this);
            }

            function isAfter (input, units) {
                var localInput = isMoment(input) ? input : createLocal(input);
                if (!(this.isValid() && localInput.isValid())) {
                    return false;
                }
                units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
                if (units === 'millisecond') {
                    return this.valueOf() > localInput.valueOf();
                } else {
                    return localInput.valueOf() < this.clone().startOf(units).valueOf();
                }
            }

            function isBefore (input, units) {
                var localInput = isMoment(input) ? input : createLocal(input);
                if (!(this.isValid() && localInput.isValid())) {
                    return false;
                }
                units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
                if (units === 'millisecond') {
                    return this.valueOf() < localInput.valueOf();
                } else {
                    return this.clone().endOf(units).valueOf() < localInput.valueOf();
                }
            }

            function isBetween (from, to, units, inclusivity) {
                inclusivity = inclusivity || '()';
                return (inclusivity[0] === '(' ? this.isAfter(from, units) : !this.isBefore(from, units)) &&
                    (inclusivity[1] === ')' ? this.isBefore(to, units) : !this.isAfter(to, units));
            }

            function isSame (input, units) {
                var localInput = isMoment(input) ? input : createLocal(input),
                    inputMs;
                if (!(this.isValid() && localInput.isValid())) {
                    return false;
                }
                units = normalizeUnits(units || 'millisecond');
                if (units === 'millisecond') {
                    return this.valueOf() === localInput.valueOf();
                } else {
                    inputMs = localInput.valueOf();
                    return this.clone().startOf(units).valueOf() <= inputMs && inputMs <= this.clone().endOf(units).valueOf();
                }
            }

            function isSameOrAfter (input, units) {
                return this.isSame(input, units) || this.isAfter(input,units);
            }

            function isSameOrBefore (input, units) {
                return this.isSame(input, units) || this.isBefore(input,units);
            }

            function diff (input, units, asFloat) {
                var that,
                    zoneDelta,
                    delta, output;

                if (!this.isValid()) {
                    return NaN;
                }

                that = cloneWithOffset(input, this);

                if (!that.isValid()) {
                    return NaN;
                }

                zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;

                units = normalizeUnits(units);

                switch (units) {
                    case 'year': output = monthDiff(this, that) / 12; break;
                    case 'month': output = monthDiff(this, that); break;
                    case 'quarter': output = monthDiff(this, that) / 3; break;
                    case 'second': output = (this - that) / 1e3; break; // 1000
                    case 'minute': output = (this - that) / 6e4; break; // 1000 * 60
                    case 'hour': output = (this - that) / 36e5; break; // 1000 * 60 * 60
                    case 'day': output = (this - that - zoneDelta) / 864e5; break; // 1000 * 60 * 60 * 24, negate dst
                    case 'week': output = (this - that - zoneDelta) / 6048e5; break; // 1000 * 60 * 60 * 24 * 7, negate dst
                    default: output = this - that;
                }

                return asFloat ? output : absFloor(output);
            }

            function monthDiff (a, b) {
                // difference in months
                var wholeMonthDiff = ((b.year() - a.year()) * 12) + (b.month() - a.month()),
                    // b is in (anchor - 1 month, anchor + 1 month)
                    anchor = a.clone().add(wholeMonthDiff, 'months'),
                    anchor2, adjust;

                if (b - anchor < 0) {
                    anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
                    // linear across the month
                    adjust = (b - anchor) / (anchor - anchor2);
                } else {
                    anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
                    // linear across the month
                    adjust = (b - anchor) / (anchor2 - anchor);
                }

                //check for negative zero, return zero if negative zero
                return -(wholeMonthDiff + adjust) || 0;
            }

            hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
            hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';

            function toString () {
                return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
            }

            function toISOString(keepOffset) {
                if (!this.isValid()) {
                    return null;
                }
                var utc = keepOffset !== true;
                var m = utc ? this.clone().utc() : this;
                if (m.year() < 0 || m.year() > 9999) {
                    return formatMoment(m, utc ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ');
                }
                if (isFunction(Date.prototype.toISOString)) {
                    // native implementation is ~50x faster, use it when we can
                    if (utc) {
                        return this.toDate().toISOString();
                    } else {
                        return new Date(this._d.valueOf()).toISOString().replace('Z', formatMoment(m, 'Z'));
                    }
                }
                return formatMoment(m, utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ');
            }

            /**
             * Return a human readable representation of a moment that can
             * also be evaluated to get a new moment which is the same
             *
             * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
             */
            function inspect () {
                if (!this.isValid()) {
                    return 'moment.invalid(/* ' + this._i + ' */)';
                }
                var func = 'moment';
                var zone = '';
                if (!this.isLocal()) {
                    func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
                    zone = 'Z';
                }
                var prefix = '[' + func + '("]';
                var year = (0 <= this.year() && this.year() <= 9999) ? 'YYYY' : 'YYYYYY';
                var datetime = '-MM-DD[T]HH:mm:ss.SSS';
                var suffix = zone + '[")]';

                return this.format(prefix + year + datetime + suffix);
            }

            function format (inputString) {
                if (!inputString) {
                    inputString = this.isUtc() ? hooks.defaultFormatUtc : hooks.defaultFormat;
                }
                var output = formatMoment(this, inputString);
                return this.localeData().postformat(output);
            }

            function from (time, withoutSuffix) {
                if (this.isValid() &&
                    ((isMoment(time) && time.isValid()) ||
                        createLocal(time).isValid())) {
                    return createDuration({to: this, from: time}).locale(this.locale()).humanize(!withoutSuffix);
                } else {
                    return this.localeData().invalidDate();
                }
            }

            function fromNow (withoutSuffix) {
                return this.from(createLocal(), withoutSuffix);
            }

            function to (time, withoutSuffix) {
                if (this.isValid() &&
                    ((isMoment(time) && time.isValid()) ||
                        createLocal(time).isValid())) {
                    return createDuration({from: this, to: time}).locale(this.locale()).humanize(!withoutSuffix);
                } else {
                    return this.localeData().invalidDate();
                }
            }

            function toNow (withoutSuffix) {
                return this.to(createLocal(), withoutSuffix);
            }

// If passed a locale key, it will set the locale for this
// instance.  Otherwise, it will return the locale configuration
// variables for this instance.
            function locale (key) {
                var newLocaleData;

                if (key === undefined) {
                    return this._locale._abbr;
                } else {
                    newLocaleData = getLocale(key);
                    if (newLocaleData != null) {
                        this._locale = newLocaleData;
                    }
                    return this;
                }
            }

            var lang = deprecate(
                'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
                function (key) {
                    if (key === undefined) {
                        return this.localeData();
                    } else {
                        return this.locale(key);
                    }
                }
            );

            function localeData () {
                return this._locale;
            }

            function startOf (units) {
                units = normalizeUnits(units);
                // the following switch intentionally omits break keywords
                // to utilize falling through the cases.
                switch (units) {
                    case 'year':
                        this.month(0);
                    /* falls through */
                    case 'quarter':
                    case 'month':
                        this.date(1);
                    /* falls through */
                    case 'week':
                    case 'isoWeek':
                    case 'day':
                    case 'date':
                        this.hours(0);
                    /* falls through */
                    case 'hour':
                        this.minutes(0);
                    /* falls through */
                    case 'minute':
                        this.seconds(0);
                    /* falls through */
                    case 'second':
                        this.milliseconds(0);
                }

                // weeks are a special case
                if (units === 'week') {
                    this.weekday(0);
                }
                if (units === 'isoWeek') {
                    this.isoWeekday(1);
                }

                // quarters are also special
                if (units === 'quarter') {
                    this.month(Math.floor(this.month() / 3) * 3);
                }

                return this;
            }

            function endOf (units) {
                units = normalizeUnits(units);
                if (units === undefined || units === 'millisecond') {
                    return this;
                }

                // 'date' is an alias for 'day', so it should be considered as such.
                if (units === 'date') {
                    units = 'day';
                }

                return this.startOf(units).add(1, (units === 'isoWeek' ? 'week' : units)).subtract(1, 'ms');
            }

            function valueOf () {
                return this._d.valueOf() - ((this._offset || 0) * 60000);
            }

            function unix () {
                return Math.floor(this.valueOf() / 1000);
            }

            function toDate () {
                return new Date(this.valueOf());
            }

            function toArray () {
                var m = this;
                return [m.year(), m.month(), m.date(), m.hour(), m.minute(), m.second(), m.millisecond()];
            }

            function toObject () {
                var m = this;
                return {
                    years: m.year(),
                    months: m.month(),
                    date: m.date(),
                    hours: m.hours(),
                    minutes: m.minutes(),
                    seconds: m.seconds(),
                    milliseconds: m.milliseconds()
                };
            }

            function toJSON () {
                // new Date(NaN).toJSON() === null
                return this.isValid() ? this.toISOString() : null;
            }

            function isValid$2 () {
                return isValid(this);
            }

            function parsingFlags () {
                return extend({}, getParsingFlags(this));
            }

            function invalidAt () {
                return getParsingFlags(this).overflow;
            }

            function creationData() {
                return {
                    input: this._i,
                    format: this._f,
                    locale: this._locale,
                    isUTC: this._isUTC,
                    strict: this._strict
                };
            }

// FORMATTING

            addFormatToken(0, ['gg', 2], 0, function () {
                return this.weekYear() % 100;
            });

            addFormatToken(0, ['GG', 2], 0, function () {
                return this.isoWeekYear() % 100;
            });

            function addWeekYearFormatToken (token, getter) {
                addFormatToken(0, [token, token.length], 0, getter);
            }

            addWeekYearFormatToken('gggg',     'weekYear');
            addWeekYearFormatToken('ggggg',    'weekYear');
            addWeekYearFormatToken('GGGG',  'isoWeekYear');
            addWeekYearFormatToken('GGGGG', 'isoWeekYear');

// ALIASES

            addUnitAlias('weekYear', 'gg');
            addUnitAlias('isoWeekYear', 'GG');

// PRIORITY

            addUnitPriority('weekYear', 1);
            addUnitPriority('isoWeekYear', 1);


// PARSING

            addRegexToken('G',      matchSigned);
            addRegexToken('g',      matchSigned);
            addRegexToken('GG',     match1to2, match2);
            addRegexToken('gg',     match1to2, match2);
            addRegexToken('GGGG',   match1to4, match4);
            addRegexToken('gggg',   match1to4, match4);
            addRegexToken('GGGGG',  match1to6, match6);
            addRegexToken('ggggg',  match1to6, match6);

            addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
                week[token.substr(0, 2)] = toInt(input);
            });

            addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
                week[token] = hooks.parseTwoDigitYear(input);
            });

// MOMENTS

            function getSetWeekYear (input) {
                return getSetWeekYearHelper.call(this,
                    input,
                    this.week(),
                    this.weekday(),
                    this.localeData()._week.dow,
                    this.localeData()._week.doy);
            }

            function getSetISOWeekYear (input) {
                return getSetWeekYearHelper.call(this,
                    input, this.isoWeek(), this.isoWeekday(), 1, 4);
            }

            function getISOWeeksInYear () {
                return weeksInYear(this.year(), 1, 4);
            }

            function getWeeksInYear () {
                var weekInfo = this.localeData()._week;
                return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
            }

            function getSetWeekYearHelper(input, week, weekday, dow, doy) {
                var weeksTarget;
                if (input == null) {
                    return weekOfYear(this, dow, doy).year;
                } else {
                    weeksTarget = weeksInYear(input, dow, doy);
                    if (week > weeksTarget) {
                        week = weeksTarget;
                    }
                    return setWeekAll.call(this, input, week, weekday, dow, doy);
                }
            }

            function setWeekAll(weekYear, week, weekday, dow, doy) {
                var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
                    date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);

                this.year(date.getUTCFullYear());
                this.month(date.getUTCMonth());
                this.date(date.getUTCDate());
                return this;
            }

// FORMATTING

            addFormatToken('Q', 0, 'Qo', 'quarter');

// ALIASES

            addUnitAlias('quarter', 'Q');

// PRIORITY

            addUnitPriority('quarter', 7);

// PARSING

            addRegexToken('Q', match1);
            addParseToken('Q', function (input, array) {
                array[MONTH] = (toInt(input) - 1) * 3;
            });

// MOMENTS

            function getSetQuarter (input) {
                return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
            }

// FORMATTING

            addFormatToken('D', ['DD', 2], 'Do', 'date');

// ALIASES

            addUnitAlias('date', 'D');

// PRIOROITY
            addUnitPriority('date', 9);

// PARSING

            addRegexToken('D',  match1to2);
            addRegexToken('DD', match1to2, match2);
            addRegexToken('Do', function (isStrict, locale) {
                // TODO: Remove "ordinalParse" fallback in next major release.
                return isStrict ?
                    (locale._dayOfMonthOrdinalParse || locale._ordinalParse) :
                    locale._dayOfMonthOrdinalParseLenient;
            });

            addParseToken(['D', 'DD'], DATE);
            addParseToken('Do', function (input, array) {
                array[DATE] = toInt(input.match(match1to2)[0]);
            });

// MOMENTS

            var getSetDayOfMonth = makeGetSet('Date', true);

// FORMATTING

            addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');

// ALIASES

            addUnitAlias('dayOfYear', 'DDD');

// PRIORITY
            addUnitPriority('dayOfYear', 4);

// PARSING

            addRegexToken('DDD',  match1to3);
            addRegexToken('DDDD', match3);
            addParseToken(['DDD', 'DDDD'], function (input, array, config) {
                config._dayOfYear = toInt(input);
            });

// HELPERS

// MOMENTS

            function getSetDayOfYear (input) {
                var dayOfYear = Math.round((this.clone().startOf('day') - this.clone().startOf('year')) / 864e5) + 1;
                return input == null ? dayOfYear : this.add((input - dayOfYear), 'd');
            }

// FORMATTING

            addFormatToken('m', ['mm', 2], 0, 'minute');

// ALIASES

            addUnitAlias('minute', 'm');

// PRIORITY

            addUnitPriority('minute', 14);

// PARSING

            addRegexToken('m',  match1to2);
            addRegexToken('mm', match1to2, match2);
            addParseToken(['m', 'mm'], MINUTE);

// MOMENTS

            var getSetMinute = makeGetSet('Minutes', false);

// FORMATTING

            addFormatToken('s', ['ss', 2], 0, 'second');

// ALIASES

            addUnitAlias('second', 's');

// PRIORITY

            addUnitPriority('second', 15);

// PARSING

            addRegexToken('s',  match1to2);
            addRegexToken('ss', match1to2, match2);
            addParseToken(['s', 'ss'], SECOND);

// MOMENTS

            var getSetSecond = makeGetSet('Seconds', false);

// FORMATTING

            addFormatToken('S', 0, 0, function () {
                return ~~(this.millisecond() / 100);
            });

            addFormatToken(0, ['SS', 2], 0, function () {
                return ~~(this.millisecond() / 10);
            });

            addFormatToken(0, ['SSS', 3], 0, 'millisecond');
            addFormatToken(0, ['SSSS', 4], 0, function () {
                return this.millisecond() * 10;
            });
            addFormatToken(0, ['SSSSS', 5], 0, function () {
                return this.millisecond() * 100;
            });
            addFormatToken(0, ['SSSSSS', 6], 0, function () {
                return this.millisecond() * 1000;
            });
            addFormatToken(0, ['SSSSSSS', 7], 0, function () {
                return this.millisecond() * 10000;
            });
            addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
                return this.millisecond() * 100000;
            });
            addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
                return this.millisecond() * 1000000;
            });


// ALIASES

            addUnitAlias('millisecond', 'ms');

// PRIORITY

            addUnitPriority('millisecond', 16);

// PARSING

            addRegexToken('S',    match1to3, match1);
            addRegexToken('SS',   match1to3, match2);
            addRegexToken('SSS',  match1to3, match3);

            var token;
            for (token = 'SSSS'; token.length <= 9; token += 'S') {
                addRegexToken(token, matchUnsigned);
            }

            function parseMs(input, array) {
                array[MILLISECOND] = toInt(('0.' + input) * 1000);
            }

            for (token = 'S'; token.length <= 9; token += 'S') {
                addParseToken(token, parseMs);
            }
// MOMENTS

            var getSetMillisecond = makeGetSet('Milliseconds', false);

// FORMATTING

            addFormatToken('z',  0, 0, 'zoneAbbr');
            addFormatToken('zz', 0, 0, 'zoneName');

// MOMENTS

            function getZoneAbbr () {
                return this._isUTC ? 'UTC' : '';
            }

            function getZoneName () {
                return this._isUTC ? 'Coordinated Universal Time' : '';
            }

            var proto = Moment.prototype;

            proto.add               = add;
            proto.calendar          = calendar$1;
            proto.clone             = clone;
            proto.diff              = diff;
            proto.endOf             = endOf;
            proto.format            = format;
            proto.from              = from;
            proto.fromNow           = fromNow;
            proto.to                = to;
            proto.toNow             = toNow;
            proto.get               = stringGet;
            proto.invalidAt         = invalidAt;
            proto.isAfter           = isAfter;
            proto.isBefore          = isBefore;
            proto.isBetween         = isBetween;
            proto.isSame            = isSame;
            proto.isSameOrAfter     = isSameOrAfter;
            proto.isSameOrBefore    = isSameOrBefore;
            proto.isValid           = isValid$2;
            proto.lang              = lang;
            proto.locale            = locale;
            proto.localeData        = localeData;
            proto.max               = prototypeMax;
            proto.min               = prototypeMin;
            proto.parsingFlags      = parsingFlags;
            proto.set               = stringSet;
            proto.startOf           = startOf;
            proto.subtract          = subtract;
            proto.toArray           = toArray;
            proto.toObject          = toObject;
            proto.toDate            = toDate;
            proto.toISOString       = toISOString;
            proto.inspect           = inspect;
            proto.toJSON            = toJSON;
            proto.toString          = toString;
            proto.unix              = unix;
            proto.valueOf           = valueOf;
            proto.creationData      = creationData;

// Year
            proto.year       = getSetYear;
            proto.isLeapYear = getIsLeapYear;

// Week Year
            proto.weekYear    = getSetWeekYear;
            proto.isoWeekYear = getSetISOWeekYear;

// Quarter
            proto.quarter = proto.quarters = getSetQuarter;

// Month
            proto.month       = getSetMonth;
            proto.daysInMonth = getDaysInMonth;

// Week
            proto.week           = proto.weeks        = getSetWeek;
            proto.isoWeek        = proto.isoWeeks     = getSetISOWeek;
            proto.weeksInYear    = getWeeksInYear;
            proto.isoWeeksInYear = getISOWeeksInYear;

// Day
            proto.date       = getSetDayOfMonth;
            proto.day        = proto.days             = getSetDayOfWeek;
            proto.weekday    = getSetLocaleDayOfWeek;
            proto.isoWeekday = getSetISODayOfWeek;
            proto.dayOfYear  = getSetDayOfYear;

// Hour
            proto.hour = proto.hours = getSetHour;

// Minute
            proto.minute = proto.minutes = getSetMinute;

// Second
            proto.second = proto.seconds = getSetSecond;

// Millisecond
            proto.millisecond = proto.milliseconds = getSetMillisecond;

// Offset
            proto.utcOffset            = getSetOffset;
            proto.utc                  = setOffsetToUTC;
            proto.local                = setOffsetToLocal;
            proto.parseZone            = setOffsetToParsedOffset;
            proto.hasAlignedHourOffset = hasAlignedHourOffset;
            proto.isDST                = isDaylightSavingTime;
            proto.isLocal              = isLocal;
            proto.isUtcOffset          = isUtcOffset;
            proto.isUtc                = isUtc;
            proto.isUTC                = isUtc;

// Timezone
            proto.zoneAbbr = getZoneAbbr;
            proto.zoneName = getZoneName;

// Deprecations
            proto.dates  = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth);
            proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth);
            proto.years  = deprecate('years accessor is deprecated. Use year instead', getSetYear);
            proto.zone   = deprecate('moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/', getSetZone);
            proto.isDSTShifted = deprecate('isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information', isDaylightSavingTimeShifted);

            function createUnix (input) {
                return createLocal(input * 1000);
            }

            function createInZone () {
                return createLocal.apply(null, arguments).parseZone();
            }

            function preParsePostFormat (string) {
                return string;
            }

            var proto$1 = Locale.prototype;

            proto$1.calendar        = calendar;
            proto$1.longDateFormat  = longDateFormat;
            proto$1.invalidDate     = invalidDate;
            proto$1.ordinal         = ordinal;
            proto$1.preparse        = preParsePostFormat;
            proto$1.postformat      = preParsePostFormat;
            proto$1.relativeTime    = relativeTime;
            proto$1.pastFuture      = pastFuture;
            proto$1.set             = set;

// Month
            proto$1.months            =        localeMonths;
            proto$1.monthsShort       =        localeMonthsShort;
            proto$1.monthsParse       =        localeMonthsParse;
            proto$1.monthsRegex       = monthsRegex;
            proto$1.monthsShortRegex  = monthsShortRegex;

// Week
            proto$1.week = localeWeek;
            proto$1.firstDayOfYear = localeFirstDayOfYear;
            proto$1.firstDayOfWeek = localeFirstDayOfWeek;

// Day of Week
            proto$1.weekdays       =        localeWeekdays;
            proto$1.weekdaysMin    =        localeWeekdaysMin;
            proto$1.weekdaysShort  =        localeWeekdaysShort;
            proto$1.weekdaysParse  =        localeWeekdaysParse;

            proto$1.weekdaysRegex       =        weekdaysRegex;
            proto$1.weekdaysShortRegex  =        weekdaysShortRegex;
            proto$1.weekdaysMinRegex    =        weekdaysMinRegex;

// Hours
            proto$1.isPM = localeIsPM;
            proto$1.meridiem = localeMeridiem;

            function get$1 (format, index, field, setter) {
                var locale = getLocale();
                var utc = createUTC().set(setter, index);
                return locale[field](utc, format);
            }

            function listMonthsImpl (format, index, field) {
                if (isNumber(format)) {
                    index = format;
                    format = undefined;
                }

                format = format || '';

                if (index != null) {
                    return get$1(format, index, field, 'month');
                }

                var i;
                var out = [];
                for (i = 0; i < 12; i++) {
                    out[i] = get$1(format, i, field, 'month');
                }
                return out;
            }

// ()
// (5)
// (fmt, 5)
// (fmt)
// (true)
// (true, 5)
// (true, fmt, 5)
// (true, fmt)
            function listWeekdaysImpl (localeSorted, format, index, field) {
                if (typeof localeSorted === 'boolean') {
                    if (isNumber(format)) {
                        index = format;
                        format = undefined;
                    }

                    format = format || '';
                } else {
                    format = localeSorted;
                    index = format;
                    localeSorted = false;

                    if (isNumber(format)) {
                        index = format;
                        format = undefined;
                    }

                    format = format || '';
                }

                var locale = getLocale(),
                    shift = localeSorted ? locale._week.dow : 0;

                if (index != null) {
                    return get$1(format, (index + shift) % 7, field, 'day');
                }

                var i;
                var out = [];
                for (i = 0; i < 7; i++) {
                    out[i] = get$1(format, (i + shift) % 7, field, 'day');
                }
                return out;
            }

            function listMonths (format, index) {
                return listMonthsImpl(format, index, 'months');
            }

            function listMonthsShort (format, index) {
                return listMonthsImpl(format, index, 'monthsShort');
            }

            function listWeekdays (localeSorted, format, index) {
                return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
            }

            function listWeekdaysShort (localeSorted, format, index) {
                return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
            }

            function listWeekdaysMin (localeSorted, format, index) {
                return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
            }

            getSetGlobalLocale('en', {
                dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
                ordinal : function (number) {
                    var b = number % 10,
                        output = (toInt(number % 100 / 10) === 1) ? 'th' :
                            (b === 1) ? 'st' :
                                (b === 2) ? 'nd' :
                                    (b === 3) ? 'rd' : 'th';
                    return number + output;
                }
            });

// Side effect imports
            hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
            hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);

            var mathAbs = Math.abs;

            function abs () {
                var data           = this._data;

                this._milliseconds = mathAbs(this._milliseconds);
                this._days         = mathAbs(this._days);
                this._months       = mathAbs(this._months);

                data.milliseconds  = mathAbs(data.milliseconds);
                data.seconds       = mathAbs(data.seconds);
                data.minutes       = mathAbs(data.minutes);
                data.hours         = mathAbs(data.hours);
                data.months        = mathAbs(data.months);
                data.years         = mathAbs(data.years);

                return this;
            }

            function addSubtract$1 (duration, input, value, direction) {
                var other = createDuration(input, value);

                duration._milliseconds += direction * other._milliseconds;
                duration._days         += direction * other._days;
                duration._months       += direction * other._months;

                return duration._bubble();
            }

// supports only 2.0-style add(1, 's') or add(duration)
            function add$1 (input, value) {
                return addSubtract$1(this, input, value, 1);
            }

// supports only 2.0-style subtract(1, 's') or subtract(duration)
            function subtract$1 (input, value) {
                return addSubtract$1(this, input, value, -1);
            }

            function absCeil (number) {
                if (number < 0) {
                    return Math.floor(number);
                } else {
                    return Math.ceil(number);
                }
            }

            function bubble () {
                var milliseconds = this._milliseconds;
                var days         = this._days;
                var months       = this._months;
                var data         = this._data;
                var seconds, minutes, hours, years, monthsFromDays;

                // if we have a mix of positive and negative values, bubble down first
                // check: https://github.com/moment/moment/issues/2166
                if (!((milliseconds >= 0 && days >= 0 && months >= 0) ||
                    (milliseconds <= 0 && days <= 0 && months <= 0))) {
                    milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
                    days = 0;
                    months = 0;
                }

                // The following code bubbles up values, see the tests for
                // examples of what that means.
                data.milliseconds = milliseconds % 1000;

                seconds           = absFloor(milliseconds / 1000);
                data.seconds      = seconds % 60;

                minutes           = absFloor(seconds / 60);
                data.minutes      = minutes % 60;

                hours             = absFloor(minutes / 60);
                data.hours        = hours % 24;

                days += absFloor(hours / 24);

                // convert days to months
                monthsFromDays = absFloor(daysToMonths(days));
                months += monthsFromDays;
                days -= absCeil(monthsToDays(monthsFromDays));

                // 12 months -> 1 year
                years = absFloor(months / 12);
                months %= 12;

                data.days   = days;
                data.months = months;
                data.years  = years;

                return this;
            }

            function daysToMonths (days) {
                // 400 years have 146097 days (taking into account leap year rules)
                // 400 years have 12 months === 4800
                return days * 4800 / 146097;
            }

            function monthsToDays (months) {
                // the reverse of daysToMonths
                return months * 146097 / 4800;
            }

            function as (units) {
                if (!this.isValid()) {
                    return NaN;
                }
                var days;
                var months;
                var milliseconds = this._milliseconds;

                units = normalizeUnits(units);

                if (units === 'month' || units === 'year') {
                    days   = this._days   + milliseconds / 864e5;
                    months = this._months + daysToMonths(days);
                    return units === 'month' ? months : months / 12;
                } else {
                    // handle milliseconds separately because of floating point math errors (issue #1867)
                    days = this._days + Math.round(monthsToDays(this._months));
                    switch (units) {
                        case 'week'   : return days / 7     + milliseconds / 6048e5;
                        case 'day'    : return days         + milliseconds / 864e5;
                        case 'hour'   : return days * 24    + milliseconds / 36e5;
                        case 'minute' : return days * 1440  + milliseconds / 6e4;
                        case 'second' : return days * 86400 + milliseconds / 1000;
                        // Math.floor prevents floating point math errors here
                        case 'millisecond': return Math.floor(days * 864e5) + milliseconds;
                        default: throw new Error('Unknown unit ' + units);
                    }
                }
            }

// TODO: Use this.as('ms')?
            function valueOf$1 () {
                if (!this.isValid()) {
                    return NaN;
                }
                return (
                    this._milliseconds +
                    this._days * 864e5 +
                    (this._months % 12) * 2592e6 +
                    toInt(this._months / 12) * 31536e6
                );
            }

            function makeAs (alias) {
                return function () {
                    return this.as(alias);
                };
            }

            var asMilliseconds = makeAs('ms');
            var asSeconds      = makeAs('s');
            var asMinutes      = makeAs('m');
            var asHours        = makeAs('h');
            var asDays         = makeAs('d');
            var asWeeks        = makeAs('w');
            var asMonths       = makeAs('M');
            var asYears        = makeAs('y');

            function clone$1 () {
                return createDuration(this);
            }

            function get$2 (units) {
                units = normalizeUnits(units);
                return this.isValid() ? this[units + 's']() : NaN;
            }

            function makeGetter(name) {
                return function () {
                    return this.isValid() ? this._data[name] : NaN;
                };
            }

            var milliseconds = makeGetter('milliseconds');
            var seconds      = makeGetter('seconds');
            var minutes      = makeGetter('minutes');
            var hours        = makeGetter('hours');
            var days         = makeGetter('days');
            var months       = makeGetter('months');
            var years        = makeGetter('years');

            function weeks () {
                return absFloor(this.days() / 7);
            }

            var round = Math.round;
            var thresholds = {
                ss: 44,         // a few seconds to seconds
                s : 45,         // seconds to minute
                m : 45,         // minutes to hour
                h : 22,         // hours to day
                d : 26,         // days to month
                M : 11          // months to year
            };

// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
            function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
                return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
            }

            function relativeTime$1 (posNegDuration, withoutSuffix, locale) {
                var duration = createDuration(posNegDuration).abs();
                var seconds  = round(duration.as('s'));
                var minutes  = round(duration.as('m'));
                var hours    = round(duration.as('h'));
                var days     = round(duration.as('d'));
                var months   = round(duration.as('M'));
                var years    = round(duration.as('y'));

                var a = seconds <= thresholds.ss && ['s', seconds]  ||
                    seconds < thresholds.s   && ['ss', seconds] ||
                    minutes <= 1             && ['m']           ||
                    minutes < thresholds.m   && ['mm', minutes] ||
                    hours   <= 1             && ['h']           ||
                    hours   < thresholds.h   && ['hh', hours]   ||
                    days    <= 1             && ['d']           ||
                    days    < thresholds.d   && ['dd', days]    ||
                    months  <= 1             && ['M']           ||
                    months  < thresholds.M   && ['MM', months]  ||
                    years   <= 1             && ['y']           || ['yy', years];

                a[2] = withoutSuffix;
                a[3] = +posNegDuration > 0;
                a[4] = locale;
                return substituteTimeAgo.apply(null, a);
            }

// This function allows you to set the rounding function for relative time strings
            function getSetRelativeTimeRounding (roundingFunction) {
                if (roundingFunction === undefined) {
                    return round;
                }
                if (typeof(roundingFunction) === 'function') {
                    round = roundingFunction;
                    return true;
                }
                return false;
            }

// This function allows you to set a threshold for relative time strings
            function getSetRelativeTimeThreshold (threshold, limit) {
                if (thresholds[threshold] === undefined) {
                    return false;
                }
                if (limit === undefined) {
                    return thresholds[threshold];
                }
                thresholds[threshold] = limit;
                if (threshold === 's') {
                    thresholds.ss = limit - 1;
                }
                return true;
            }

            function humanize (withSuffix) {
                if (!this.isValid()) {
                    return this.localeData().invalidDate();
                }

                var locale = this.localeData();
                var output = relativeTime$1(this, !withSuffix, locale);

                if (withSuffix) {
                    output = locale.pastFuture(+this, output);
                }

                return locale.postformat(output);
            }

            var abs$1 = Math.abs;

            function sign(x) {
                return ((x > 0) - (x < 0)) || +x;
            }

            function toISOString$1() {
                // for ISO strings we do not use the normal bubbling rules:
                //  * milliseconds bubble up until they become hours
                //  * days do not bubble at all
                //  * months bubble up until they become years
                // This is because there is no context-free conversion between hours and days
                // (think of clock changes)
                // and also not between days and months (28-31 days per month)
                if (!this.isValid()) {
                    return this.localeData().invalidDate();
                }

                var seconds = abs$1(this._milliseconds) / 1000;
                var days         = abs$1(this._days);
                var months       = abs$1(this._months);
                var minutes, hours, years;

                // 3600 seconds -> 60 minutes -> 1 hour
                minutes           = absFloor(seconds / 60);
                hours             = absFloor(minutes / 60);
                seconds %= 60;
                minutes %= 60;

                // 12 months -> 1 year
                years  = absFloor(months / 12);
                months %= 12;


                // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
                var Y = years;
                var M = months;
                var D = days;
                var h = hours;
                var m = minutes;
                var s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
                var total = this.asSeconds();

                if (!total) {
                    // this is the same as C#'s (Noda) and python (isodate)...
                    // but not other JS (goog.date)
                    return 'P0D';
                }

                var totalSign = total < 0 ? '-' : '';
                var ymSign = sign(this._months) !== sign(total) ? '-' : '';
                var daysSign = sign(this._days) !== sign(total) ? '-' : '';
                var hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';

                return totalSign + 'P' +
                    (Y ? ymSign + Y + 'Y' : '') +
                    (M ? ymSign + M + 'M' : '') +
                    (D ? daysSign + D + 'D' : '') +
                    ((h || m || s) ? 'T' : '') +
                    (h ? hmsSign + h + 'H' : '') +
                    (m ? hmsSign + m + 'M' : '') +
                    (s ? hmsSign + s + 'S' : '');
            }

            var proto$2 = Duration.prototype;

            proto$2.isValid        = isValid$1;
            proto$2.abs            = abs;
            proto$2.add            = add$1;
            proto$2.subtract       = subtract$1;
            proto$2.as             = as;
            proto$2.asMilliseconds = asMilliseconds;
            proto$2.asSeconds      = asSeconds;
            proto$2.asMinutes      = asMinutes;
            proto$2.asHours        = asHours;
            proto$2.asDays         = asDays;
            proto$2.asWeeks        = asWeeks;
            proto$2.asMonths       = asMonths;
            proto$2.asYears        = asYears;
            proto$2.valueOf        = valueOf$1;
            proto$2._bubble        = bubble;
            proto$2.clone          = clone$1;
            proto$2.get            = get$2;
            proto$2.milliseconds   = milliseconds;
            proto$2.seconds        = seconds;
            proto$2.minutes        = minutes;
            proto$2.hours          = hours;
            proto$2.days           = days;
            proto$2.weeks          = weeks;
            proto$2.months         = months;
            proto$2.years          = years;
            proto$2.humanize       = humanize;
            proto$2.toISOString    = toISOString$1;
            proto$2.toString       = toISOString$1;
            proto$2.toJSON         = toISOString$1;
            proto$2.locale         = locale;
            proto$2.localeData     = localeData;

// Deprecations
            proto$2.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', toISOString$1);
            proto$2.lang = lang;

// Side effect imports

// FORMATTING

            addFormatToken('X', 0, 0, 'unix');
            addFormatToken('x', 0, 0, 'valueOf');

// PARSING

            addRegexToken('x', matchSigned);
            addRegexToken('X', matchTimestamp);
            addParseToken('X', function (input, array, config) {
                config._d = new Date(parseFloat(input, 10) * 1000);
            });
            addParseToken('x', function (input, array, config) {
                config._d = new Date(toInt(input));
            });

// Side effect imports


            hooks.version = '2.20.1';

            setHookCallback(createLocal);

            hooks.fn                    = proto;
            hooks.min                   = min;
            hooks.max                   = max;
            hooks.now                   = now;
            hooks.utc                   = createUTC;
            hooks.unix                  = createUnix;
            hooks.months                = listMonths;
            hooks.isDate                = isDate;
            hooks.locale                = getSetGlobalLocale;
            hooks.invalid               = createInvalid;
            hooks.duration              = createDuration;
            hooks.isMoment              = isMoment;
            hooks.weekdays              = listWeekdays;
            hooks.parseZone             = createInZone;
            hooks.localeData            = getLocale;
            hooks.isDuration            = isDuration;
            hooks.monthsShort           = listMonthsShort;
            hooks.weekdaysMin           = listWeekdaysMin;
            hooks.defineLocale          = defineLocale;
            hooks.updateLocale          = updateLocale;
            hooks.locales               = listLocales;
            hooks.weekdaysShort         = listWeekdaysShort;
            hooks.normalizeUnits        = normalizeUnits;
            hooks.relativeTimeRounding  = getSetRelativeTimeRounding;
            hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
            hooks.calendarFormat        = getCalendarFormat;
            hooks.prototype             = proto;

// currently HTML5 input type only supports 24-hour formats
            hooks.HTML5_FMT = {
                DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm',             // <input type="datetime-local" />
                DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss',  // <input type="datetime-local" step="1" />
                DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS',   // <input type="datetime-local" step="0.001" />
                DATE: 'YYYY-MM-DD',                             // <input type="date" />
                TIME: 'HH:mm',                                  // <input type="time" />
                TIME_SECONDS: 'HH:mm:ss',                       // <input type="time" step="1" />
                TIME_MS: 'HH:mm:ss.SSS',                        // <input type="time" step="0.001" />
                WEEK: 'YYYY-[W]WW',                             // <input type="week" />
                MONTH: 'YYYY-MM'                                // <input type="month" />
            };

            return hooks;

        })));

    },{}],7:[function(require,module,exports){
        /**
         * @namespace Chart
         */
        var Chart = require(29)();

        Chart.helpers = require(45);

// @todo dispatch these helpers into appropriated helpers/helpers.* file and write unit tests!
        require(27)(Chart);

        Chart.defaults = require(25);
        Chart.Element = require(26);
        Chart.elements = require(40);
        Chart.Interaction = require(28);
        Chart.layouts = require(30);
        Chart.platform = require(48);
        Chart.plugins = require(31);
        Chart.Ticks = require(34);

        require(22)(Chart);
        require(23)(Chart);
        require(24)(Chart);
        require(33)(Chart);
        require(32)(Chart);
        require(35)(Chart);

        require(55)(Chart);
        require(53)(Chart);
        require(54)(Chart);
        require(56)(Chart);
        require(57)(Chart);
        require(58)(Chart);

// Controllers must be loaded after elements
// See Chart.core.datasetController.dataElementType
        require(15)(Chart);
        require(16)(Chart);
        require(17)(Chart);
        require(18)(Chart);
        require(19)(Chart);
        require(20)(Chart);
        require(21)(Chart);

        require(8)(Chart);
        require(9)(Chart);
        require(10)(Chart);
        require(11)(Chart);
        require(12)(Chart);
        require(13)(Chart);
        require(14)(Chart);

// Loading built-it plugins
        var plugins = require(49);
        for (var k in plugins) {
            if (plugins.hasOwnProperty(k)) {
                Chart.plugins.register(plugins[k]);
            }
        }

        Chart.platform.initialize();

        module.exports = Chart;
        if (typeof window !== 'undefined') {
            window.Chart = Chart;
        }

// DEPRECATIONS

        /**
         * Provided for backward compatibility, not available anymore
         * @namespace Chart.Legend
         * @deprecated since version 2.1.5
         * @todo remove at version 3
         * @private
         */
        Chart.Legend = plugins.legend._element;

        /**
         * Provided for backward compatibility, not available anymore
         * @namespace Chart.Title
         * @deprecated since version 2.1.5
         * @todo remove at version 3
         * @private
         */
        Chart.Title = plugins.title._element;

        /**
         * Provided for backward compatibility, use Chart.plugins instead
         * @namespace Chart.pluginService
         * @deprecated since version 2.1.5
         * @todo remove at version 3
         * @private
         */
        Chart.pluginService = Chart.plugins;

        /**
         * Provided for backward compatibility, inheriting from Chart.PlugingBase has no
         * effect, instead simply create/register plugins via plain JavaScript objects.
         * @interface Chart.PluginBase
         * @deprecated since version 2.5.0
         * @todo remove at version 3
         * @private
         */
        Chart.PluginBase = Chart.Element.extend({});

        /**
         * Provided for backward compatibility, use Chart.helpers.canvas instead.
         * @namespace Chart.canvasHelpers
         * @deprecated since version 2.6.0
         * @todo remove at version 3
         * @private
         */
        Chart.canvasHelpers = Chart.helpers.canvas;

        /**
         * Provided for backward compatibility, use Chart.layouts instead.
         * @namespace Chart.layoutService
         * @deprecated since version 2.8.0
         * @todo remove at version 3
         * @private
         */
        Chart.layoutService = Chart.layouts;

    },{"10":10,"11":11,"12":12,"13":13,"14":14,"15":15,"16":16,"17":17,"18":18,"19":19,"20":20,"21":21,"22":22,"23":23,"24":24,"25":25,"26":26,"27":27,"28":28,"29":29,"30":30,"31":31,"32":32,"33":33,"34":34,"35":35,"40":40,"45":45,"48":48,"49":49,"53":53,"54":54,"55":55,"56":56,"57":57,"58":58,"8":8,"9":9}],8:[function(require,module,exports){
        'use strict';

        module.exports = function(Chart) {

            Chart.Bar = function(context, config) {
                config.type = 'bar';

                return new Chart(context, config);
            };

        };

    },{}],9:[function(require,module,exports){
        'use strict';

        module.exports = function(Chart) {

            Chart.Bubble = function(context, config) {
                config.type = 'bubble';
                return new Chart(context, config);
            };

        };

    },{}],10:[function(require,module,exports){
        'use strict';

        module.exports = function(Chart) {

            Chart.Doughnut = function(context, config) {
                config.type = 'doughnut';

                return new Chart(context, config);
            };

        };

    },{}],11:[function(require,module,exports){
        'use strict';

        module.exports = function(Chart) {

            Chart.Line = function(context, config) {
                config.type = 'line';

                return new Chart(context, config);
            };

        };

    },{}],12:[function(require,module,exports){
        'use strict';

        module.exports = function(Chart) {

            Chart.PolarArea = function(context, config) {
                config.type = 'polarArea';

                return new Chart(context, config);
            };

        };

    },{}],13:[function(require,module,exports){
        'use strict';

        module.exports = function(Chart) {

            Chart.Radar = function(context, config) {
                config.type = 'radar';

                return new Chart(context, config);
            };

        };

    },{}],14:[function(require,module,exports){
        'use strict';

        module.exports = function(Chart) {
            Chart.Scatter = function(context, config) {
                config.type = 'scatter';
                return new Chart(context, config);
            };
        };

    },{}],15:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var elements = require(40);
        var helpers = require(45);

        defaults._set('bar', {
            hover: {
                mode: 'label'
            },

            scales: {
                xAxes: [{
                    type: 'category',

                    // Specific to Bar Controller
                    categoryPercentage: 0.8,
                    barPercentage: 0.9,

                    // offset settings
                    offset: true,

                    // grid line settings
                    gridLines: {
                        offsetGridLines: true
                    }
                }],

                yAxes: [{
                    type: 'linear'
                }]
            }
        });

        defaults._set('horizontalBar', {
            hover: {
                mode: 'index',
                axis: 'y'
            },

            scales: {
                xAxes: [{
                    type: 'linear',
                    position: 'bottom'
                }],

                yAxes: [{
                    position: 'left',
                    type: 'category',

                    // Specific to Horizontal Bar Controller
                    categoryPercentage: 0.8,
                    barPercentage: 0.9,

                    // offset settings
                    offset: true,

                    // grid line settings
                    gridLines: {
                        offsetGridLines: true
                    }
                }]
            },

            elements: {
                rectangle: {
                    borderSkipped: 'left'
                }
            },

            tooltips: {
                callbacks: {
                    title: function(item, data) {
                        // Pick first xLabel for now
                        var title = '';

                        if (item.length > 0) {
                            if (item[0].yLabel) {
                                title = item[0].yLabel;
                            } else if (data.labels.length > 0 && item[0].index < data.labels.length) {
                                title = data.labels[item[0].index];
                            }
                        }

                        return title;
                    },

                    label: function(item, data) {
                        var datasetLabel = data.datasets[item.datasetIndex].label || '';
                        return datasetLabel + ': ' + item.xLabel;
                    }
                },
                mode: 'index',
                axis: 'y'
            }
        });

        /**
         * Computes the "optimal" sample size to maintain bars equally sized while preventing overlap.
         * @private
         */
        function computeMinSampleSize(scale, pixels) {
            var min = scale.isHorizontal() ? scale.width : scale.height;
            var ticks = scale.getTicks();
            var prev, curr, i, ilen;

            for (i = 1, ilen = pixels.length; i < ilen; ++i) {
                min = Math.min(min, pixels[i] - pixels[i - 1]);
            }

            for (i = 0, ilen = ticks.length; i < ilen; ++i) {
                curr = scale.getPixelForTick(i);
                min = i > 0 ? Math.min(min, curr - prev) : min;
                prev = curr;
            }

            return min;
        }

        /**
         * Computes an "ideal" category based on the absolute bar thickness or, if undefined or null,
         * uses the smallest interval (see computeMinSampleSize) that prevents bar overlapping. This
         * mode currently always generates bars equally sized (until we introduce scriptable options?).
         * @private
         */
        function computeFitCategoryTraits(index, ruler, options) {
            var thickness = options.barThickness;
            var count = ruler.stackCount;
            var curr = ruler.pixels[index];
            var size, ratio;

            if (helpers.isNullOrUndef(thickness)) {
                size = ruler.min * options.categoryPercentage;
                ratio = options.barPercentage;
            } else {
                // When bar thickness is enforced, category and bar percentages are ignored.
                // Note(SB): we could add support for relative bar thickness (e.g. barThickness: '50%')
                // and deprecate barPercentage since this value is ignored when thickness is absolute.
                size = thickness * count;
                ratio = 1;
            }

            return {
                chunk: size / count,
                ratio: ratio,
                start: curr - (size / 2)
            };
        }

        /**
         * Computes an "optimal" category that globally arranges bars side by side (no gap when
         * percentage options are 1), based on the previous and following categories. This mode
         * generates bars with different widths when data are not evenly spaced.
         * @private
         */
        function computeFlexCategoryTraits(index, ruler, options) {
            var pixels = ruler.pixels;
            var curr = pixels[index];
            var prev = index > 0 ? pixels[index - 1] : null;
            var next = index < pixels.length - 1 ? pixels[index + 1] : null;
            var percent = options.categoryPercentage;
            var start, size;

            if (prev === null) {
                // first data: its size is double based on the next point or,
                // if it's also the last data, we use the scale end extremity.
                prev = curr - (next === null ? ruler.end - curr : next - curr);
            }

            if (next === null) {
                // last data: its size is also double based on the previous point.
                next = curr + curr - prev;
            }

            start = curr - ((curr - prev) / 2) * percent;
            size = ((next - prev) / 2) * percent;

            return {
                chunk: size / ruler.stackCount,
                ratio: options.barPercentage,
                start: start
            };
        }

        module.exports = function(Chart) {

            Chart.controllers.bar = Chart.DatasetController.extend({

                dataElementType: elements.Rectangle,

                initialize: function() {
                    var me = this;
                    var meta;

                    Chart.DatasetController.prototype.initialize.apply(me, arguments);

                    meta = me.getMeta();
                    meta.stack = me.getDataset().stack;
                    meta.bar = true;
                },

                update: function(reset) {
                    var me = this;
                    var rects = me.getMeta().data;
                    var i, ilen;

                    me._ruler = me.getRuler();

                    for (i = 0, ilen = rects.length; i < ilen; ++i) {
                        me.updateElement(rects[i], i, reset);
                    }
                },

                updateElement: function(rectangle, index, reset) {
                    var me = this;
                    var chart = me.chart;
                    var meta = me.getMeta();
                    var dataset = me.getDataset();
                    var custom = rectangle.custom || {};
                    var rectangleOptions = chart.options.elements.rectangle;

                    rectangle._xScale = me.getScaleForId(meta.xAxisID);
                    rectangle._yScale = me.getScaleForId(meta.yAxisID);
                    rectangle._datasetIndex = me.index;
                    rectangle._index = index;

                    rectangle._model = {
                        datasetLabel: dataset.label,
                        label: chart.data.labels[index],
                        borderSkipped: custom.borderSkipped ? custom.borderSkipped : rectangleOptions.borderSkipped,
                        backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.backgroundColor, index, rectangleOptions.backgroundColor),
                        borderColor: custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.borderColor, index, rectangleOptions.borderColor),
                        borderWidth: custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.borderWidth, index, rectangleOptions.borderWidth)
                    };

                    me.updateElementGeometry(rectangle, index, reset);

                    rectangle.pivot();
                },

                /**
                 * @private
                 */
                updateElementGeometry: function(rectangle, index, reset) {
                    var me = this;
                    var model = rectangle._model;
                    var vscale = me.getValueScale();
                    var base = vscale.getBasePixel();
                    var horizontal = vscale.isHorizontal();
                    var ruler = me._ruler || me.getRuler();
                    var vpixels = me.calculateBarValuePixels(me.index, index);
                    var ipixels = me.calculateBarIndexPixels(me.index, index, ruler);

                    model.horizontal = horizontal;
                    model.base = reset ? base : vpixels.base;
                    model.x = horizontal ? reset ? base : vpixels.head : ipixels.center;
                    model.y = horizontal ? ipixels.center : reset ? base : vpixels.head;
                    model.height = horizontal ? ipixels.size : undefined;
                    model.width = horizontal ? undefined : ipixels.size;
                },

                /**
                 * @private
                 */
                getValueScaleId: function() {
                    return this.getMeta().yAxisID;
                },

                /**
                 * @private
                 */
                getIndexScaleId: function() {
                    return this.getMeta().xAxisID;
                },

                /**
                 * @private
                 */
                getValueScale: function() {
                    return this.getScaleForId(this.getValueScaleId());
                },

                /**
                 * @private
                 */
                getIndexScale: function() {
                    return this.getScaleForId(this.getIndexScaleId());
                },

                /**
                 * Returns the stacks based on groups and bar visibility.
                 * @param {Number} [last] - The dataset index
                 * @returns {Array} The stack list
                 * @private
                 */
                _getStacks: function(last) {
                    var me = this;
                    var chart = me.chart;
                    var scale = me.getIndexScale();
                    var stacked = scale.options.stacked;
                    var ilen = last === undefined ? chart.data.datasets.length : last + 1;
                    var stacks = [];
                    var i, meta;

                    for (i = 0; i < ilen; ++i) {
                        meta = chart.getDatasetMeta(i);
                        if (meta.bar && chart.isDatasetVisible(i) &&
                            (stacked === false ||
                                (stacked === true && stacks.indexOf(meta.stack) === -1) ||
                                (stacked === undefined && (meta.stack === undefined || stacks.indexOf(meta.stack) === -1)))) {
                            stacks.push(meta.stack);
                        }
                    }

                    return stacks;
                },

                /**
                 * Returns the effective number of stacks based on groups and bar visibility.
                 * @private
                 */
                getStackCount: function() {
                    return this._getStacks().length;
                },

                /**
                 * Returns the stack index for the given dataset based on groups and bar visibility.
                 * @param {Number} [datasetIndex] - The dataset index
                 * @param {String} [name] - The stack name to find
                 * @returns {Number} The stack index
                 * @private
                 */
                getStackIndex: function(datasetIndex, name) {
                    var stacks = this._getStacks(datasetIndex);
                    var index = (name !== undefined)
                        ? stacks.indexOf(name)
                        : -1; // indexOf returns -1 if element is not present

                    return (index === -1)
                        ? stacks.length - 1
                        : index;
                },

                /**
                 * @private
                 */
                getRuler: function() {
                    var me = this;
                    var scale = me.getIndexScale();
                    var stackCount = me.getStackCount();
                    var datasetIndex = me.index;
                    var isHorizontal = scale.isHorizontal();
                    var start = isHorizontal ? scale.left : scale.top;
                    var end = start + (isHorizontal ? scale.width : scale.height);
                    var pixels = [];
                    var i, ilen, min;

                    for (i = 0, ilen = me.getMeta().data.length; i < ilen; ++i) {
                        pixels.push(scale.getPixelForValue(null, i, datasetIndex));
                    }

                    min = helpers.isNullOrUndef(scale.options.barThickness)
                        ? computeMinSampleSize(scale, pixels)
                        : -1;

                    return {
                        min: min,
                        pixels: pixels,
                        start: start,
                        end: end,
                        stackCount: stackCount,
                        scale: scale
                    };
                },

                /**
                 * Note: pixel values are not clamped to the scale area.
                 * @private
                 */
                calculateBarValuePixels: function(datasetIndex, index) {
                    var me = this;
                    var chart = me.chart;
                    var meta = me.getMeta();
                    var scale = me.getValueScale();
                    var datasets = chart.data.datasets;
                    var value = scale.getRightValue(datasets[datasetIndex].data[index]);
                    var stacked = scale.options.stacked;
                    var stack = meta.stack;
                    var start = 0;
                    var i, imeta, ivalue, base, head, size;

                    if (stacked || (stacked === undefined && stack !== undefined)) {
                        for (i = 0; i < datasetIndex; ++i) {
                            imeta = chart.getDatasetMeta(i);

                            if (imeta.bar &&
                                imeta.stack === stack &&
                                imeta.controller.getValueScaleId() === scale.id &&
                                chart.isDatasetVisible(i)) {

                                ivalue = scale.getRightValue(datasets[i].data[index]);
                                if ((value < 0 && ivalue < 0) || (value >= 0 && ivalue > 0)) {
                                    start += ivalue;
                                }
                            }
                        }
                    }

                    base = scale.getPixelForValue(start);
                    head = scale.getPixelForValue(start + value);
                    size = (head - base) / 2;

                    return {
                        size: size,
                        base: base,
                        head: head,
                        center: head + size / 2
                    };
                },

                /**
                 * @private
                 */
                calculateBarIndexPixels: function(datasetIndex, index, ruler) {
                    var me = this;
                    var options = ruler.scale.options;
                    var range = options.barThickness === 'flex'
                        ? computeFlexCategoryTraits(index, ruler, options)
                        : computeFitCategoryTraits(index, ruler, options);

                    var stackIndex = me.getStackIndex(datasetIndex, me.getMeta().stack);
                    var center = range.start + (range.chunk * stackIndex) + (range.chunk / 2);
                    var size = Math.min(
                        helpers.valueOrDefault(options.maxBarThickness, Infinity),
                        range.chunk * range.ratio);

                    return {
                        base: center - size / 2,
                        head: center + size / 2,
                        center: center,
                        size: size
                    };
                },

                draw: function() {
                    var me = this;
                    var chart = me.chart;
                    var scale = me.getValueScale();
                    var rects = me.getMeta().data;
                    var dataset = me.getDataset();
                    var ilen = rects.length;
                    var i = 0;

                    helpers.canvas.clipArea(chart.ctx, chart.chartArea);

                    for (; i < ilen; ++i) {
                        if (!isNaN(scale.getRightValue(dataset.data[i]))) {
                            rects[i].draw();
                        }
                    }

                    helpers.canvas.unclipArea(chart.ctx);
                },

                setHoverStyle: function(rectangle) {
                    var dataset = this.chart.data.datasets[rectangle._datasetIndex];
                    var index = rectangle._index;
                    var custom = rectangle.custom || {};
                    var model = rectangle._model;

                    model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : helpers.valueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
                    model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : helpers.valueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.getHoverColor(model.borderColor));
                    model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : helpers.valueAtIndexOrDefault(dataset.hoverBorderWidth, index, model.borderWidth);
                },

                removeHoverStyle: function(rectangle) {
                    var dataset = this.chart.data.datasets[rectangle._datasetIndex];
                    var index = rectangle._index;
                    var custom = rectangle.custom || {};
                    var model = rectangle._model;
                    var rectangleElementOptions = this.chart.options.elements.rectangle;

                    model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.backgroundColor, index, rectangleElementOptions.backgroundColor);
                    model.borderColor = custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.borderColor, index, rectangleElementOptions.borderColor);
                    model.borderWidth = custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.borderWidth, index, rectangleElementOptions.borderWidth);
                }
            });

            Chart.controllers.horizontalBar = Chart.controllers.bar.extend({
                /**
                 * @private
                 */
                getValueScaleId: function() {
                    return this.getMeta().xAxisID;
                },

                /**
                 * @private
                 */
                getIndexScaleId: function() {
                    return this.getMeta().yAxisID;
                }
            });
        };

    },{"25":25,"40":40,"45":45}],16:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var elements = require(40);
        var helpers = require(45);

        defaults._set('bubble', {
            hover: {
                mode: 'single'
            },

            scales: {
                xAxes: [{
                    type: 'linear', // bubble should probably use a linear scale by default
                    position: 'bottom',
                    id: 'x-axis-0' // need an ID so datasets can reference the scale
                }],
                yAxes: [{
                    type: 'linear',
                    position: 'left',
                    id: 'y-axis-0'
                }]
            },

            tooltips: {
                callbacks: {
                    title: function() {
                        // Title doesn't make sense for scatter since we format the data as a point
                        return '';
                    },
                    label: function(item, data) {
                        var datasetLabel = data.datasets[item.datasetIndex].label || '';
                        var dataPoint = data.datasets[item.datasetIndex].data[item.index];
                        return datasetLabel + ': (' + item.xLabel + ', ' + item.yLabel + ', ' + dataPoint.r + ')';
                    }
                }
            }
        });


        module.exports = function(Chart) {

            Chart.controllers.bubble = Chart.DatasetController.extend({
                /**
                 * @protected
                 */
                dataElementType: elements.Point,

                /**
                 * @protected
                 */
                update: function(reset) {
                    var me = this;
                    var meta = me.getMeta();
                    var points = meta.data;

                    // Update Points
                    helpers.each(points, function(point, index) {
                        me.updateElement(point, index, reset);
                    });
                },

                /**
                 * @protected
                 */
                updateElement: function(point, index, reset) {
                    var me = this;
                    var meta = me.getMeta();
                    var custom = point.custom || {};
                    var xScale = me.getScaleForId(meta.xAxisID);
                    var yScale = me.getScaleForId(meta.yAxisID);
                    var options = me._resolveElementOptions(point, index);
                    var data = me.getDataset().data[index];
                    var dsIndex = me.index;

                    var x = reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(typeof data === 'object' ? data : NaN, index, dsIndex);
                    var y = reset ? yScale.getBasePixel() : yScale.getPixelForValue(data, index, dsIndex);

                    point._xScale = xScale;
                    point._yScale = yScale;
                    point._options = options;
                    point._datasetIndex = dsIndex;
                    point._index = index;
                    point._model = {
                        backgroundColor: options.backgroundColor,
                        borderColor: options.borderColor,
                        borderWidth: options.borderWidth,
                        hitRadius: options.hitRadius,
                        pointStyle: options.pointStyle,
                        radius: reset ? 0 : options.radius,
                        skip: custom.skip || isNaN(x) || isNaN(y),
                        x: x,
                        y: y,
                    };

                    point.pivot();
                },

                /**
                 * @protected
                 */
                setHoverStyle: function(point) {
                    var model = point._model;
                    var options = point._options;

                    model.backgroundColor = helpers.valueOrDefault(options.hoverBackgroundColor, helpers.getHoverColor(options.backgroundColor));
                    model.borderColor = helpers.valueOrDefault(options.hoverBorderColor, helpers.getHoverColor(options.borderColor));
                    model.borderWidth = helpers.valueOrDefault(options.hoverBorderWidth, options.borderWidth);
                    model.radius = options.radius + options.hoverRadius;
                },

                /**
                 * @protected
                 */
                removeHoverStyle: function(point) {
                    var model = point._model;
                    var options = point._options;

                    model.backgroundColor = options.backgroundColor;
                    model.borderColor = options.borderColor;
                    model.borderWidth = options.borderWidth;
                    model.radius = options.radius;
                },

                /**
                 * @private
                 */
                _resolveElementOptions: function(point, index) {
                    var me = this;
                    var chart = me.chart;
                    var datasets = chart.data.datasets;
                    var dataset = datasets[me.index];
                    var custom = point.custom || {};
                    var options = chart.options.elements.point;
                    var resolve = helpers.options.resolve;
                    var data = dataset.data[index];
                    var values = {};
                    var i, ilen, key;

                    // Scriptable options
                    var context = {
                        chart: chart,
                        dataIndex: index,
                        dataset: dataset,
                        datasetIndex: me.index
                    };

                    var keys = [
                        'backgroundColor',
                        'borderColor',
                        'borderWidth',
                        'hoverBackgroundColor',
                        'hoverBorderColor',
                        'hoverBorderWidth',
                        'hoverRadius',
                        'hitRadius',
                        'pointStyle'
                    ];

                    for (i = 0, ilen = keys.length; i < ilen; ++i) {
                        key = keys[i];
                        values[key] = resolve([
                            custom[key],
                            dataset[key],
                            options[key]
                        ], context, index);
                    }

                    // Custom radius resolution
                    values.radius = resolve([
                        custom.radius,
                        data ? data.r : undefined,
                        dataset.radius,
                        options.radius
                    ], context, index);

                    return values;
                }
            });
        };

    },{"25":25,"40":40,"45":45}],17:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var elements = require(40);
        var helpers = require(45);

        defaults._set('doughnut', {
            animation: {
                // Boolean - Whether we animate the rotation of the Doughnut
                animateRotate: true,
                // Boolean - Whether we animate scaling the Doughnut from the centre
                animateScale: false
            },
            hover: {
                mode: 'single'
            },
            legendCallback: function(chart) {
                var text = [];
                text.push('<ul class="' + chart.id + '-legend">');

                var data = chart.data;
                var datasets = data.datasets;
                var labels = data.labels;

                if (datasets.length) {
                    for (var i = 0; i < datasets[0].data.length; ++i) {
                        text.push('<li><span style="background-color:' + datasets[0].backgroundColor[i] + '"></span>');
                        if (labels[i]) {
                            text.push(labels[i]);
                        }
                        text.push('</li>');
                    }
                }

                text.push('</ul>');
                return text.join('');
            },
            legend: {
                labels: {
                    generateLabels: function(chart) {
                        var data = chart.data;
                        if (data.labels.length && data.datasets.length) {
                            return data.labels.map(function(label, i) {
                                var meta = chart.getDatasetMeta(0);
                                var ds = data.datasets[0];
                                var arc = meta.data[i];
                                var custom = arc && arc.custom || {};
                                var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
                                var arcOpts = chart.options.elements.arc;
                                var fill = custom.backgroundColor ? custom.backgroundColor : valueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor);
                                var stroke = custom.borderColor ? custom.borderColor : valueAtIndexOrDefault(ds.borderColor, i, arcOpts.borderColor);
                                var bw = custom.borderWidth ? custom.borderWidth : valueAtIndexOrDefault(ds.borderWidth, i, arcOpts.borderWidth);

                                return {
                                    text: label,
                                    fillStyle: fill,
                                    strokeStyle: stroke,
                                    lineWidth: bw,
                                    hidden: isNaN(ds.data[i]) || meta.data[i].hidden,

                                    // Extra data used for toggling the correct item
                                    index: i
                                };
                            });
                        }
                        return [];
                    }
                },

                onClick: function(e, legendItem) {
                    var index = legendItem.index;
                    var chart = this.chart;
                    var i, ilen, meta;

                    for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
                        meta = chart.getDatasetMeta(i);
                        // toggle visibility of index if exists
                        if (meta.data[index]) {
                            meta.data[index].hidden = !meta.data[index].hidden;
                        }
                    }

                    chart.update();
                }
            },

            // The percentage of the chart that we cut out of the middle.
            cutoutPercentage: 50,

            // The rotation of the chart, where the first data arc begins.
            rotation: Math.PI * -0.5,

            // The total circumference of the chart.
            circumference: Math.PI * 2.0,

            // Need to override these to give a nice default
            tooltips: {
                callbacks: {
                    title: function() {
                        return '';
                    },
                    label: function(tooltipItem, data) {
                        var dataLabel = data.labels[tooltipItem.index];
                        var value = ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];

                        if (helpers.isArray(dataLabel)) {
                            // show value on first line of multiline label
                            // need to clone because we are changing the value
                            dataLabel = dataLabel.slice();
                            dataLabel[0] += value;
                        } else {
                            dataLabel += value;
                        }

                        return dataLabel;
                    }
                }
            }
        });

        defaults._set('pie', helpers.clone(defaults.doughnut));
        defaults._set('pie', {
            cutoutPercentage: 0
        });

        module.exports = function(Chart) {

            Chart.controllers.doughnut = Chart.controllers.pie = Chart.DatasetController.extend({

                dataElementType: elements.Arc,

                linkScales: helpers.noop,

                // Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly
                getRingIndex: function(datasetIndex) {
                    var ringIndex = 0;

                    for (var j = 0; j < datasetIndex; ++j) {
                        if (this.chart.isDatasetVisible(j)) {
                            ++ringIndex;
                        }
                    }

                    return ringIndex;
                },

                update: function(reset) {
                    var me = this;
                    var chart = me.chart;
                    var chartArea = chart.chartArea;
                    var opts = chart.options;
                    var arcOpts = opts.elements.arc;
                    var availableWidth = chartArea.right - chartArea.left - arcOpts.borderWidth;
                    var availableHeight = chartArea.bottom - chartArea.top - arcOpts.borderWidth;
                    var minSize = Math.min(availableWidth, availableHeight);
                    var offset = {x: 0, y: 0};
                    var meta = me.getMeta();
                    var cutoutPercentage = opts.cutoutPercentage;
                    var circumference = opts.circumference;

                    // If the chart's circumference isn't a full circle, calculate minSize as a ratio of the width/height of the arc
                    if (circumference < Math.PI * 2.0) {
                        var startAngle = opts.rotation % (Math.PI * 2.0);
                        startAngle += Math.PI * 2.0 * (startAngle >= Math.PI ? -1 : startAngle < -Math.PI ? 1 : 0);
                        var endAngle = startAngle + circumference;
                        var start = {x: Math.cos(startAngle), y: Math.sin(startAngle)};
                        var end = {x: Math.cos(endAngle), y: Math.sin(endAngle)};
                        var contains0 = (startAngle <= 0 && endAngle >= 0) || (startAngle <= Math.PI * 2.0 && Math.PI * 2.0 <= endAngle);
                        var contains90 = (startAngle <= Math.PI * 0.5 && Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 2.5 && Math.PI * 2.5 <= endAngle);
                        var contains180 = (startAngle <= -Math.PI && -Math.PI <= endAngle) || (startAngle <= Math.PI && Math.PI <= endAngle);
                        var contains270 = (startAngle <= -Math.PI * 0.5 && -Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 1.5 && Math.PI * 1.5 <= endAngle);
                        var cutout = cutoutPercentage / 100.0;
                        var min = {x: contains180 ? -1 : Math.min(start.x * (start.x < 0 ? 1 : cutout), end.x * (end.x < 0 ? 1 : cutout)), y: contains270 ? -1 : Math.min(start.y * (start.y < 0 ? 1 : cutout), end.y * (end.y < 0 ? 1 : cutout))};
                        var max = {x: contains0 ? 1 : Math.max(start.x * (start.x > 0 ? 1 : cutout), end.x * (end.x > 0 ? 1 : cutout)), y: contains90 ? 1 : Math.max(start.y * (start.y > 0 ? 1 : cutout), end.y * (end.y > 0 ? 1 : cutout))};
                        var size = {width: (max.x - min.x) * 0.5, height: (max.y - min.y) * 0.5};
                        minSize = Math.min(availableWidth / size.width, availableHeight / size.height);
                        offset = {x: (max.x + min.x) * -0.5, y: (max.y + min.y) * -0.5};
                    }

                    chart.borderWidth = me.getMaxBorderWidth(meta.data);
                    chart.outerRadius = Math.max((minSize - chart.borderWidth) / 2, 0);
                    chart.innerRadius = Math.max(cutoutPercentage ? (chart.outerRadius / 100) * (cutoutPercentage) : 0, 0);
                    chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();
                    chart.offsetX = offset.x * chart.outerRadius;
                    chart.offsetY = offset.y * chart.outerRadius;

                    meta.total = me.calculateTotal();

                    me.outerRadius = chart.outerRadius - (chart.radiusLength * me.getRingIndex(me.index));
                    me.innerRadius = Math.max(me.outerRadius - chart.radiusLength, 0);

                    helpers.each(meta.data, function(arc, index) {
                        me.updateElement(arc, index, reset);
                    });
                },

                updateElement: function(arc, index, reset) {
                    var me = this;
                    var chart = me.chart;
                    var chartArea = chart.chartArea;
                    var opts = chart.options;
                    var animationOpts = opts.animation;
                    var centerX = (chartArea.left + chartArea.right) / 2;
                    var centerY = (chartArea.top + chartArea.bottom) / 2;
                    var startAngle = opts.rotation; // non reset case handled later
                    var endAngle = opts.rotation; // non reset case handled later
                    var dataset = me.getDataset();
                    var circumference = reset && animationOpts.animateRotate ? 0 : arc.hidden ? 0 : me.calculateCircumference(dataset.data[index]) * (opts.circumference / (2.0 * Math.PI));
                    var innerRadius = reset && animationOpts.animateScale ? 0 : me.innerRadius;
                    var outerRadius = reset && animationOpts.animateScale ? 0 : me.outerRadius;
                    var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;

                    helpers.extend(arc, {
                        // Utility
                        _datasetIndex: me.index,
                        _index: index,

                        // Desired view properties
                        _model: {
                            x: centerX + chart.offsetX,
                            y: centerY + chart.offsetY,
                            startAngle: startAngle,
                            endAngle: endAngle,
                            circumference: circumference,
                            outerRadius: outerRadius,
                            innerRadius: innerRadius,
                            label: valueAtIndexOrDefault(dataset.label, index, chart.data.labels[index])
                        }
                    });

                    var model = arc._model;
                    // Resets the visual styles
                    this.removeHoverStyle(arc);

                    // Set correct angles if not resetting
                    if (!reset || !animationOpts.animateRotate) {
                        if (index === 0) {
                            model.startAngle = opts.rotation;
                        } else {
                            model.startAngle = me.getMeta().data[index - 1]._model.endAngle;
                        }

                        model.endAngle = model.startAngle + model.circumference;
                    }

                    arc.pivot();
                },

                removeHoverStyle: function(arc) {
                    Chart.DatasetController.prototype.removeHoverStyle.call(this, arc, this.chart.options.elements.arc);
                },

                calculateTotal: function() {
                    var dataset = this.getDataset();
                    var meta = this.getMeta();
                    var total = 0;
                    var value;

                    helpers.each(meta.data, function(element, index) {
                        value = dataset.data[index];
                        if (!isNaN(value) && !element.hidden) {
                            total += Math.abs(value);
                        }
                    });

                    /* if (total === 0) {
				total = NaN;
			}*/

                    return total;
                },

                calculateCircumference: function(value) {
                    var total = this.getMeta().total;
                    if (total > 0 && !isNaN(value)) {
                        return (Math.PI * 2.0) * (Math.abs(value) / total);
                    }
                    return 0;
                },

                // gets the max border or hover width to properly scale pie charts
                getMaxBorderWidth: function(arcs) {
                    var max = 0;
                    var index = this.index;
                    var length = arcs.length;
                    var borderWidth;
                    var hoverWidth;

                    for (var i = 0; i < length; i++) {
                        borderWidth = arcs[i]._model ? arcs[i]._model.borderWidth : 0;
                        hoverWidth = arcs[i]._chart ? arcs[i]._chart.config.data.datasets[index].hoverBorderWidth : 0;

                        max = borderWidth > max ? borderWidth : max;
                        max = hoverWidth > max ? hoverWidth : max;
                    }
                    return max;
                }
            });
        };

    },{"25":25,"40":40,"45":45}],18:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var elements = require(40);
        var helpers = require(45);

        defaults._set('line', {
            showLines: true,
            spanGaps: false,

            hover: {
                mode: 'label'
            },

            scales: {
                xAxes: [{
                    type: 'category',
                    id: 'x-axis-0'
                }],
                yAxes: [{
                    type: 'linear',
                    id: 'y-axis-0'
                }]
            }
        });

        module.exports = function(Chart) {

            function lineEnabled(dataset, options) {
                return helpers.valueOrDefault(dataset.showLine, options.showLines);
            }

            Chart.controllers.line = Chart.DatasetController.extend({

                datasetElementType: elements.Line,

                dataElementType: elements.Point,

                update: function(reset) {
                    var me = this;
                    var meta = me.getMeta();
                    var line = meta.dataset;
                    var points = meta.data || [];
                    var options = me.chart.options;
                    var lineElementOptions = options.elements.line;
                    var scale = me.getScaleForId(meta.yAxisID);
                    var i, ilen, custom;
                    var dataset = me.getDataset();
                    var showLine = lineEnabled(dataset, options);

                    // Update Line
                    if (showLine) {
                        custom = line.custom || {};

                        // Compatibility: If the properties are defined with only the old name, use those values
                        if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
                            dataset.lineTension = dataset.tension;
                        }

                        // Utility
                        line._scale = scale;
                        line._datasetIndex = me.index;
                        // Data
                        line._children = points;
                        // Model
                        line._model = {
                            // Appearance
                            // The default behavior of lines is to break at null values, according
                            // to https://github.com/chartjs/Chart.js/issues/2435#issuecomment-216718158
                            // This option gives lines the ability to span gaps
                            spanGaps: dataset.spanGaps ? dataset.spanGaps : options.spanGaps,
                            tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, lineElementOptions.tension),
                            backgroundColor: custom.backgroundColor ? custom.backgroundColor : (dataset.backgroundColor || lineElementOptions.backgroundColor),
                            borderWidth: custom.borderWidth ? custom.borderWidth : (dataset.borderWidth || lineElementOptions.borderWidth),
                            borderColor: custom.borderColor ? custom.borderColor : (dataset.borderColor || lineElementOptions.borderColor),
                            borderCapStyle: custom.borderCapStyle ? custom.borderCapStyle : (dataset.borderCapStyle || lineElementOptions.borderCapStyle),
                            borderDash: custom.borderDash ? custom.borderDash : (dataset.borderDash || lineElementOptions.borderDash),
                            borderDashOffset: custom.borderDashOffset ? custom.borderDashOffset : (dataset.borderDashOffset || lineElementOptions.borderDashOffset),
                            borderJoinStyle: custom.borderJoinStyle ? custom.borderJoinStyle : (dataset.borderJoinStyle || lineElementOptions.borderJoinStyle),
                            fill: custom.fill ? custom.fill : (dataset.fill !== undefined ? dataset.fill : lineElementOptions.fill),
                            steppedLine: custom.steppedLine ? custom.steppedLine : helpers.valueOrDefault(dataset.steppedLine, lineElementOptions.stepped),
                            cubicInterpolationMode: custom.cubicInterpolationMode ? custom.cubicInterpolationMode : helpers.valueOrDefault(dataset.cubicInterpolationMode, lineElementOptions.cubicInterpolationMode),
                        };

                        line.pivot();
                    }

                    // Update Points
                    for (i = 0, ilen = points.length; i < ilen; ++i) {
                        me.updateElement(points[i], i, reset);
                    }

                    if (showLine && line._model.tension !== 0) {
                        me.updateBezierControlPoints();
                    }

                    // Now pivot the point for animation
                    for (i = 0, ilen = points.length; i < ilen; ++i) {
                        points[i].pivot();
                    }
                },

                getPointBackgroundColor: function(point, index) {
                    var backgroundColor = this.chart.options.elements.point.backgroundColor;
                    var dataset = this.getDataset();
                    var custom = point.custom || {};

                    if (custom.backgroundColor) {
                        backgroundColor = custom.backgroundColor;
                    } else if (dataset.pointBackgroundColor) {
                        backgroundColor = helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, backgroundColor);
                    } else if (dataset.backgroundColor) {
                        backgroundColor = dataset.backgroundColor;
                    }

                    return backgroundColor;
                },

                getPointBorderColor: function(point, index) {
                    var borderColor = this.chart.options.elements.point.borderColor;
                    var dataset = this.getDataset();
                    var custom = point.custom || {};

                    if (custom.borderColor) {
                        borderColor = custom.borderColor;
                    } else if (dataset.pointBorderColor) {
                        borderColor = helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, borderColor);
                    } else if (dataset.borderColor) {
                        borderColor = dataset.borderColor;
                    }

                    return borderColor;
                },

                getPointBorderWidth: function(point, index) {
                    var borderWidth = this.chart.options.elements.point.borderWidth;
                    var dataset = this.getDataset();
                    var custom = point.custom || {};

                    if (!isNaN(custom.borderWidth)) {
                        borderWidth = custom.borderWidth;
                    } else if (!isNaN(dataset.pointBorderWidth) || helpers.isArray(dataset.pointBorderWidth)) {
                        borderWidth = helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, borderWidth);
                    } else if (!isNaN(dataset.borderWidth)) {
                        borderWidth = dataset.borderWidth;
                    }

                    return borderWidth;
                },

                updateElement: function(point, index, reset) {
                    var me = this;
                    var meta = me.getMeta();
                    var custom = point.custom || {};
                    var dataset = me.getDataset();
                    var datasetIndex = me.index;
                    var value = dataset.data[index];
                    var yScale = me.getScaleForId(meta.yAxisID);
                    var xScale = me.getScaleForId(meta.xAxisID);
                    var pointOptions = me.chart.options.elements.point;
                    var x, y;

                    // Compatibility: If the properties are defined with only the old name, use those values
                    if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
                        dataset.pointRadius = dataset.radius;
                    }
                    if ((dataset.hitRadius !== undefined) && (dataset.pointHitRadius === undefined)) {
                        dataset.pointHitRadius = dataset.hitRadius;
                    }

                    x = xScale.getPixelForValue(typeof value === 'object' ? value : NaN, index, datasetIndex);
                    y = reset ? yScale.getBasePixel() : me.calculatePointY(value, index, datasetIndex);

                    // Utility
                    point._xScale = xScale;
                    point._yScale = yScale;
                    point._datasetIndex = datasetIndex;
                    point._index = index;

                    // Desired view properties
                    point._model = {
                        x: x,
                        y: y,
                        skip: custom.skip || isNaN(x) || isNaN(y),
                        // Appearance
                        radius: custom.radius || helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointOptions.radius),
                        pointStyle: custom.pointStyle || helpers.valueAtIndexOrDefault(dataset.pointStyle, index, pointOptions.pointStyle),
                        backgroundColor: me.getPointBackgroundColor(point, index),
                        borderColor: me.getPointBorderColor(point, index),
                        borderWidth: me.getPointBorderWidth(point, index),
                        tension: meta.dataset._model ? meta.dataset._model.tension : 0,
                        steppedLine: meta.dataset._model ? meta.dataset._model.steppedLine : false,
                        // Tooltip
                        hitRadius: custom.hitRadius || helpers.valueAtIndexOrDefault(dataset.pointHitRadius, index, pointOptions.hitRadius)
                    };
                },

                calculatePointY: function(value, index, datasetIndex) {
                    var me = this;
                    var chart = me.chart;
                    var meta = me.getMeta();
                    var yScale = me.getScaleForId(meta.yAxisID);
                    var sumPos = 0;
                    var sumNeg = 0;
                    var i, ds, dsMeta;

                    if (yScale.options.stacked) {
                        for (i = 0; i < datasetIndex; i++) {
                            ds = chart.data.datasets[i];
                            dsMeta = chart.getDatasetMeta(i);
                            if (dsMeta.type === 'line' && dsMeta.yAxisID === yScale.id && chart.isDatasetVisible(i)) {
                                var stackedRightValue = Number(yScale.getRightValue(ds.data[index]));
                                if (stackedRightValue < 0) {
                                    sumNeg += stackedRightValue || 0;
                                } else {
                                    sumPos += stackedRightValue || 0;
                                }
                            }
                        }

                        var rightValue = Number(yScale.getRightValue(value));
                        if (rightValue < 0) {
                            return yScale.getPixelForValue(sumNeg + rightValue);
                        }
                        return yScale.getPixelForValue(sumPos + rightValue);
                    }

                    return yScale.getPixelForValue(value);
                },

                updateBezierControlPoints: function() {
                    var me = this;
                    var meta = me.getMeta();
                    var area = me.chart.chartArea;
                    var points = (meta.data || []);
                    var i, ilen, point, model, controlPoints;

                    // Only consider points that are drawn in case the spanGaps option is used
                    if (meta.dataset._model.spanGaps) {
                        points = points.filter(function(pt) {
                            return !pt._model.skip;
                        });
                    }

                    function capControlPoint(pt, min, max) {
                        return Math.max(Math.min(pt, max), min);
                    }

                    if (meta.dataset._model.cubicInterpolationMode === 'monotone') {
                        helpers.splineCurveMonotone(points);
                    } else {
                        for (i = 0, ilen = points.length; i < ilen; ++i) {
                            point = points[i];
                            model = point._model;
                            controlPoints = helpers.splineCurve(
                                helpers.previousItem(points, i)._model,
                                model,
                                helpers.nextItem(points, i)._model,
                                meta.dataset._model.tension
                            );
                            model.controlPointPreviousX = controlPoints.previous.x;
                            model.controlPointPreviousY = controlPoints.previous.y;
                            model.controlPointNextX = controlPoints.next.x;
                            model.controlPointNextY = controlPoints.next.y;
                        }
                    }

                    if (me.chart.options.elements.line.capBezierPoints) {
                        for (i = 0, ilen = points.length; i < ilen; ++i) {
                            model = points[i]._model;
                            model.controlPointPreviousX = capControlPoint(model.controlPointPreviousX, area.left, area.right);
                            model.controlPointPreviousY = capControlPoint(model.controlPointPreviousY, area.top, area.bottom);
                            model.controlPointNextX = capControlPoint(model.controlPointNextX, area.left, area.right);
                            model.controlPointNextY = capControlPoint(model.controlPointNextY, area.top, area.bottom);
                        }
                    }
                },

                draw: function() {
                    var me = this;
                    var chart = me.chart;
                    var meta = me.getMeta();
                    var points = meta.data || [];
                    var area = chart.chartArea;
                    var ilen = points.length;
                    var i = 0;

                    helpers.canvas.clipArea(chart.ctx, area);

                    if (lineEnabled(me.getDataset(), chart.options)) {
                        meta.dataset.draw();
                    }

                    helpers.canvas.unclipArea(chart.ctx);

                    // Draw the points
                    for (; i < ilen; ++i) {
                        points[i].draw(area);
                    }
                },

                setHoverStyle: function(point) {
                    // Point
                    var dataset = this.chart.data.datasets[point._datasetIndex];
                    var index = point._index;
                    var custom = point.custom || {};
                    var model = point._model;

                    model.radius = custom.hoverRadius || helpers.valueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
                    model.backgroundColor = custom.hoverBackgroundColor || helpers.valueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
                    model.borderColor = custom.hoverBorderColor || helpers.valueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(model.borderColor));
                    model.borderWidth = custom.hoverBorderWidth || helpers.valueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, model.borderWidth);
                },

                removeHoverStyle: function(point) {
                    var me = this;
                    var dataset = me.chart.data.datasets[point._datasetIndex];
                    var index = point._index;
                    var custom = point.custom || {};
                    var model = point._model;

                    // Compatibility: If the properties are defined with only the old name, use those values
                    if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
                        dataset.pointRadius = dataset.radius;
                    }

                    model.radius = custom.radius || helpers.valueAtIndexOrDefault(dataset.pointRadius, index, me.chart.options.elements.point.radius);
                    model.backgroundColor = me.getPointBackgroundColor(point, index);
                    model.borderColor = me.getPointBorderColor(point, index);
                    model.borderWidth = me.getPointBorderWidth(point, index);
                }
            });
        };

    },{"25":25,"40":40,"45":45}],19:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var elements = require(40);
        var helpers = require(45);

        defaults._set('polarArea', {
            scale: {
                type: 'radialLinear',
                angleLines: {
                    display: false
                },
                gridLines: {
                    circular: true
                },
                pointLabels: {
                    display: false
                },
                ticks: {
                    beginAtZero: true
                }
            },

            // Boolean - Whether to animate the rotation of the chart
            animation: {
                animateRotate: true,
                animateScale: true
            },

            startAngle: -0.5 * Math.PI,
            legendCallback: function(chart) {
                var text = [];
                text.push('<ul class="' + chart.id + '-legend">');

                var data = chart.data;
                var datasets = data.datasets;
                var labels = data.labels;

                if (datasets.length) {
                    for (var i = 0; i < datasets[0].data.length; ++i) {
                        text.push('<li><span style="background-color:' + datasets[0].backgroundColor[i] + '"></span>');
                        if (labels[i]) {
                            text.push(labels[i]);
                        }
                        text.push('</li>');
                    }
                }

                text.push('</ul>');
                return text.join('');
            },
            legend: {
                labels: {
                    generateLabels: function(chart) {
                        var data = chart.data;
                        if (data.labels.length && data.datasets.length) {
                            return data.labels.map(function(label, i) {
                                var meta = chart.getDatasetMeta(0);
                                var ds = data.datasets[0];
                                var arc = meta.data[i];
                                var custom = arc.custom || {};
                                var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
                                var arcOpts = chart.options.elements.arc;
                                var fill = custom.backgroundColor ? custom.backgroundColor : valueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor);
                                var stroke = custom.borderColor ? custom.borderColor : valueAtIndexOrDefault(ds.borderColor, i, arcOpts.borderColor);
                                var bw = custom.borderWidth ? custom.borderWidth : valueAtIndexOrDefault(ds.borderWidth, i, arcOpts.borderWidth);

                                return {
                                    text: label,
                                    fillStyle: fill,
                                    strokeStyle: stroke,
                                    lineWidth: bw,
                                    hidden: isNaN(ds.data[i]) || meta.data[i].hidden,

                                    // Extra data used for toggling the correct item
                                    index: i
                                };
                            });
                        }
                        return [];
                    }
                },

                onClick: function(e, legendItem) {
                    var index = legendItem.index;
                    var chart = this.chart;
                    var i, ilen, meta;

                    for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
                        meta = chart.getDatasetMeta(i);
                        meta.data[index].hidden = !meta.data[index].hidden;
                    }

                    chart.update();
                }
            },

            // Need to override these to give a nice default
            tooltips: {
                callbacks: {
                    title: function() {
                        return '';
                    },
                    label: function(item, data) {
                        return data.labels[item.index] + ': ' + item.yLabel;
                    }
                }
            }
        });

        module.exports = function(Chart) {

            Chart.controllers.polarArea = Chart.DatasetController.extend({

                dataElementType: elements.Arc,

                linkScales: helpers.noop,

                update: function(reset) {
                    var me = this;
                    var chart = me.chart;
                    var chartArea = chart.chartArea;
                    var meta = me.getMeta();
                    var opts = chart.options;
                    var arcOpts = opts.elements.arc;
                    var minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top);
                    chart.outerRadius = Math.max((minSize - arcOpts.borderWidth / 2) / 2, 0);
                    chart.innerRadius = Math.max(opts.cutoutPercentage ? (chart.outerRadius / 100) * (opts.cutoutPercentage) : 1, 0);
                    chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();

                    me.outerRadius = chart.outerRadius - (chart.radiusLength * me.index);
                    me.innerRadius = me.outerRadius - chart.radiusLength;

                    meta.count = me.countVisibleElements();

                    helpers.each(meta.data, function(arc, index) {
                        me.updateElement(arc, index, reset);
                    });
                },

                updateElement: function(arc, index, reset) {
                    var me = this;
                    var chart = me.chart;
                    var dataset = me.getDataset();
                    var opts = chart.options;
                    var animationOpts = opts.animation;
                    var scale = chart.scale;
                    var labels = chart.data.labels;

                    var circumference = me.calculateCircumference(dataset.data[index]);
                    var centerX = scale.xCenter;
                    var centerY = scale.yCenter;

                    // If there is NaN data before us, we need to calculate the starting angle correctly.
                    // We could be way more efficient here, but its unlikely that the polar area chart will have a lot of data
                    var visibleCount = 0;
                    var meta = me.getMeta();
                    for (var i = 0; i < index; ++i) {
                        if (!isNaN(dataset.data[i]) && !meta.data[i].hidden) {
                            ++visibleCount;
                        }
                    }

                    // var negHalfPI = -0.5 * Math.PI;
                    var datasetStartAngle = opts.startAngle;
                    var distance = arc.hidden ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
                    var startAngle = datasetStartAngle + (circumference * visibleCount);
                    var endAngle = startAngle + (arc.hidden ? 0 : circumference);

                    var resetRadius = animationOpts.animateScale ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);

                    helpers.extend(arc, {
                        // Utility
                        _datasetIndex: me.index,
                        _index: index,
                        _scale: scale,

                        // Desired view properties
                        _model: {
                            x: centerX,
                            y: centerY,
                            innerRadius: 0,
                            outerRadius: reset ? resetRadius : distance,
                            startAngle: reset && animationOpts.animateRotate ? datasetStartAngle : startAngle,
                            endAngle: reset && animationOpts.animateRotate ? datasetStartAngle : endAngle,
                            label: helpers.valueAtIndexOrDefault(labels, index, labels[index])
                        }
                    });

                    // Apply border and fill style
                    me.removeHoverStyle(arc);

                    arc.pivot();
                },

                removeHoverStyle: function(arc) {
                    Chart.DatasetController.prototype.removeHoverStyle.call(this, arc, this.chart.options.elements.arc);
                },

                countVisibleElements: function() {
                    var dataset = this.getDataset();
                    var meta = this.getMeta();
                    var count = 0;

                    helpers.each(meta.data, function(element, index) {
                        if (!isNaN(dataset.data[index]) && !element.hidden) {
                            count++;
                        }
                    });

                    return count;
                },

                calculateCircumference: function(value) {
                    var count = this.getMeta().count;
                    if (count > 0 && !isNaN(value)) {
                        return (2 * Math.PI) / count;
                    }
                    return 0;
                }
            });
        };

    },{"25":25,"40":40,"45":45}],20:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var elements = require(40);
        var helpers = require(45);

        defaults._set('radar', {
            scale: {
                type: 'radialLinear'
            },
            elements: {
                line: {
                    tension: 0 // no bezier in radar
                }
            }
        });

        module.exports = function(Chart) {

            Chart.controllers.radar = Chart.DatasetController.extend({

                datasetElementType: elements.Line,

                dataElementType: elements.Point,

                linkScales: helpers.noop,

                update: function(reset) {
                    var me = this;
                    var meta = me.getMeta();
                    var line = meta.dataset;
                    var points = meta.data;
                    var custom = line.custom || {};
                    var dataset = me.getDataset();
                    var lineElementOptions = me.chart.options.elements.line;
                    var scale = me.chart.scale;

                    // Compatibility: If the properties are defined with only the old name, use those values
                    if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
                        dataset.lineTension = dataset.tension;
                    }

                    helpers.extend(meta.dataset, {
                        // Utility
                        _datasetIndex: me.index,
                        _scale: scale,
                        // Data
                        _children: points,
                        _loop: true,
                        // Model
                        _model: {
                            // Appearance
                            tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, lineElementOptions.tension),
                            backgroundColor: custom.backgroundColor ? custom.backgroundColor : (dataset.backgroundColor || lineElementOptions.backgroundColor),
                            borderWidth: custom.borderWidth ? custom.borderWidth : (dataset.borderWidth || lineElementOptions.borderWidth),
                            borderColor: custom.borderColor ? custom.borderColor : (dataset.borderColor || lineElementOptions.borderColor),
                            fill: custom.fill ? custom.fill : (dataset.fill !== undefined ? dataset.fill : lineElementOptions.fill),
                            borderCapStyle: custom.borderCapStyle ? custom.borderCapStyle : (dataset.borderCapStyle || lineElementOptions.borderCapStyle),
                            borderDash: custom.borderDash ? custom.borderDash : (dataset.borderDash || lineElementOptions.borderDash),
                            borderDashOffset: custom.borderDashOffset ? custom.borderDashOffset : (dataset.borderDashOffset || lineElementOptions.borderDashOffset),
                            borderJoinStyle: custom.borderJoinStyle ? custom.borderJoinStyle : (dataset.borderJoinStyle || lineElementOptions.borderJoinStyle),
                        }
                    });

                    meta.dataset.pivot();

                    // Update Points
                    helpers.each(points, function(point, index) {
                        me.updateElement(point, index, reset);
                    }, me);

                    // Update bezier control points
                    me.updateBezierControlPoints();
                },
                updateElement: function(point, index, reset) {
                    var me = this;
                    var custom = point.custom || {};
                    var dataset = me.getDataset();
                    var scale = me.chart.scale;
                    var pointElementOptions = me.chart.options.elements.point;
                    var pointPosition = scale.getPointPositionForValue(index, dataset.data[index]);

                    // Compatibility: If the properties are defined with only the old name, use those values
                    if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
                        dataset.pointRadius = dataset.radius;
                    }
                    if ((dataset.hitRadius !== undefined) && (dataset.pointHitRadius === undefined)) {
                        dataset.pointHitRadius = dataset.hitRadius;
                    }

                    helpers.extend(point, {
                        // Utility
                        _datasetIndex: me.index,
                        _index: index,
                        _scale: scale,

                        // Desired view properties
                        _model: {
                            x: reset ? scale.xCenter : pointPosition.x, // value not used in dataset scale, but we want a consistent API between scales
                            y: reset ? scale.yCenter : pointPosition.y,

                            // Appearance
                            tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, me.chart.options.elements.line.tension),
                            radius: custom.radius ? custom.radius : helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointElementOptions.radius),
                            backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, pointElementOptions.backgroundColor),
                            borderColor: custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, pointElementOptions.borderColor),
                            borderWidth: custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, pointElementOptions.borderWidth),
                            pointStyle: custom.pointStyle ? custom.pointStyle : helpers.valueAtIndexOrDefault(dataset.pointStyle, index, pointElementOptions.pointStyle),

                            // Tooltip
                            hitRadius: custom.hitRadius ? custom.hitRadius : helpers.valueAtIndexOrDefault(dataset.pointHitRadius, index, pointElementOptions.hitRadius)
                        }
                    });

                    point._model.skip = custom.skip ? custom.skip : (isNaN(point._model.x) || isNaN(point._model.y));
                },
                updateBezierControlPoints: function() {
                    var chartArea = this.chart.chartArea;
                    var meta = this.getMeta();

                    helpers.each(meta.data, function(point, index) {
                        var model = point._model;
                        var controlPoints = helpers.splineCurve(
                            helpers.previousItem(meta.data, index, true)._model,
                            model,
                            helpers.nextItem(meta.data, index, true)._model,
                            model.tension
                        );

                        // Prevent the bezier going outside of the bounds of the graph
                        model.controlPointPreviousX = Math.max(Math.min(controlPoints.previous.x, chartArea.right), chartArea.left);
                        model.controlPointPreviousY = Math.max(Math.min(controlPoints.previous.y, chartArea.bottom), chartArea.top);

                        model.controlPointNextX = Math.max(Math.min(controlPoints.next.x, chartArea.right), chartArea.left);
                        model.controlPointNextY = Math.max(Math.min(controlPoints.next.y, chartArea.bottom), chartArea.top);

                        // Now pivot the point for animation
                        point.pivot();
                    });
                },

                setHoverStyle: function(point) {
                    // Point
                    var dataset = this.chart.data.datasets[point._datasetIndex];
                    var custom = point.custom || {};
                    var index = point._index;
                    var model = point._model;

                    model.radius = custom.hoverRadius ? custom.hoverRadius : helpers.valueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
                    model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : helpers.valueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
                    model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : helpers.valueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(model.borderColor));
                    model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : helpers.valueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, model.borderWidth);
                },

                removeHoverStyle: function(point) {
                    var dataset = this.chart.data.datasets[point._datasetIndex];
                    var custom = point.custom || {};
                    var index = point._index;
                    var model = point._model;
                    var pointElementOptions = this.chart.options.elements.point;

                    model.radius = custom.radius ? custom.radius : helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointElementOptions.radius);
                    model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, pointElementOptions.backgroundColor);
                    model.borderColor = custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, pointElementOptions.borderColor);
                    model.borderWidth = custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, pointElementOptions.borderWidth);
                }
            });
        };

    },{"25":25,"40":40,"45":45}],21:[function(require,module,exports){
        'use strict';

        var defaults = require(25);

        defaults._set('scatter', {
            hover: {
                mode: 'single'
            },

            scales: {
                xAxes: [{
                    id: 'x-axis-1',    // need an ID so datasets can reference the scale
                    type: 'linear',    // scatter should not use a category axis
                    position: 'bottom'
                }],
                yAxes: [{
                    id: 'y-axis-1',
                    type: 'linear',
                    position: 'left'
                }]
            },

            showLines: false,

            tooltips: {
                callbacks: {
                    title: function() {
                        return '';     // doesn't make sense for scatter since data are formatted as a point
                    },
                    label: function(item) {
                        return '(' + item.xLabel + ', ' + item.yLabel + ')';
                    }
                }
            }
        });

        module.exports = function(Chart) {

            // Scatter charts use line controllers
            Chart.controllers.scatter = Chart.controllers.line;

        };

    },{"25":25}],22:[function(require,module,exports){
        /* global window: false */
        'use strict';

        var defaults = require(25);
        var Element = require(26);
        var helpers = require(45);

        defaults._set('global', {
            animation: {
                duration: 1000,
                easing: 'easeOutQuart',
                onProgress: helpers.noop,
                onComplete: helpers.noop
            }
        });

        module.exports = function(Chart) {

            Chart.Animation = Element.extend({
                chart: null, // the animation associated chart instance
                currentStep: 0, // the current animation step
                numSteps: 60, // default number of steps
                easing: '', // the easing to use for this animation
                render: null, // render function used by the animation service

                onAnimationProgress: null, // user specified callback to fire on each step of the animation
                onAnimationComplete: null, // user specified callback to fire when the animation finishes
            });

            Chart.animationService = {
                frameDuration: 17,
                animations: [],
                dropFrames: 0,
                request: null,

                /**
                 * @param {Chart} chart - The chart to animate.
                 * @param {Chart.Animation} animation - The animation that we will animate.
                 * @param {Number} duration - The animation duration in ms.
                 * @param {Boolean} lazy - if true, the chart is not marked as animating to enable more responsive interactions
                 */
                addAnimation: function(chart, animation, duration, lazy) {
                    var animations = this.animations;
                    var i, ilen;

                    animation.chart = chart;

                    if (!lazy) {
                        chart.animating = true;
                    }

                    for (i = 0, ilen = animations.length; i < ilen; ++i) {
                        if (animations[i].chart === chart) {
                            animations[i] = animation;
                            return;
                        }
                    }

                    animations.push(animation);

                    // If there are no animations queued, manually kickstart a digest, for lack of a better word
                    if (animations.length === 1) {
                        this.requestAnimationFrame();
                    }
                },

                cancelAnimation: function(chart) {
                    var index = helpers.findIndex(this.animations, function(animation) {
                        return animation.chart === chart;
                    });

                    if (index !== -1) {
                        this.animations.splice(index, 1);
                        chart.animating = false;
                    }
                },

                requestAnimationFrame: function() {
                    var me = this;
                    if (me.request === null) {
                        // Skip animation frame requests until the active one is executed.
                        // This can happen when processing mouse events, e.g. 'mousemove'
                        // and 'mouseout' events will trigger multiple renders.
                        me.request = helpers.requestAnimFrame.call(window, function() {
                            me.request = null;
                            me.startDigest();
                        });
                    }
                },

                /**
                 * @private
                 */
                startDigest: function() {
                    var me = this;
                    var startTime = Date.now();
                    var framesToDrop = 0;

                    if (me.dropFrames > 1) {
                        framesToDrop = Math.floor(me.dropFrames);
                        me.dropFrames = me.dropFrames % 1;
                    }

                    me.advance(1 + framesToDrop);

                    var endTime = Date.now();

                    me.dropFrames += (endTime - startTime) / me.frameDuration;

                    // Do we have more stuff to animate?
                    if (me.animations.length > 0) {
                        me.requestAnimationFrame();
                    }
                },

                /**
                 * @private
                 */
                advance: function(count) {
                    var animations = this.animations;
                    var animation, chart;
                    var i = 0;

                    while (i < animations.length) {
                        animation = animations[i];
                        chart = animation.chart;

                        animation.currentStep = (animation.currentStep || 0) + count;
                        animation.currentStep = Math.min(animation.currentStep, animation.numSteps);

                        helpers.callback(animation.render, [chart, animation], chart);
                        helpers.callback(animation.onAnimationProgress, [animation], chart);

                        if (animation.currentStep >= animation.numSteps) {
                            helpers.callback(animation.onAnimationComplete, [animation], chart);
                            chart.animating = false;
                            animations.splice(i, 1);
                        } else {
                            ++i;
                        }
                    }
                }
            };

            /**
             * Provided for backward compatibility, use Chart.Animation instead
             * @prop Chart.Animation#animationObject
             * @deprecated since version 2.6.0
             * @todo remove at version 3
             */
            Object.defineProperty(Chart.Animation.prototype, 'animationObject', {
                get: function() {
                    return this;
                }
            });

            /**
             * Provided for backward compatibility, use Chart.Animation#chart instead
             * @prop Chart.Animation#chartInstance
             * @deprecated since version 2.6.0
             * @todo remove at version 3
             */
            Object.defineProperty(Chart.Animation.prototype, 'chartInstance', {
                get: function() {
                    return this.chart;
                },
                set: function(value) {
                    this.chart = value;
                }
            });

        };

    },{"25":25,"26":26,"45":45}],23:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var helpers = require(45);
        var Interaction = require(28);
        var layouts = require(30);
        var platform = require(48);
        var plugins = require(31);

        module.exports = function(Chart) {

            // Create a dictionary of chart types, to allow for extension of existing types
            Chart.types = {};

            // Store a reference to each instance - allowing us to globally resize chart instances on window resize.
            // Destroy method on the chart will remove the instance of the chart from this reference.
            Chart.instances = {};

            // Controllers available for dataset visualization eg. bar, line, slice, etc.
            Chart.controllers = {};

            /**
             * Initializes the given config with global and chart default values.
             */
            function initConfig(config) {
                config = config || {};

                // Do NOT use configMerge() for the data object because this method merges arrays
                // and so would change references to labels and datasets, preventing data updates.
                var data = config.data = config.data || {};
                data.datasets = data.datasets || [];
                data.labels = data.labels || [];

                config.options = helpers.configMerge(
                    defaults.global,
                    defaults[config.type],
                    config.options || {});

                return config;
            }

            /**
             * Updates the config of the chart
             * @param chart {Chart} chart to update the options for
             */
            function updateConfig(chart) {
                var newOptions = chart.options;

                helpers.each(chart.scales, function(scale) {
                    layouts.removeBox(chart, scale);
                });

                newOptions = helpers.configMerge(
                    Chart.defaults.global,
                    Chart.defaults[chart.config.type],
                    newOptions);

                chart.options = chart.config.options = newOptions;
                chart.ensureScalesHaveIDs();
                chart.buildOrUpdateScales();
                // Tooltip
                chart.tooltip._options = newOptions.tooltips;
                chart.tooltip.initialize();
            }

            function positionIsHorizontal(position) {
                return position === 'top' || position === 'bottom';
            }

            helpers.extend(Chart.prototype, /** @lends Chart */ {
                /**
                 * @private
                 */
                construct: function(item, config) {
                    var me = this;

                    config = initConfig(config);

                    var context = platform.acquireContext(item, config);
                    var canvas = context && context.canvas;
                    var height = canvas && canvas.height;
                    var width = canvas && canvas.width;

                    me.id = helpers.uid();
                    me.ctx = context;
                    me.canvas = canvas;
                    me.config = config;
                    me.width = width;
                    me.height = height;
                    me.aspectRatio = height ? width / height : null;
                    me.options = config.options;
                    me._bufferedRender = false;

                    /**
                     * Provided for backward compatibility, Chart and Chart.Controller have been merged,
                     * the "instance" still need to be defined since it might be called from plugins.
                     * @prop Chart#chart
                     * @deprecated since version 2.6.0
                     * @todo remove at version 3
                     * @private
                     */
                    me.chart = me;
                    me.controller = me; // chart.chart.controller #inception

                    // Add the chart instance to the global namespace
                    Chart.instances[me.id] = me;

                    // Define alias to the config data: `chart.data === chart.config.data`
                    Object.defineProperty(me, 'data', {
                        get: function() {
                            return me.config.data;
                        },
                        set: function(value) {
                            me.config.data = value;
                        }
                    });

                    if (!context || !canvas) {
                        // The given item is not a compatible context2d element, let's return before finalizing
                        // the chart initialization but after setting basic chart / controller properties that
                        // can help to figure out that the chart is not valid (e.g chart.canvas !== null);
                        // https://github.com/chartjs/Chart.js/issues/2807
                        console.error("Failed to create chart: can't acquire context from the given item");
                        return;
                    }

                    me.initialize();
                    me.update();
                },

                /**
                 * @private
                 */
                initialize: function() {
                    var me = this;

                    // Before init plugin notification
                    plugins.notify(me, 'beforeInit');

                    helpers.retinaScale(me, me.options.devicePixelRatio);

                    me.bindEvents();

                    if (me.options.responsive) {
                        // Initial resize before chart draws (must be silent to preserve initial animations).
                        me.resize(true);
                    }

                    // Make sure scales have IDs and are built before we build any controllers.
                    me.ensureScalesHaveIDs();
                    me.buildOrUpdateScales();
                    me.initToolTip();

                    // After init plugin notification
                    plugins.notify(me, 'afterInit');

                    return me;
                },

                clear: function() {
                    helpers.canvas.clear(this);
                    return this;
                },

                stop: function() {
                    // Stops any current animation loop occurring
                    Chart.animationService.cancelAnimation(this);
                    return this;
                },

                resize: function(silent) {
                    var me = this;
                    var options = me.options;
                    var canvas = me.canvas;
                    var aspectRatio = (options.maintainAspectRatio && me.aspectRatio) || null;

                    // the canvas render width and height will be casted to integers so make sure that
                    // the canvas display style uses the same integer values to avoid blurring effect.

                    // Set to 0 instead of canvas.size because the size defaults to 300x150 if the element is collased
                    var newWidth = Math.max(0, Math.floor(helpers.getMaximumWidth(canvas)));
                    var newHeight = Math.max(0, Math.floor(aspectRatio ? newWidth / aspectRatio : helpers.getMaximumHeight(canvas)));

                    if (me.width === newWidth && me.height === newHeight) {
                        return;
                    }

                    canvas.width = me.width = newWidth;
                    canvas.height = me.height = newHeight;
                    canvas.style.width = newWidth + 'px';
                    canvas.style.height = newHeight + 'px';

                    helpers.retinaScale(me, options.devicePixelRatio);

                    if (!silent) {
                        // Notify any plugins about the resize
                        var newSize = {width: newWidth, height: newHeight};
                        plugins.notify(me, 'resize', [newSize]);

                        // Notify of resize
                        if (me.options.onResize) {
                            me.options.onResize(me, newSize);
                        }

                        me.stop();
                        me.update(me.options.responsiveAnimationDuration);
                    }
                },

                ensureScalesHaveIDs: function() {
                    var options = this.options;
                    var scalesOptions = options.scales || {};
                    var scaleOptions = options.scale;

                    helpers.each(scalesOptions.xAxes, function(xAxisOptions, index) {
                        xAxisOptions.id = xAxisOptions.id || ('x-axis-' + index);
                    });

                    helpers.each(scalesOptions.yAxes, function(yAxisOptions, index) {
                        yAxisOptions.id = yAxisOptions.id || ('y-axis-' + index);
                    });

                    if (scaleOptions) {
                        scaleOptions.id = scaleOptions.id || 'scale';
                    }
                },

                /**
                 * Builds a map of scale ID to scale object for future lookup.
                 */
                buildOrUpdateScales: function() {
                    var me = this;
                    var options = me.options;
                    var scales = me.scales || {};
                    var items = [];
                    var updated = Object.keys(scales).reduce(function(obj, id) {
                        obj[id] = false;
                        return obj;
                    }, {});

                    if (options.scales) {
                        items = items.concat(
                            (options.scales.xAxes || []).map(function(xAxisOptions) {
                                return {options: xAxisOptions, dtype: 'category', dposition: 'bottom'};
                            }),
                            (options.scales.yAxes || []).map(function(yAxisOptions) {
                                return {options: yAxisOptions, dtype: 'linear', dposition: 'left'};
                            })
                        );
                    }

                    if (options.scale) {
                        items.push({
                            options: options.scale,
                            dtype: 'radialLinear',
                            isDefault: true,
                            dposition: 'chartArea'
                        });
                    }

                    helpers.each(items, function(item) {
                        var scaleOptions = item.options;
                        var id = scaleOptions.id;
                        var scaleType = helpers.valueOrDefault(scaleOptions.type, item.dtype);

                        if (positionIsHorizontal(scaleOptions.position) !== positionIsHorizontal(item.dposition)) {
                            scaleOptions.position = item.dposition;
                        }

                        updated[id] = true;
                        var scale = null;
                        if (id in scales && scales[id].type === scaleType) {
                            scale = scales[id];
                            scale.options = scaleOptions;
                            scale.ctx = me.ctx;
                            scale.chart = me;
                        } else {
                            var scaleClass = Chart.scaleService.getScaleConstructor(scaleType);
                            if (!scaleClass) {
                                return;
                            }
                            scale = new scaleClass({
                                id: id,
                                type: scaleType,
                                options: scaleOptions,
                                ctx: me.ctx,
                                chart: me
                            });
                            scales[scale.id] = scale;
                        }

                        scale.mergeTicksOptions();

                        // TODO(SB): I think we should be able to remove this custom case (options.scale)
                        // and consider it as a regular scale part of the "scales"" map only! This would
                        // make the logic easier and remove some useless? custom code.
                        if (item.isDefault) {
                            me.scale = scale;
                        }
                    });
                    // clear up discarded scales
                    helpers.each(updated, function(hasUpdated, id) {
                        if (!hasUpdated) {
                            delete scales[id];
                        }
                    });

                    me.scales = scales;

                    Chart.scaleService.addScalesToLayout(this);
                },

                buildOrUpdateControllers: function() {
                    var me = this;
                    var types = [];
                    var newControllers = [];

                    helpers.each(me.data.datasets, function(dataset, datasetIndex) {
                        var meta = me.getDatasetMeta(datasetIndex);
                        var type = dataset.type || me.config.type;

                        if (meta.type && meta.type !== type) {
                            me.destroyDatasetMeta(datasetIndex);
                            meta = me.getDatasetMeta(datasetIndex);
                        }
                        meta.type = type;

                        types.push(meta.type);

                        if (meta.controller) {
                            meta.controller.updateIndex(datasetIndex);
                            meta.controller.linkScales();
                        } else {
                            var ControllerClass = Chart.controllers[meta.type];
                            if (ControllerClass === undefined) {
                                throw new Error('"' + meta.type + '" is not a chart type.');
                            }

                            meta.controller = new ControllerClass(me, datasetIndex);
                            newControllers.push(meta.controller);
                        }
                    }, me);

                    return newControllers;
                },

                /**
                 * Reset the elements of all datasets
                 * @private
                 */
                resetElements: function() {
                    var me = this;
                    helpers.each(me.data.datasets, function(dataset, datasetIndex) {
                        me.getDatasetMeta(datasetIndex).controller.reset();
                    }, me);
                },

                /**
                 * Resets the chart back to it's state before the initial animation
                 */
                reset: function() {
                    this.resetElements();
                    this.tooltip.initialize();
                },

                update: function(config) {
                    var me = this;

                    if (!config || typeof config !== 'object') {
                        // backwards compatibility
                        config = {
                            duration: config,
                            lazy: arguments[1]
                        };
                    }

                    updateConfig(me);

                    // plugins options references might have change, let's invalidate the cache
                    // https://github.com/chartjs/Chart.js/issues/5111#issuecomment-355934167
                    plugins._invalidate(me);

                    if (plugins.notify(me, 'beforeUpdate') === false) {
                        return;
                    }

                    // In case the entire data object changed
                    me.tooltip._data = me.data;

                    // Make sure dataset controllers are updated and new controllers are reset
                    var newControllers = me.buildOrUpdateControllers();

                    // Make sure all dataset controllers have correct meta data counts
                    helpers.each(me.data.datasets, function(dataset, datasetIndex) {
                        me.getDatasetMeta(datasetIndex).controller.buildOrUpdateElements();
                    }, me);

                    me.updateLayout();

                    // Can only reset the new controllers after the scales have been updated
                    if (me.options.animation && me.options.animation.duration) {
                        helpers.each(newControllers, function(controller) {
                            controller.reset();
                        });
                    }

                    me.updateDatasets();

                    // Need to reset tooltip in case it is displayed with elements that are removed
                    // after update.
                    me.tooltip.initialize();

                    // Last active contains items that were previously in the tooltip.
                    // When we reset the tooltip, we need to clear it
                    me.lastActive = [];

                    // Do this before render so that any plugins that need final scale updates can use it
                    plugins.notify(me, 'afterUpdate');

                    if (me._bufferedRender) {
                        me._bufferedRequest = {
                            duration: config.duration,
                            easing: config.easing,
                            lazy: config.lazy
                        };
                    } else {
                        me.render(config);
                    }
                },

                /**
                 * Updates the chart layout unless a plugin returns `false` to the `beforeLayout`
                 * hook, in which case, plugins will not be called on `afterLayout`.
                 * @private
                 */
                updateLayout: function() {
                    var me = this;

                    if (plugins.notify(me, 'beforeLayout') === false) {
                        return;
                    }

                    layouts.update(this, this.width, this.height);

                    /**
                     * Provided for backward compatibility, use `afterLayout` instead.
                     * @method IPlugin#afterScaleUpdate
                     * @deprecated since version 2.5.0
                     * @todo remove at version 3
                     * @private
                     */
                    plugins.notify(me, 'afterScaleUpdate');
                    plugins.notify(me, 'afterLayout');
                },

                /**
                 * Updates all datasets unless a plugin returns `false` to the `beforeDatasetsUpdate`
                 * hook, in which case, plugins will not be called on `afterDatasetsUpdate`.
                 * @private
                 */
                updateDatasets: function() {
                    var me = this;

                    if (plugins.notify(me, 'beforeDatasetsUpdate') === false) {
                        return;
                    }

                    for (var i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
                        me.updateDataset(i);
                    }

                    plugins.notify(me, 'afterDatasetsUpdate');
                },

                /**
                 * Updates dataset at index unless a plugin returns `false` to the `beforeDatasetUpdate`
                 * hook, in which case, plugins will not be called on `afterDatasetUpdate`.
                 * @private
                 */
                updateDataset: function(index) {
                    var me = this;
                    var meta = me.getDatasetMeta(index);
                    var args = {
                        meta: meta,
                        index: index
                    };

                    if (plugins.notify(me, 'beforeDatasetUpdate', [args]) === false) {
                        return;
                    }

                    meta.controller.update();

                    plugins.notify(me, 'afterDatasetUpdate', [args]);
                },

                render: function(config) {
                    var me = this;

                    if (!config || typeof config !== 'object') {
                        // backwards compatibility
                        config = {
                            duration: config,
                            lazy: arguments[1]
                        };
                    }

                    var duration = config.duration;
                    var lazy = config.lazy;

                    if (plugins.notify(me, 'beforeRender') === false) {
                        return;
                    }

                    var animationOptions = me.options.animation;
                    var onComplete = function(animation) {
                        plugins.notify(me, 'afterRender');
                        helpers.callback(animationOptions && animationOptions.onComplete, [animation], me);
                    };

                    if (animationOptions && ((typeof duration !== 'undefined' && duration !== 0) || (typeof duration === 'undefined' && animationOptions.duration !== 0))) {
                        var animation = new Chart.Animation({
                            numSteps: (duration || animationOptions.duration) / 16.66, // 60 fps
                            easing: config.easing || animationOptions.easing,

                            render: function(chart, animationObject) {
                                var easingFunction = helpers.easing.effects[animationObject.easing];
                                var currentStep = animationObject.currentStep;
                                var stepDecimal = currentStep / animationObject.numSteps;

                                chart.draw(easingFunction(stepDecimal), stepDecimal, currentStep);
                            },

                            onAnimationProgress: animationOptions.onProgress,
                            onAnimationComplete: onComplete
                        });

                        Chart.animationService.addAnimation(me, animation, duration, lazy);
                    } else {
                        me.draw();

                        // See https://github.com/chartjs/Chart.js/issues/3781
                        onComplete(new Chart.Animation({numSteps: 0, chart: me}));
                    }

                    return me;
                },

                draw: function(easingValue) {
                    var me = this;

                    me.clear();

                    if (helpers.isNullOrUndef(easingValue)) {
                        easingValue = 1;
                    }

                    me.transition(easingValue);

                    if (plugins.notify(me, 'beforeDraw', [easingValue]) === false) {
                        return;
                    }

                    // Draw all the scales
                    helpers.each(me.boxes, function(box) {
                        box.draw(me.chartArea);
                    }, me);

                    if (me.scale) {
                        me.scale.draw();
                    }

                    me.drawDatasets(easingValue);
                    me._drawTooltip(easingValue);

                    plugins.notify(me, 'afterDraw', [easingValue]);
                },

                /**
                 * @private
                 */
                transition: function(easingValue) {
                    var me = this;

                    for (var i = 0, ilen = (me.data.datasets || []).length; i < ilen; ++i) {
                        if (me.isDatasetVisible(i)) {
                            me.getDatasetMeta(i).controller.transition(easingValue);
                        }
                    }

                    me.tooltip.transition(easingValue);
                },

                /**
                 * Draws all datasets unless a plugin returns `false` to the `beforeDatasetsDraw`
                 * hook, in which case, plugins will not be called on `afterDatasetsDraw`.
                 * @private
                 */
                drawDatasets: function(easingValue) {
                    var me = this;

                    if (plugins.notify(me, 'beforeDatasetsDraw', [easingValue]) === false) {
                        return;
                    }

                    // Draw datasets reversed to support proper line stacking
                    for (var i = (me.data.datasets || []).length - 1; i >= 0; --i) {
                        if (me.isDatasetVisible(i)) {
                            me.drawDataset(i, easingValue);
                        }
                    }

                    plugins.notify(me, 'afterDatasetsDraw', [easingValue]);
                },

                /**
                 * Draws dataset at index unless a plugin returns `false` to the `beforeDatasetDraw`
                 * hook, in which case, plugins will not be called on `afterDatasetDraw`.
                 * @private
                 */
                drawDataset: function(index, easingValue) {
                    var me = this;
                    var meta = me.getDatasetMeta(index);
                    var args = {
                        meta: meta,
                        index: index,
                        easingValue: easingValue
                    };

                    if (plugins.notify(me, 'beforeDatasetDraw', [args]) === false) {
                        return;
                    }

                    meta.controller.draw(easingValue);

                    plugins.notify(me, 'afterDatasetDraw', [args]);
                },

                /**
                 * Draws tooltip unless a plugin returns `false` to the `beforeTooltipDraw`
                 * hook, in which case, plugins will not be called on `afterTooltipDraw`.
                 * @private
                 */
                _drawTooltip: function(easingValue) {
                    var me = this;
                    var tooltip = me.tooltip;
                    var args = {
                        tooltip: tooltip,
                        easingValue: easingValue
                    };

                    if (plugins.notify(me, 'beforeTooltipDraw', [args]) === false) {
                        return;
                    }

                    tooltip.draw();

                    plugins.notify(me, 'afterTooltipDraw', [args]);
                },

                // Get the single element that was clicked on
                // @return : An object containing the dataset index and element index of the matching element. Also contains the rectangle that was draw
                getElementAtEvent: function(e) {
                    return Interaction.modes.single(this, e);
                },

                getElementsAtEvent: function(e) {
                    return Interaction.modes.label(this, e, {intersect: true});
                },

                getElementsAtXAxis: function(e) {
                    return Interaction.modes['x-axis'](this, e, {intersect: true});
                },

                getElementsAtEventForMode: function(e, mode, options) {
                    var method = Interaction.modes[mode];
                    if (typeof method === 'function') {
                        return method(this, e, options);
                    }

                    return [];
                },

                getDatasetAtEvent: function(e) {
                    return Interaction.modes.dataset(this, e, {intersect: true});
                },

                getDatasetMeta: function(datasetIndex) {
                    var me = this;
                    var dataset = me.data.datasets[datasetIndex];
                    if (!dataset._meta) {
                        dataset._meta = {};
                    }

                    var meta = dataset._meta[me.id];
                    if (!meta) {
                        meta = dataset._meta[me.id] = {
                            type: null,
                            data: [],
                            dataset: null,
                            controller: null,
                            hidden: null,			// See isDatasetVisible() comment
                            xAxisID: null,
                            yAxisID: null
                        };
                    }

                    return meta;
                },

                getVisibleDatasetCount: function() {
                    var count = 0;
                    for (var i = 0, ilen = this.data.datasets.length; i < ilen; ++i) {
                        if (this.isDatasetVisible(i)) {
                            count++;
                        }
                    }
                    return count;
                },

                isDatasetVisible: function(datasetIndex) {
                    var meta = this.getDatasetMeta(datasetIndex);

                    // meta.hidden is a per chart dataset hidden flag override with 3 states: if true or false,
                    // the dataset.hidden value is ignored, else if null, the dataset hidden state is returned.
                    return typeof meta.hidden === 'boolean' ? !meta.hidden : !this.data.datasets[datasetIndex].hidden;
                },

                generateLegend: function() {
                    return this.options.legendCallback(this);
                },

                /**
                 * @private
                 */
                destroyDatasetMeta: function(datasetIndex) {
                    var id = this.id;
                    var dataset = this.data.datasets[datasetIndex];
                    var meta = dataset._meta && dataset._meta[id];

                    if (meta) {
                        meta.controller.destroy();
                        delete dataset._meta[id];
                    }
                },

                destroy: function() {
                    var me = this;
                    var canvas = me.canvas;
                    var i, ilen;

                    me.stop();

                    // dataset controllers need to cleanup associated data
                    for (i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
                        me.destroyDatasetMeta(i);
                    }

                    if (canvas) {
                        me.unbindEvents();
                        helpers.canvas.clear(me);
                        platform.releaseContext(me.ctx);
                        me.canvas = null;
                        me.ctx = null;
                    }

                    plugins.notify(me, 'destroy');

                    delete Chart.instances[me.id];
                },

                toBase64Image: function() {
                    return this.canvas.toDataURL.apply(this.canvas, arguments);
                },

                initToolTip: function() {
                    var me = this;
                    me.tooltip = new Chart.Tooltip({
                        _chart: me,
                        _chartInstance: me, // deprecated, backward compatibility
                        _data: me.data,
                        _options: me.options.tooltips
                    }, me);
                },

                /**
                 * @private
                 */
                bindEvents: function() {
                    var me = this;
                    var listeners = me._listeners = {};
                    var listener = function() {
                        me.eventHandler.apply(me, arguments);
                    };

                    helpers.each(me.options.events, function(type) {
                        platform.addEventListener(me, type, listener);
                        listeners[type] = listener;
                    });

                    // Elements used to detect size change should not be injected for non responsive charts.
                    // See https://github.com/chartjs/Chart.js/issues/2210
                    if (me.options.responsive) {
                        listener = function() {
                            me.resize();
                        };

                        platform.addEventListener(me, 'resize', listener);
                        listeners.resize = listener;
                    }
                },

                /**
                 * @private
                 */
                unbindEvents: function() {
                    var me = this;
                    var listeners = me._listeners;
                    if (!listeners) {
                        return;
                    }

                    delete me._listeners;
                    helpers.each(listeners, function(listener, type) {
                        platform.removeEventListener(me, type, listener);
                    });
                },

                updateHoverStyle: function(elements, mode, enabled) {
                    var method = enabled ? 'setHoverStyle' : 'removeHoverStyle';
                    var element, i, ilen;

                    for (i = 0, ilen = elements.length; i < ilen; ++i) {
                        element = elements[i];
                        if (element) {
                            this.getDatasetMeta(element._datasetIndex).controller[method](element);
                        }
                    }
                },

                /**
                 * @private
                 */
                eventHandler: function(e) {
                    var me = this;
                    var tooltip = me.tooltip;

                    if (plugins.notify(me, 'beforeEvent', [e]) === false) {
                        return;
                    }

                    // Buffer any update calls so that renders do not occur
                    me._bufferedRender = true;
                    me._bufferedRequest = null;

                    var changed = me.handleEvent(e);
                    // for smooth tooltip animations issue #4989
                    // the tooltip should be the source of change
                    // Animation check workaround:
                    // tooltip._start will be null when tooltip isn't animating
                    if (tooltip) {
                        changed = tooltip._start
                            ? tooltip.handleEvent(e)
                            : changed | tooltip.handleEvent(e);
                    }

                    plugins.notify(me, 'afterEvent', [e]);

                    var bufferedRequest = me._bufferedRequest;
                    if (bufferedRequest) {
                        // If we have an update that was triggered, we need to do a normal render
                        me.render(bufferedRequest);
                    } else if (changed && !me.animating) {
                        // If entering, leaving, or changing elements, animate the change via pivot
                        me.stop();

                        // We only need to render at this point. Updating will cause scales to be
                        // recomputed generating flicker & using more memory than necessary.
                        me.render(me.options.hover.animationDuration, true);
                    }

                    me._bufferedRender = false;
                    me._bufferedRequest = null;

                    return me;
                },

                /**
                 * Handle an event
                 * @private
                 * @param {IEvent} event the event to handle
                 * @return {Boolean} true if the chart needs to re-render
                 */
                handleEvent: function(e) {
                    var me = this;
                    var options = me.options || {};
                    var hoverOptions = options.hover;
                    var changed = false;

                    me.lastActive = me.lastActive || [];

                    // Find Active Elements for hover and tooltips
                    if (e.type === 'mouseout') {
                        me.active = [];
                    } else {
                        me.active = me.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions);
                    }

                    // Invoke onHover hook
                    // Need to call with native event here to not break backwards compatibility
                    helpers.callback(options.onHover || options.hover.onHover, [e.native, me.active], me);

                    if (e.type === 'mouseup' || e.type === 'click') {
                        if (options.onClick) {
                            // Use e.native here for backwards compatibility
                            options.onClick.call(me, e.native, me.active);
                        }
                    }

                    // Remove styling for last active (even if it may still be active)
                    if (me.lastActive.length) {
                        me.updateHoverStyle(me.lastActive, hoverOptions.mode, false);
                    }

                    // Built in hover styling
                    if (me.active.length && hoverOptions.mode) {
                        me.updateHoverStyle(me.active, hoverOptions.mode, true);
                    }

                    changed = !helpers.arrayEquals(me.active, me.lastActive);

                    // Remember Last Actives
                    me.lastActive = me.active;

                    return changed;
                }
            });

            /**
             * Provided for backward compatibility, use Chart instead.
             * @class Chart.Controller
             * @deprecated since version 2.6.0
             * @todo remove at version 3
             * @private
             */
            Chart.Controller = Chart;
        };

    },{"25":25,"28":28,"30":30,"31":31,"45":45,"48":48}],24:[function(require,module,exports){
        'use strict';

        var helpers = require(45);

        module.exports = function(Chart) {

            var arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift'];

            /**
             * Hooks the array methods that add or remove values ('push', pop', 'shift', 'splice',
             * 'unshift') and notify the listener AFTER the array has been altered. Listeners are
             * called on the 'onData*' callbacks (e.g. onDataPush, etc.) with same arguments.
             */
            function listenArrayEvents(array, listener) {
                if (array._chartjs) {
                    array._chartjs.listeners.push(listener);
                    return;
                }

                Object.defineProperty(array, '_chartjs', {
                    configurable: true,
                    enumerable: false,
                    value: {
                        listeners: [listener]
                    }
                });

                arrayEvents.forEach(function(key) {
                    var method = 'onData' + key.charAt(0).toUpperCase() + key.slice(1);
                    var base = array[key];

                    Object.defineProperty(array, key, {
                        configurable: true,
                        enumerable: false,
                        value: function() {
                            var args = Array.prototype.slice.call(arguments);
                            var res = base.apply(this, args);

                            helpers.each(array._chartjs.listeners, function(object) {
                                if (typeof object[method] === 'function') {
                                    object[method].apply(object, args);
                                }
                            });

                            return res;
                        }
                    });
                });
            }

            /**
             * Removes the given array event listener and cleanup extra attached properties (such as
             * the _chartjs stub and overridden methods) if array doesn't have any more listeners.
             */
            function unlistenArrayEvents(array, listener) {
                var stub = array._chartjs;
                if (!stub) {
                    return;
                }

                var listeners = stub.listeners;
                var index = listeners.indexOf(listener);
                if (index !== -1) {
                    listeners.splice(index, 1);
                }

                if (listeners.length > 0) {
                    return;
                }

                arrayEvents.forEach(function(key) {
                    delete array[key];
                });

                delete array._chartjs;
            }

            // Base class for all dataset controllers (line, bar, etc)
            Chart.DatasetController = function(chart, datasetIndex) {
                this.initialize(chart, datasetIndex);
            };

            helpers.extend(Chart.DatasetController.prototype, {

                /**
                 * Element type used to generate a meta dataset (e.g. Chart.element.Line).
                 * @type {Chart.core.element}
                 */
                datasetElementType: null,

                /**
                 * Element type used to generate a meta data (e.g. Chart.element.Point).
                 * @type {Chart.core.element}
                 */
                dataElementType: null,

                initialize: function(chart, datasetIndex) {
                    var me = this;
                    me.chart = chart;
                    me.index = datasetIndex;
                    me.linkScales();
                    me.addElements();
                },

                updateIndex: function(datasetIndex) {
                    this.index = datasetIndex;
                },

                linkScales: function() {
                    var me = this;
                    var meta = me.getMeta();
                    var dataset = me.getDataset();

                    if (meta.xAxisID === null || !(meta.xAxisID in me.chart.scales)) {
                        meta.xAxisID = dataset.xAxisID || me.chart.options.scales.xAxes[0].id;
                    }
                    if (meta.yAxisID === null || !(meta.yAxisID in me.chart.scales)) {
                        meta.yAxisID = dataset.yAxisID || me.chart.options.scales.yAxes[0].id;
                    }
                },

                getDataset: function() {
                    return this.chart.data.datasets[this.index];
                },

                getMeta: function() {
                    return this.chart.getDatasetMeta(this.index);
                },

                getScaleForId: function(scaleID) {
                    return this.chart.scales[scaleID];
                },

                reset: function() {
                    this.update(true);
                },

                /**
                 * @private
                 */
                destroy: function() {
                    if (this._data) {
                        unlistenArrayEvents(this._data, this);
                    }
                },

                createMetaDataset: function() {
                    var me = this;
                    var type = me.datasetElementType;
                    return type && new type({
                        _chart: me.chart,
                        _datasetIndex: me.index
                    });
                },

                createMetaData: function(index) {
                    var me = this;
                    var type = me.dataElementType;
                    return type && new type({
                        _chart: me.chart,
                        _datasetIndex: me.index,
                        _index: index
                    });
                },

                addElements: function() {
                    var me = this;
                    var meta = me.getMeta();
                    var data = me.getDataset().data || [];
                    var metaData = meta.data;
                    var i, ilen;

                    for (i = 0, ilen = data.length; i < ilen; ++i) {
                        metaData[i] = metaData[i] || me.createMetaData(i);
                    }

                    meta.dataset = meta.dataset || me.createMetaDataset();
                },

                addElementAndReset: function(index) {
                    var element = this.createMetaData(index);
                    this.getMeta().data.splice(index, 0, element);
                    this.updateElement(element, index, true);
                },

                buildOrUpdateElements: function() {
                    var me = this;
                    var dataset = me.getDataset();
                    var data = dataset.data || (dataset.data = []);

                    // In order to correctly handle data addition/deletion animation (an thus simulate
                    // real-time charts), we need to monitor these data modifications and synchronize
                    // the internal meta data accordingly.
                    if (me._data !== data) {
                        if (me._data) {
                            // This case happens when the user replaced the data array instance.
                            unlistenArrayEvents(me._data, me);
                        }

                        listenArrayEvents(data, me);
                        me._data = data;
                    }

                    // Re-sync meta data in case the user replaced the data array or if we missed
                    // any updates and so make sure that we handle number of datapoints changing.
                    me.resyncElements();
                },

                update: helpers.noop,

                transition: function(easingValue) {
                    var meta = this.getMeta();
                    var elements = meta.data || [];
                    var ilen = elements.length;
                    var i = 0;

                    for (; i < ilen; ++i) {
                        elements[i].transition(easingValue);
                    }

                    if (meta.dataset) {
                        meta.dataset.transition(easingValue);
                    }
                },

                draw: function() {
                    var meta = this.getMeta();
                    var elements = meta.data || [];
                    var ilen = elements.length;
                    var i = 0;

                    if (meta.dataset) {
                        meta.dataset.draw();
                    }

                    for (; i < ilen; ++i) {
                        elements[i].draw();
                    }
                },

                removeHoverStyle: function(element, elementOpts) {
                    var dataset = this.chart.data.datasets[element._datasetIndex];
                    var index = element._index;
                    var custom = element.custom || {};
                    var valueOrDefault = helpers.valueAtIndexOrDefault;
                    var model = element._model;

                    model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : valueOrDefault(dataset.backgroundColor, index, elementOpts.backgroundColor);
                    model.borderColor = custom.borderColor ? custom.borderColor : valueOrDefault(dataset.borderColor, index, elementOpts.borderColor);
                    model.borderWidth = custom.borderWidth ? custom.borderWidth : valueOrDefault(dataset.borderWidth, index, elementOpts.borderWidth);
                },

                setHoverStyle: function(element) {
                    var dataset = this.chart.data.datasets[element._datasetIndex];
                    var index = element._index;
                    var custom = element.custom || {};
                    var valueOrDefault = helpers.valueAtIndexOrDefault;
                    var getHoverColor = helpers.getHoverColor;
                    var model = element._model;

                    model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : valueOrDefault(dataset.hoverBackgroundColor, index, getHoverColor(model.backgroundColor));
                    model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : valueOrDefault(dataset.hoverBorderColor, index, getHoverColor(model.borderColor));
                    model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : valueOrDefault(dataset.hoverBorderWidth, index, model.borderWidth);
                },

                /**
                 * @private
                 */
                resyncElements: function() {
                    var me = this;
                    var meta = me.getMeta();
                    var data = me.getDataset().data;
                    var numMeta = meta.data.length;
                    var numData = data.length;

                    if (numData < numMeta) {
                        meta.data.splice(numData, numMeta - numData);
                    } else if (numData > numMeta) {
                        me.insertElements(numMeta, numData - numMeta);
                    }
                },

                /**
                 * @private
                 */
                insertElements: function(start, count) {
                    for (var i = 0; i < count; ++i) {
                        this.addElementAndReset(start + i);
                    }
                },

                /**
                 * @private
                 */
                onDataPush: function() {
                    this.insertElements(this.getDataset().data.length - 1, arguments.length);
                },

                /**
                 * @private
                 */
                onDataPop: function() {
                    this.getMeta().data.pop();
                },

                /**
                 * @private
                 */
                onDataShift: function() {
                    this.getMeta().data.shift();
                },

                /**
                 * @private
                 */
                onDataSplice: function(start, count) {
                    this.getMeta().data.splice(start, count);
                    this.insertElements(start, arguments.length - 2);
                },

                /**
                 * @private
                 */
                onDataUnshift: function() {
                    this.insertElements(0, arguments.length);
                }
            });

            Chart.DatasetController.extend = helpers.inherits;
        };

    },{"45":45}],25:[function(require,module,exports){
        'use strict';

        var helpers = require(45);

        module.exports = {
            /**
             * @private
             */
            _set: function(scope, values) {
                return helpers.merge(this[scope] || (this[scope] = {}), values);
            }
        };

    },{"45":45}],26:[function(require,module,exports){
        'use strict';

        var color = require(2);
        var helpers = require(45);

        function interpolate(start, view, model, ease) {
            var keys = Object.keys(model);
            var i, ilen, key, actual, origin, target, type, c0, c1;

            for (i = 0, ilen = keys.length; i < ilen; ++i) {
                key = keys[i];

                target = model[key];

                // if a value is added to the model after pivot() has been called, the view
                // doesn't contain it, so let's initialize the view to the target value.
                if (!view.hasOwnProperty(key)) {
                    view[key] = target;
                }

                actual = view[key];

                if (actual === target || key[0] === '_') {
                    continue;
                }

                if (!start.hasOwnProperty(key)) {
                    start[key] = actual;
                }

                origin = start[key];

                type = typeof target;

                if (type === typeof origin) {
                    if (type === 'string') {
                        c0 = color(origin);
                        if (c0.valid) {
                            c1 = color(target);
                            if (c1.valid) {
                                view[key] = c1.mix(c0, ease).rgbString();
                                continue;
                            }
                        }
                    } else if (type === 'number' && isFinite(origin) && isFinite(target)) {
                        view[key] = origin + (target - origin) * ease;
                        continue;
                    }
                }

                view[key] = target;
            }
        }

        var Element = function(configuration) {
            helpers.extend(this, configuration);
            this.initialize.apply(this, arguments);
        };

        helpers.extend(Element.prototype, {

            initialize: function() {
                this.hidden = false;
            },

            pivot: function() {
                var me = this;
                if (!me._view) {
                    me._view = helpers.clone(me._model);
                }
                me._start = {};
                return me;
            },

            transition: function(ease) {
                var me = this;
                var model = me._model;
                var start = me._start;
                var view = me._view;

                // No animation -> No Transition
                if (!model || ease === 1) {
                    me._view = model;
                    me._start = null;
                    return me;
                }

                if (!view) {
                    view = me._view = {};
                }

                if (!start) {
                    start = me._start = {};
                }

                interpolate(start, view, model, ease);

                return me;
            },

            tooltipPosition: function() {
                return {
                    x: this._model.x,
                    y: this._model.y
                };
            },

            hasValue: function() {
                return helpers.isNumber(this._model.x) && helpers.isNumber(this._model.y);
            }
        });

        Element.extend = helpers.inherits;

        module.exports = Element;

    },{"2":2,"45":45}],27:[function(require,module,exports){
        /* global window: false */
        /* global document: false */
        'use strict';

        var color = require(2);
        var defaults = require(25);
        var helpers = require(45);

        module.exports = function(Chart) {

            // -- Basic js utility methods

            helpers.configMerge = function(/* objects ... */) {
                return helpers.merge(helpers.clone(arguments[0]), [].slice.call(arguments, 1), {
                    merger: function(key, target, source, options) {
                        var tval = target[key] || {};
                        var sval = source[key];

                        if (key === 'scales') {
                            // scale config merging is complex. Add our own function here for that
                            target[key] = helpers.scaleMerge(tval, sval);
                        } else if (key === 'scale') {
                            // used in polar area & radar charts since there is only one scale
                            target[key] = helpers.merge(tval, [Chart.scaleService.getScaleDefaults(sval.type), sval]);
                        } else {
                            helpers._merger(key, target, source, options);
                        }
                    }
                });
            };

            helpers.scaleMerge = function(/* objects ... */) {
                return helpers.merge(helpers.clone(arguments[0]), [].slice.call(arguments, 1), {
                    merger: function(key, target, source, options) {
                        if (key === 'xAxes' || key === 'yAxes') {
                            var slen = source[key].length;
                            var i, type, scale;

                            if (!target[key]) {
                                target[key] = [];
                            }

                            for (i = 0; i < slen; ++i) {
                                scale = source[key][i];
                                type = helpers.valueOrDefault(scale.type, key === 'xAxes' ? 'category' : 'linear');

                                if (i >= target[key].length) {
                                    target[key].push({});
                                }

                                if (!target[key][i].type || (scale.type && scale.type !== target[key][i].type)) {
                                    // new/untyped scale or type changed: let's apply the new defaults
                                    // then merge source scale to correctly overwrite the defaults.
                                    helpers.merge(target[key][i], [Chart.scaleService.getScaleDefaults(type), scale]);
                                } else {
                                    // scales type are the same
                                    helpers.merge(target[key][i], scale);
                                }
                            }
                        } else {
                            helpers._merger(key, target, source, options);
                        }
                    }
                });
            };

            helpers.where = function(collection, filterCallback) {
                if (helpers.isArray(collection) && Array.prototype.filter) {
                    return collection.filter(filterCallback);
                }
                var filtered = [];

                helpers.each(collection, function(item) {
                    if (filterCallback(item)) {
                        filtered.push(item);
                    }
                });

                return filtered;
            };
            helpers.findIndex = Array.prototype.findIndex ?
                function(array, callback, scope) {
                    return array.findIndex(callback, scope);
                } :
                function(array, callback, scope) {
                    scope = scope === undefined ? array : scope;
                    for (var i = 0, ilen = array.length; i < ilen; ++i) {
                        if (callback.call(scope, array[i], i, array)) {
                            return i;
                        }
                    }
                    return -1;
                };
            helpers.findNextWhere = function(arrayToSearch, filterCallback, startIndex) {
                // Default to start of the array
                if (helpers.isNullOrUndef(startIndex)) {
                    startIndex = -1;
                }
                for (var i = startIndex + 1; i < arrayToSearch.length; i++) {
                    var currentItem = arrayToSearch[i];
                    if (filterCallback(currentItem)) {
                        return currentItem;
                    }
                }
            };
            helpers.findPreviousWhere = function(arrayToSearch, filterCallback, startIndex) {
                // Default to end of the array
                if (helpers.isNullOrUndef(startIndex)) {
                    startIndex = arrayToSearch.length;
                }
                for (var i = startIndex - 1; i >= 0; i--) {
                    var currentItem = arrayToSearch[i];
                    if (filterCallback(currentItem)) {
                        return currentItem;
                    }
                }
            };

            // -- Math methods
            helpers.isNumber = function(n) {
                return !isNaN(parseFloat(n)) && isFinite(n);
            };
            helpers.almostEquals = function(x, y, epsilon) {
                return Math.abs(x - y) < epsilon;
            };
            helpers.almostWhole = function(x, epsilon) {
                var rounded = Math.round(x);
                return (((rounded - epsilon) < x) && ((rounded + epsilon) > x));
            };
            helpers.max = function(array) {
                return array.reduce(function(max, value) {
                    if (!isNaN(value)) {
                        return Math.max(max, value);
                    }
                    return max;
                }, Number.NEGATIVE_INFINITY);
            };
            helpers.min = function(array) {
                return array.reduce(function(min, value) {
                    if (!isNaN(value)) {
                        return Math.min(min, value);
                    }
                    return min;
                }, Number.POSITIVE_INFINITY);
            };
            helpers.sign = Math.sign ?
                function(x) {
                    return Math.sign(x);
                } :
                function(x) {
                    x = +x; // convert to a number
                    if (x === 0 || isNaN(x)) {
                        return x;
                    }
                    return x > 0 ? 1 : -1;
                };
            helpers.log10 = Math.log10 ?
                function(x) {
                    return Math.log10(x);
                } :
                function(x) {
                    var exponent = Math.log(x) * Math.LOG10E; // Math.LOG10E = 1 / Math.LN10.
                    // Check for whole powers of 10,
                    // which due to floating point rounding error should be corrected.
                    var powerOf10 = Math.round(exponent);
                    var isPowerOf10 = x === Math.pow(10, powerOf10);

                    return isPowerOf10 ? powerOf10 : exponent;
                };
            helpers.toRadians = function(degrees) {
                return degrees * (Math.PI / 180);
            };
            helpers.toDegrees = function(radians) {
                return radians * (180 / Math.PI);
            };
            // Gets the angle from vertical upright to the point about a centre.
            helpers.getAngleFromPoint = function(centrePoint, anglePoint) {
                var distanceFromXCenter = anglePoint.x - centrePoint.x;
                var distanceFromYCenter = anglePoint.y - centrePoint.y;
                var radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);

                var angle = Math.atan2(distanceFromYCenter, distanceFromXCenter);

                if (angle < (-0.5 * Math.PI)) {
                    angle += 2.0 * Math.PI; // make sure the returned angle is in the range of (-PI/2, 3PI/2]
                }

                return {
                    angle: angle,
                    distance: radialDistanceFromCenter
                };
            };
            helpers.distanceBetweenPoints = function(pt1, pt2) {
                return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2));
            };
            helpers.aliasPixel = function(pixelWidth) {
                return (pixelWidth % 2 === 0) ? 0 : 0.5;
            };
            helpers.splineCurve = function(firstPoint, middlePoint, afterPoint, t) {
                // Props to Rob Spencer at scaled innovation for his post on splining between points
                // http://scaledinnovation.com/analytics/splines/aboutSplines.html

                // This function must also respect "skipped" points

                var previous = firstPoint.skip ? middlePoint : firstPoint;
                var current = middlePoint;
                var next = afterPoint.skip ? middlePoint : afterPoint;

                var d01 = Math.sqrt(Math.pow(current.x - previous.x, 2) + Math.pow(current.y - previous.y, 2));
                var d12 = Math.sqrt(Math.pow(next.x - current.x, 2) + Math.pow(next.y - current.y, 2));

                var s01 = d01 / (d01 + d12);
                var s12 = d12 / (d01 + d12);

                // If all points are the same, s01 & s02 will be inf
                s01 = isNaN(s01) ? 0 : s01;
                s12 = isNaN(s12) ? 0 : s12;

                var fa = t * s01; // scaling factor for triangle Ta
                var fb = t * s12;

                return {
                    previous: {
                        x: current.x - fa * (next.x - previous.x),
                        y: current.y - fa * (next.y - previous.y)
                    },
                    next: {
                        x: current.x + fb * (next.x - previous.x),
                        y: current.y + fb * (next.y - previous.y)
                    }
                };
            };
            helpers.EPSILON = Number.EPSILON || 1e-14;
            helpers.splineCurveMonotone = function(points) {
                // This function calculates Bézier control points in a similar way than |splineCurve|,
                // but preserves monotonicity of the provided data and ensures no local extremums are added
                // between the dataset discrete points due to the interpolation.
                // See : https://en.wikipedia.org/wiki/Monotone_cubic_interpolation

                var pointsWithTangents = (points || []).map(function(point) {
                    return {
                        model: point._model,
                        deltaK: 0,
                        mK: 0
                    };
                });

                // Calculate slopes (deltaK) and initialize tangents (mK)
                var pointsLen = pointsWithTangents.length;
                var i, pointBefore, pointCurrent, pointAfter;
                for (i = 0; i < pointsLen; ++i) {
                    pointCurrent = pointsWithTangents[i];
                    if (pointCurrent.model.skip) {
                        continue;
                    }

                    pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
                    pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
                    if (pointAfter && !pointAfter.model.skip) {
                        var slopeDeltaX = (pointAfter.model.x - pointCurrent.model.x);

                        // In the case of two points that appear at the same x pixel, slopeDeltaX is 0
                        pointCurrent.deltaK = slopeDeltaX !== 0 ? (pointAfter.model.y - pointCurrent.model.y) / slopeDeltaX : 0;
                    }

                    if (!pointBefore || pointBefore.model.skip) {
                        pointCurrent.mK = pointCurrent.deltaK;
                    } else if (!pointAfter || pointAfter.model.skip) {
                        pointCurrent.mK = pointBefore.deltaK;
                    } else if (this.sign(pointBefore.deltaK) !== this.sign(pointCurrent.deltaK)) {
                        pointCurrent.mK = 0;
                    } else {
                        pointCurrent.mK = (pointBefore.deltaK + pointCurrent.deltaK) / 2;
                    }
                }

                // Adjust tangents to ensure monotonic properties
                var alphaK, betaK, tauK, squaredMagnitude;
                for (i = 0; i < pointsLen - 1; ++i) {
                    pointCurrent = pointsWithTangents[i];
                    pointAfter = pointsWithTangents[i + 1];
                    if (pointCurrent.model.skip || pointAfter.model.skip) {
                        continue;
                    }

                    if (helpers.almostEquals(pointCurrent.deltaK, 0, this.EPSILON)) {
                        pointCurrent.mK = pointAfter.mK = 0;
                        continue;
                    }

                    alphaK = pointCurrent.mK / pointCurrent.deltaK;
                    betaK = pointAfter.mK / pointCurrent.deltaK;
                    squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2);
                    if (squaredMagnitude <= 9) {
                        continue;
                    }

                    tauK = 3 / Math.sqrt(squaredMagnitude);
                    pointCurrent.mK = alphaK * tauK * pointCurrent.deltaK;
                    pointAfter.mK = betaK * tauK * pointCurrent.deltaK;
                }

                // Compute control points
                var deltaX;
                for (i = 0; i < pointsLen; ++i) {
                    pointCurrent = pointsWithTangents[i];
                    if (pointCurrent.model.skip) {
                        continue;
                    }

                    pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
                    pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
                    if (pointBefore && !pointBefore.model.skip) {
                        deltaX = (pointCurrent.model.x - pointBefore.model.x) / 3;
                        pointCurrent.model.controlPointPreviousX = pointCurrent.model.x - deltaX;
                        pointCurrent.model.controlPointPreviousY = pointCurrent.model.y - deltaX * pointCurrent.mK;
                    }
                    if (pointAfter && !pointAfter.model.skip) {
                        deltaX = (pointAfter.model.x - pointCurrent.model.x) / 3;
                        pointCurrent.model.controlPointNextX = pointCurrent.model.x + deltaX;
                        pointCurrent.model.controlPointNextY = pointCurrent.model.y + deltaX * pointCurrent.mK;
                    }
                }
            };
            helpers.nextItem = function(collection, index, loop) {
                if (loop) {
                    return index >= collection.length - 1 ? collection[0] : collection[index + 1];
                }
                return index >= collection.length - 1 ? collection[collection.length - 1] : collection[index + 1];
            };
            helpers.previousItem = function(collection, index, loop) {
                if (loop) {
                    return index <= 0 ? collection[collection.length - 1] : collection[index - 1];
                }
                return index <= 0 ? collection[0] : collection[index - 1];
            };
            // Implementation of the nice number algorithm used in determining where axis labels will go
            helpers.niceNum = function(range, round) {
                var exponent = Math.floor(helpers.log10(range));
                var fraction = range / Math.pow(10, exponent);
                var niceFraction;

                if (round) {
                    if (fraction < 1.5) {
                        niceFraction = 1;
                    } else if (fraction < 3) {
                        niceFraction = 2;
                    } else if (fraction < 7) {
                        niceFraction = 5;
                    } else {
                        niceFraction = 10;
                    }
                } else if (fraction <= 1.0) {
                    niceFraction = 1;
                } else if (fraction <= 2) {
                    niceFraction = 2;
                } else if (fraction <= 5) {
                    niceFraction = 5;
                } else {
                    niceFraction = 10;
                }

                return niceFraction * Math.pow(10, exponent);
            };
            // Request animation polyfill - http://www.paulirish.com/2011/requestanimationframe-for-smart-animating/
            helpers.requestAnimFrame = (function() {
                if (typeof window === 'undefined') {
                    return function(callback) {
                        callback();
                    };
                }
                return window.requestAnimationFrame ||
                    window.webkitRequestAnimationFrame ||
                    window.mozRequestAnimationFrame ||
                    window.oRequestAnimationFrame ||
                    window.msRequestAnimationFrame ||
                    function(callback) {
                        return window.setTimeout(callback, 1000 / 60);
                    };
            }());
            // -- DOM methods
            helpers.getRelativePosition = function(evt, chart) {
                var mouseX, mouseY;
                var e = evt.originalEvent || evt;
                var canvas = evt.currentTarget || evt.srcElement;
                var boundingRect = canvas.getBoundingClientRect();

                var touches = e.touches;
                if (touches && touches.length > 0) {
                    mouseX = touches[0].clientX;
                    mouseY = touches[0].clientY;

                } else {
                    mouseX = e.clientX;
                    mouseY = e.clientY;
                }

                // Scale mouse coordinates into canvas coordinates
                // by following the pattern laid out by 'jerryj' in the comments of
                // http://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/
                var paddingLeft = parseFloat(helpers.getStyle(canvas, 'padding-left'));
                var paddingTop = parseFloat(helpers.getStyle(canvas, 'padding-top'));
                var paddingRight = parseFloat(helpers.getStyle(canvas, 'padding-right'));
                var paddingBottom = parseFloat(helpers.getStyle(canvas, 'padding-bottom'));
                var width = boundingRect.right - boundingRect.left - paddingLeft - paddingRight;
                var height = boundingRect.bottom - boundingRect.top - paddingTop - paddingBottom;

                // We divide by the current device pixel ratio, because the canvas is scaled up by that amount in each direction. However
                // the backend model is in unscaled coordinates. Since we are going to deal with our model coordinates, we go back here
                mouseX = Math.round((mouseX - boundingRect.left - paddingLeft) / (width) * canvas.width / chart.currentDevicePixelRatio);
                mouseY = Math.round((mouseY - boundingRect.top - paddingTop) / (height) * canvas.height / chart.currentDevicePixelRatio);

                return {
                    x: mouseX,
                    y: mouseY
                };

            };

            // Private helper function to convert max-width/max-height values that may be percentages into a number
            function parseMaxStyle(styleValue, node, parentProperty) {
                var valueInPixels;
                if (typeof styleValue === 'string') {
                    valueInPixels = parseInt(styleValue, 10);

                    if (styleValue.indexOf('%') !== -1) {
                        // percentage * size in dimension
                        valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty];
                    }
                } else {
                    valueInPixels = styleValue;
                }

                return valueInPixels;
            }

            /**
             * Returns if the given value contains an effective constraint.
             * @private
             */
            function isConstrainedValue(value) {
                return value !== undefined && value !== null && value !== 'none';
            }

            // Private helper to get a constraint dimension
            // @param domNode : the node to check the constraint on
            // @param maxStyle : the style that defines the maximum for the direction we are using (maxWidth / maxHeight)
            // @param percentageProperty : property of parent to use when calculating width as a percentage
            // @see http://www.nathanaeljones.com/blog/2013/reading-max-width-cross-browser
            function getConstraintDimension(domNode, maxStyle, percentageProperty) {
                var view = document.defaultView;
                var parentNode = domNode.parentNode;
                var constrainedNode = view.getComputedStyle(domNode)[maxStyle];
                var constrainedContainer = view.getComputedStyle(parentNode)[maxStyle];
                var hasCNode = isConstrainedValue(constrainedNode);
                var hasCContainer = isConstrainedValue(constrainedContainer);
                var infinity = Number.POSITIVE_INFINITY;

                if (hasCNode || hasCContainer) {
                    return Math.min(
                        hasCNode ? parseMaxStyle(constrainedNode, domNode, percentageProperty) : infinity,
                        hasCContainer ? parseMaxStyle(constrainedContainer, parentNode, percentageProperty) : infinity);
                }

                return 'none';
            }
            // returns Number or undefined if no constraint
            helpers.getConstraintWidth = function(domNode) {
                return getConstraintDimension(domNode, 'max-width', 'clientWidth');
            };
            // returns Number or undefined if no constraint
            helpers.getConstraintHeight = function(domNode) {
                return getConstraintDimension(domNode, 'max-height', 'clientHeight');
            };
            helpers.getMaximumWidth = function(domNode) {
                var container = domNode.parentNode;
                if (!container) {
                    return domNode.clientWidth;
                }

                var paddingLeft = parseInt(helpers.getStyle(container, 'padding-left'), 10);
                var paddingRight = parseInt(helpers.getStyle(container, 'padding-right'), 10);
                var w = container.clientWidth - paddingLeft - paddingRight;
                var cw = helpers.getConstraintWidth(domNode);
                return isNaN(cw) ? w : Math.min(w, cw);
            };
            helpers.getMaximumHeight = function(domNode) {
                var container = domNode.parentNode;
                if (!container) {
                    return domNode.clientHeight;
                }

                var paddingTop = parseInt(helpers.getStyle(container, 'padding-top'), 10);
                var paddingBottom = parseInt(helpers.getStyle(container, 'padding-bottom'), 10);
                var h = container.clientHeight - paddingTop - paddingBottom;
                var ch = helpers.getConstraintHeight(domNode);
                return isNaN(ch) ? h : Math.min(h, ch);
            };
            helpers.getStyle = function(el, property) {
                return el.currentStyle ?
                    el.currentStyle[property] :
                    document.defaultView.getComputedStyle(el, null).getPropertyValue(property);
            };
            helpers.retinaScale = function(chart, forceRatio) {
                var pixelRatio = chart.currentDevicePixelRatio = forceRatio || window.devicePixelRatio || 1;
                if (pixelRatio === 1) {
                    return;
                }

                var canvas = chart.canvas;
                var height = chart.height;
                var width = chart.width;

                canvas.height = height * pixelRatio;
                canvas.width = width * pixelRatio;
                chart.ctx.scale(pixelRatio, pixelRatio);

                // If no style has been set on the canvas, the render size is used as display size,
                // making the chart visually bigger, so let's enforce it to the "correct" values.
                // See https://github.com/chartjs/Chart.js/issues/3575
                if (!canvas.style.height && !canvas.style.width) {
                    canvas.style.height = height + 'px';
                    canvas.style.width = width + 'px';
                }
            };
            // -- Canvas methods
            helpers.fontString = function(pixelSize, fontStyle, fontFamily) {
                return fontStyle + ' ' + pixelSize + 'px ' + fontFamily;
            };
            helpers.longestText = function(ctx, font, arrayOfThings, cache) {
                cache = cache || {};
                var data = cache.data = cache.data || {};
                var gc = cache.garbageCollect = cache.garbageCollect || [];

                if (cache.font !== font) {
                    data = cache.data = {};
                    gc = cache.garbageCollect = [];
                    cache.font = font;
                }

                ctx.font = font;
                var longest = 0;
                helpers.each(arrayOfThings, function(thing) {
                    // Undefined strings and arrays should not be measured
                    if (thing !== undefined && thing !== null && helpers.isArray(thing) !== true) {
                        longest = helpers.measureText(ctx, data, gc, longest, thing);
                    } else if (helpers.isArray(thing)) {
                        // if it is an array lets measure each element
                        // to do maybe simplify this function a bit so we can do this more recursively?
                        helpers.each(thing, function(nestedThing) {
                            // Undefined strings and arrays should not be measured
                            if (nestedThing !== undefined && nestedThing !== null && !helpers.isArray(nestedThing)) {
                                longest = helpers.measureText(ctx, data, gc, longest, nestedThing);
                            }
                        });
                    }
                });

                var gcLen = gc.length / 2;
                if (gcLen > arrayOfThings.length) {
                    for (var i = 0; i < gcLen; i++) {
                        delete data[gc[i]];
                    }
                    gc.splice(0, gcLen);
                }
                return longest;
            };
            helpers.measureText = function(ctx, data, gc, longest, string) {
                var textWidth = data[string];
                if (!textWidth) {
                    textWidth = data[string] = ctx.measureText(string).width;
                    gc.push(string);
                }
                if (textWidth > longest) {
                    longest = textWidth;
                }
                return longest;
            };
            helpers.numberOfLabelLines = function(arrayOfThings) {
                var numberOfLines = 1;
                helpers.each(arrayOfThings, function(thing) {
                    if (helpers.isArray(thing)) {
                        if (thing.length > numberOfLines) {
                            numberOfLines = thing.length;
                        }
                    }
                });
                return numberOfLines;
            };

            helpers.color = !color ?
                function(value) {
                    console.error('Color.js not found!');
                    return value;
                } :
                function(value) {
                    /* global CanvasGradient */
                    if (value instanceof CanvasGradient) {
                        value = defaults.global.defaultColor;
                    }

                    return color(value);
                };

            helpers.getHoverColor = function(colorValue) {
                /* global CanvasPattern */
                return (colorValue instanceof CanvasPattern) ?
                    colorValue :
                    helpers.color(colorValue).saturate(0.5).darken(0.1).rgbString();
            };
        };

    },{"2":2,"25":25,"45":45}],28:[function(require,module,exports){
        'use strict';

        var helpers = require(45);

        /**
         * Helper function to get relative position for an event
         * @param {Event|IEvent} event - The event to get the position for
         * @param {Chart} chart - The chart
         * @returns {Point} the event position
         */
        function getRelativePosition(e, chart) {
            if (e.native) {
                return {
                    x: e.x,
                    y: e.y
                };
            }

            return helpers.getRelativePosition(e, chart);
        }

        /**
         * Helper function to traverse all of the visible elements in the chart
         * @param chart {chart} the chart
         * @param handler {Function} the callback to execute for each visible item
         */
        function parseVisibleItems(chart, handler) {
            var datasets = chart.data.datasets;
            var meta, i, j, ilen, jlen;

            for (i = 0, ilen = datasets.length; i < ilen; ++i) {
                if (!chart.isDatasetVisible(i)) {
                    continue;
                }

                meta = chart.getDatasetMeta(i);
                for (j = 0, jlen = meta.data.length; j < jlen; ++j) {
                    var element = meta.data[j];
                    if (!element._view.skip) {
                        handler(element);
                    }
                }
            }
        }

        /**
         * Helper function to get the items that intersect the event position
         * @param items {ChartElement[]} elements to filter
         * @param position {Point} the point to be nearest to
         * @return {ChartElement[]} the nearest items
         */
        function getIntersectItems(chart, position) {
            var elements = [];

            parseVisibleItems(chart, function(element) {
                if (element.inRange(position.x, position.y)) {
                    elements.push(element);
                }
            });

            return elements;
        }

        /**
         * Helper function to get the items nearest to the event position considering all visible items in teh chart
         * @param chart {Chart} the chart to look at elements from
         * @param position {Point} the point to be nearest to
         * @param intersect {Boolean} if true, only consider items that intersect the position
         * @param distanceMetric {Function} function to provide the distance between points
         * @return {ChartElement[]} the nearest items
         */
        function getNearestItems(chart, position, intersect, distanceMetric) {
            var minDistance = Number.POSITIVE_INFINITY;
            var nearestItems = [];

            parseVisibleItems(chart, function(element) {
                if (intersect && !element.inRange(position.x, position.y)) {
                    return;
                }

                var center = element.getCenterPoint();
                var distance = distanceMetric(position, center);

                if (distance < minDistance) {
                    nearestItems = [element];
                    minDistance = distance;
                } else if (distance === minDistance) {
                    // Can have multiple items at the same distance in which case we sort by size
                    nearestItems.push(element);
                }
            });

            return nearestItems;
        }

        /**
         * Get a distance metric function for two points based on the
         * axis mode setting
         * @param {String} axis the axis mode. x|y|xy
         */
        function getDistanceMetricForAxis(axis) {
            var useX = axis.indexOf('x') !== -1;
            var useY = axis.indexOf('y') !== -1;

            return function(pt1, pt2) {
                var deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0;
                var deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0;
                return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2));
            };
        }

        function indexMode(chart, e, options) {
            var position = getRelativePosition(e, chart);
            // Default axis for index mode is 'x' to match old behaviour
            options.axis = options.axis || 'x';
            var distanceMetric = getDistanceMetricForAxis(options.axis);
            var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric);
            var elements = [];

            if (!items.length) {
                return [];
            }

            chart.data.datasets.forEach(function(dataset, datasetIndex) {
                if (chart.isDatasetVisible(datasetIndex)) {
                    var meta = chart.getDatasetMeta(datasetIndex);
                    var element = meta.data[items[0]._index];

                    // don't count items that are skipped (null data)
                    if (element && !element._view.skip) {
                        elements.push(element);
                    }
                }
            });

            return elements;
        }

        /**
         * @interface IInteractionOptions
         */
        /**
         * If true, only consider items that intersect the point
         * @name IInterfaceOptions#boolean
         * @type Boolean
         */

        /**
         * Contains interaction related functions
         * @namespace Chart.Interaction
         */
        module.exports = {
            // Helper function for different modes
            modes: {
                single: function(chart, e) {
                    var position = getRelativePosition(e, chart);
                    var elements = [];

                    parseVisibleItems(chart, function(element) {
                        if (element.inRange(position.x, position.y)) {
                            elements.push(element);
                            return elements;
                        }
                    });

                    return elements.slice(0, 1);
                },

                /**
                 * @function Chart.Interaction.modes.label
                 * @deprecated since version 2.4.0
                 * @todo remove at version 3
                 * @private
                 */
                label: indexMode,

                /**
                 * Returns items at the same index. If the options.intersect parameter is true, we only return items if we intersect something
                 * If the options.intersect mode is false, we find the nearest item and return the items at the same index as that item
                 * @function Chart.Interaction.modes.index
                 * @since v2.4.0
                 * @param chart {chart} the chart we are returning items from
                 * @param e {Event} the event we are find things at
                 * @param options {IInteractionOptions} options to use during interaction
                 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
                 */
                index: indexMode,

                /**
                 * Returns items in the same dataset. If the options.intersect parameter is true, we only return items if we intersect something
                 * If the options.intersect is false, we find the nearest item and return the items in that dataset
                 * @function Chart.Interaction.modes.dataset
                 * @param chart {chart} the chart we are returning items from
                 * @param e {Event} the event we are find things at
                 * @param options {IInteractionOptions} options to use during interaction
                 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
                 */
                dataset: function(chart, e, options) {
                    var position = getRelativePosition(e, chart);
                    options.axis = options.axis || 'xy';
                    var distanceMetric = getDistanceMetricForAxis(options.axis);
                    var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric);

                    if (items.length > 0) {
                        items = chart.getDatasetMeta(items[0]._datasetIndex).data;
                    }

                    return items;
                },

                /**
                 * @function Chart.Interaction.modes.x-axis
                 * @deprecated since version 2.4.0. Use index mode and intersect == true
                 * @todo remove at version 3
                 * @private
                 */
                'x-axis': function(chart, e) {
                    return indexMode(chart, e, {intersect: false});
                },

                /**
                 * Point mode returns all elements that hit test based on the event position
                 * of the event
                 * @function Chart.Interaction.modes.intersect
                 * @param chart {chart} the chart we are returning items from
                 * @param e {Event} the event we are find things at
                 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
                 */
                point: function(chart, e) {
                    var position = getRelativePosition(e, chart);
                    return getIntersectItems(chart, position);
                },

                /**
                 * nearest mode returns the element closest to the point
                 * @function Chart.Interaction.modes.intersect
                 * @param chart {chart} the chart we are returning items from
                 * @param e {Event} the event we are find things at
                 * @param options {IInteractionOptions} options to use
                 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
                 */
                nearest: function(chart, e, options) {
                    var position = getRelativePosition(e, chart);
                    options.axis = options.axis || 'xy';
                    var distanceMetric = getDistanceMetricForAxis(options.axis);
                    var nearestItems = getNearestItems(chart, position, options.intersect, distanceMetric);

                    // We have multiple items at the same distance from the event. Now sort by smallest
                    if (nearestItems.length > 1) {
                        nearestItems.sort(function(a, b) {
                            var sizeA = a.getArea();
                            var sizeB = b.getArea();
                            var ret = sizeA - sizeB;

                            if (ret === 0) {
                                // if equal sort by dataset index
                                ret = a._datasetIndex - b._datasetIndex;
                            }

                            return ret;
                        });
                    }

                    // Return only 1 item
                    return nearestItems.slice(0, 1);
                },

                /**
                 * x mode returns the elements that hit-test at the current x coordinate
                 * @function Chart.Interaction.modes.x
                 * @param chart {chart} the chart we are returning items from
                 * @param e {Event} the event we are find things at
                 * @param options {IInteractionOptions} options to use
                 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
                 */
                x: function(chart, e, options) {
                    var position = getRelativePosition(e, chart);
                    var items = [];
                    var intersectsItem = false;

                    parseVisibleItems(chart, function(element) {
                        if (element.inXRange(position.x)) {
                            items.push(element);
                        }

                        if (element.inRange(position.x, position.y)) {
                            intersectsItem = true;
                        }
                    });

                    // If we want to trigger on an intersect and we don't have any items
                    // that intersect the position, return nothing
                    if (options.intersect && !intersectsItem) {
                        items = [];
                    }
                    return items;
                },

                /**
                 * y mode returns the elements that hit-test at the current y coordinate
                 * @function Chart.Interaction.modes.y
                 * @param chart {chart} the chart we are returning items from
                 * @param e {Event} the event we are find things at
                 * @param options {IInteractionOptions} options to use
                 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
                 */
                y: function(chart, e, options) {
                    var position = getRelativePosition(e, chart);
                    var items = [];
                    var intersectsItem = false;

                    parseVisibleItems(chart, function(element) {
                        if (element.inYRange(position.y)) {
                            items.push(element);
                        }

                        if (element.inRange(position.x, position.y)) {
                            intersectsItem = true;
                        }
                    });

                    // If we want to trigger on an intersect and we don't have any items
                    // that intersect the position, return nothing
                    if (options.intersect && !intersectsItem) {
                        items = [];
                    }
                    return items;
                }
            }
        };

    },{"45":45}],29:[function(require,module,exports){
        'use strict';

        var defaults = require(25);

        defaults._set('global', {
            responsive: true,
            responsiveAnimationDuration: 0,
            maintainAspectRatio: true,
            events: ['mousemove', 'mouseout', 'click', 'touchstart', 'touchmove'],
            hover: {
                onHover: null,
                mode: 'nearest',
                intersect: true,
                animationDuration: 400
            },
            onClick: null,
            defaultColor: 'rgba(0,0,0,0.1)',
            defaultFontColor: '#666',
            defaultFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",
            defaultFontSize: 12,
            defaultFontStyle: 'normal',
            showLines: true,

            // Element defaults defined in element extensions
            elements: {},

            // Layout options such as padding
            layout: {
                padding: {
                    top: 0,
                    right: 0,
                    bottom: 0,
                    left: 0
                }
            }
        });

        module.exports = function() {

            // Occupy the global variable of Chart, and create a simple base class
            var Chart = function(item, config) {
                this.construct(item, config);
                return this;
            };

            Chart.Chart = Chart;

            return Chart;
        };

    },{"25":25}],30:[function(require,module,exports){
        'use strict';

        var helpers = require(45);

        function filterByPosition(array, position) {
            return helpers.where(array, function(v) {
                return v.position === position;
            });
        }

        function sortByWeight(array, reverse) {
            array.forEach(function(v, i) {
                v._tmpIndex_ = i;
                return v;
            });
            array.sort(function(a, b) {
                var v0 = reverse ? b : a;
                var v1 = reverse ? a : b;
                return v0.weight === v1.weight ?
                    v0._tmpIndex_ - v1._tmpIndex_ :
                    v0.weight - v1.weight;
            });
            array.forEach(function(v) {
                delete v._tmpIndex_;
            });
        }

        /**
         * @interface ILayoutItem
         * @prop {String} position - The position of the item in the chart layout. Possible values are
         * 'left', 'top', 'right', 'bottom', and 'chartArea'
         * @prop {Number} weight - The weight used to sort the item. Higher weights are further away from the chart area
         * @prop {Boolean} fullWidth - if true, and the item is horizontal, then push vertical boxes down
         * @prop {Function} isHorizontal - returns true if the layout item is horizontal (ie. top or bottom)
         * @prop {Function} update - Takes two parameters: width and height. Returns size of item
         * @prop {Function} getPadding -  Returns an object with padding on the edges
         * @prop {Number} width - Width of item. Must be valid after update()
         * @prop {Number} height - Height of item. Must be valid after update()
         * @prop {Number} left - Left edge of the item. Set by layout system and cannot be used in update
         * @prop {Number} top - Top edge of the item. Set by layout system and cannot be used in update
         * @prop {Number} right - Right edge of the item. Set by layout system and cannot be used in update
         * @prop {Number} bottom - Bottom edge of the item. Set by layout system and cannot be used in update
         */

// The layout service is very self explanatory.  It's responsible for the layout within a chart.
// Scales, Legends and Plugins all rely on the layout service and can easily register to be placed anywhere they need
// It is this service's responsibility of carrying out that layout.
        module.exports = {
            defaults: {},

            /**
             * Register a box to a chart.
             * A box is simply a reference to an object that requires layout. eg. Scales, Legend, Title.
             * @param {Chart} chart - the chart to use
             * @param {ILayoutItem} item - the item to add to be layed out
             */
            addBox: function(chart, item) {
                if (!chart.boxes) {
                    chart.boxes = [];
                }

                // initialize item with default values
                item.fullWidth = item.fullWidth || false;
                item.position = item.position || 'top';
                item.weight = item.weight || 0;

                chart.boxes.push(item);
            },

            /**
             * Remove a layoutItem from a chart
             * @param {Chart} chart - the chart to remove the box from
             * @param {Object} layoutItem - the item to remove from the layout
             */
            removeBox: function(chart, layoutItem) {
                var index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1;
                if (index !== -1) {
                    chart.boxes.splice(index, 1);
                }
            },

            /**
             * Sets (or updates) options on the given `item`.
             * @param {Chart} chart - the chart in which the item lives (or will be added to)
             * @param {Object} item - the item to configure with the given options
             * @param {Object} options - the new item options.
             */
            configure: function(chart, item, options) {
                var props = ['fullWidth', 'position', 'weight'];
                var ilen = props.length;
                var i = 0;
                var prop;

                for (; i < ilen; ++i) {
                    prop = props[i];
                    if (options.hasOwnProperty(prop)) {
                        item[prop] = options[prop];
                    }
                }
            },

            /**
             * Fits boxes of the given chart into the given size by having each box measure itself
             * then running a fitting algorithm
             * @param {Chart} chart - the chart
             * @param {Number} width - the width to fit into
             * @param {Number} height - the height to fit into
             */
            update: function(chart, width, height) {
                if (!chart) {
                    return;
                }

                var layoutOptions = chart.options.layout || {};
                var padding = helpers.options.toPadding(layoutOptions.padding);
                var leftPadding = padding.left;
                var rightPadding = padding.right;
                var topPadding = padding.top;
                var bottomPadding = padding.bottom;

                var leftBoxes = filterByPosition(chart.boxes, 'left');
                var rightBoxes = filterByPosition(chart.boxes, 'right');
                var topBoxes = filterByPosition(chart.boxes, 'top');
                var bottomBoxes = filterByPosition(chart.boxes, 'bottom');
                var chartAreaBoxes = filterByPosition(chart.boxes, 'chartArea');

                // Sort boxes by weight. A higher weight is further away from the chart area
                sortByWeight(leftBoxes, true);
                sortByWeight(rightBoxes, false);
                sortByWeight(topBoxes, true);
                sortByWeight(bottomBoxes, false);

                // Essentially we now have any number of boxes on each of the 4 sides.
                // Our canvas looks like the following.
                // The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and
                // B1 is the bottom axis
                // There are also 4 quadrant-like locations (left to right instead of clockwise) reserved for chart overlays
                // These locations are single-box locations only, when trying to register a chartArea location that is already taken,
                // an error will be thrown.
                //
                // |----------------------------------------------------|
                // |                  T1 (Full Width)                   |
                // |----------------------------------------------------|
                // |    |    |                 T2                  |    |
                // |    |----|-------------------------------------|----|
                // |    |    | C1 |                           | C2 |    |
                // |    |    |----|                           |----|    |
                // |    |    |                                     |    |
                // | L1 | L2 |           ChartArea (C0)            | R1 |
                // |    |    |                                     |    |
                // |    |    |----|                           |----|    |
                // |    |    | C3 |                           | C4 |    |
                // |    |----|-------------------------------------|----|
                // |    |    |                 B1                  |    |
                // |----------------------------------------------------|
                // |                  B2 (Full Width)                   |
                // |----------------------------------------------------|
                //
                // What we do to find the best sizing, we do the following
                // 1. Determine the minimum size of the chart area.
                // 2. Split the remaining width equally between each vertical axis
                // 3. Split the remaining height equally between each horizontal axis
                // 4. Give each layout the maximum size it can be. The layout will return it's minimum size
                // 5. Adjust the sizes of each axis based on it's minimum reported size.
                // 6. Refit each axis
                // 7. Position each axis in the final location
                // 8. Tell the chart the final location of the chart area
                // 9. Tell any axes that overlay the chart area the positions of the chart area

                // Step 1
                var chartWidth = width - leftPadding - rightPadding;
                var chartHeight = height - topPadding - bottomPadding;
                var chartAreaWidth = chartWidth / 2; // min 50%
                var chartAreaHeight = chartHeight / 2; // min 50%

                // Step 2
                var verticalBoxWidth = (width - chartAreaWidth) / (leftBoxes.length + rightBoxes.length);

                // Step 3
                var horizontalBoxHeight = (height - chartAreaHeight) / (topBoxes.length + bottomBoxes.length);

                // Step 4
                var maxChartAreaWidth = chartWidth;
                var maxChartAreaHeight = chartHeight;
                var minBoxSizes = [];

                function getMinimumBoxSize(box) {
                    var minSize;
                    var isHorizontal = box.isHorizontal();

                    if (isHorizontal) {
                        minSize = box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, horizontalBoxHeight);
                        maxChartAreaHeight -= minSize.height;
                    } else {
                        minSize = box.update(verticalBoxWidth, maxChartAreaHeight);
                        maxChartAreaWidth -= minSize.width;
                    }

                    minBoxSizes.push({
                        horizontal: isHorizontal,
                        minSize: minSize,
                        box: box,
                    });
                }

                helpers.each(leftBoxes.concat(rightBoxes, topBoxes, bottomBoxes), getMinimumBoxSize);

                // If a horizontal box has padding, we move the left boxes over to avoid ugly charts (see issue #2478)
                var maxHorizontalLeftPadding = 0;
                var maxHorizontalRightPadding = 0;
                var maxVerticalTopPadding = 0;
                var maxVerticalBottomPadding = 0;

                helpers.each(topBoxes.concat(bottomBoxes), function(horizontalBox) {
                    if (horizontalBox.getPadding) {
                        var boxPadding = horizontalBox.getPadding();
                        maxHorizontalLeftPadding = Math.max(maxHorizontalLeftPadding, boxPadding.left);
                        maxHorizontalRightPadding = Math.max(maxHorizontalRightPadding, boxPadding.right);
                    }
                });

                helpers.each(leftBoxes.concat(rightBoxes), function(verticalBox) {
                    if (verticalBox.getPadding) {
                        var boxPadding = verticalBox.getPadding();
                        maxVerticalTopPadding = Math.max(maxVerticalTopPadding, boxPadding.top);
                        maxVerticalBottomPadding = Math.max(maxVerticalBottomPadding, boxPadding.bottom);
                    }
                });

                // At this point, maxChartAreaHeight and maxChartAreaWidth are the size the chart area could
                // be if the axes are drawn at their minimum sizes.
                // Steps 5 & 6
                var totalLeftBoxesWidth = leftPadding;
                var totalRightBoxesWidth = rightPadding;
                var totalTopBoxesHeight = topPadding;
                var totalBottomBoxesHeight = bottomPadding;

                // Function to fit a box
                function fitBox(box) {
                    var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minBox) {
                        return minBox.box === box;
                    });

                    if (minBoxSize) {
                        if (box.isHorizontal()) {
                            var scaleMargin = {
                                left: Math.max(totalLeftBoxesWidth, maxHorizontalLeftPadding),
                                right: Math.max(totalRightBoxesWidth, maxHorizontalRightPadding),
                                top: 0,
                                bottom: 0
                            };

                            // Don't use min size here because of label rotation. When the labels are rotated, their rotation highly depends
                            // on the margin. Sometimes they need to increase in size slightly
                            box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, chartHeight / 2, scaleMargin);
                        } else {
                            box.update(minBoxSize.minSize.width, maxChartAreaHeight);
                        }
                    }
                }

                // Update, and calculate the left and right margins for the horizontal boxes
                helpers.each(leftBoxes.concat(rightBoxes), fitBox);

                helpers.each(leftBoxes, function(box) {
                    totalLeftBoxesWidth += box.width;
                });

                helpers.each(rightBoxes, function(box) {
                    totalRightBoxesWidth += box.width;
                });

                // Set the Left and Right margins for the horizontal boxes
                helpers.each(topBoxes.concat(bottomBoxes), fitBox);

                // Figure out how much margin is on the top and bottom of the vertical boxes
                helpers.each(topBoxes, function(box) {
                    totalTopBoxesHeight += box.height;
                });

                helpers.each(bottomBoxes, function(box) {
                    totalBottomBoxesHeight += box.height;
                });

                function finalFitVerticalBox(box) {
                    var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minSize) {
                        return minSize.box === box;
                    });

                    var scaleMargin = {
                        left: 0,
                        right: 0,
                        top: totalTopBoxesHeight,
                        bottom: totalBottomBoxesHeight
                    };

                    if (minBoxSize) {
                        box.update(minBoxSize.minSize.width, maxChartAreaHeight, scaleMargin);
                    }
                }

                // Let the left layout know the final margin
                helpers.each(leftBoxes.concat(rightBoxes), finalFitVerticalBox);

                // Recalculate because the size of each layout might have changed slightly due to the margins (label rotation for instance)
                totalLeftBoxesWidth = leftPadding;
                totalRightBoxesWidth = rightPadding;
                totalTopBoxesHeight = topPadding;
                totalBottomBoxesHeight = bottomPadding;

                helpers.each(leftBoxes, function(box) {
                    totalLeftBoxesWidth += box.width;
                });

                helpers.each(rightBoxes, function(box) {
                    totalRightBoxesWidth += box.width;
                });

                helpers.each(topBoxes, function(box) {
                    totalTopBoxesHeight += box.height;
                });
                helpers.each(bottomBoxes, function(box) {
                    totalBottomBoxesHeight += box.height;
                });

                // We may be adding some padding to account for rotated x axis labels
                var leftPaddingAddition = Math.max(maxHorizontalLeftPadding - totalLeftBoxesWidth, 0);
                totalLeftBoxesWidth += leftPaddingAddition;
                totalRightBoxesWidth += Math.max(maxHorizontalRightPadding - totalRightBoxesWidth, 0);

                var topPaddingAddition = Math.max(maxVerticalTopPadding - totalTopBoxesHeight, 0);
                totalTopBoxesHeight += topPaddingAddition;
                totalBottomBoxesHeight += Math.max(maxVerticalBottomPadding - totalBottomBoxesHeight, 0);

                // Figure out if our chart area changed. This would occur if the dataset layout label rotation
                // changed due to the application of the margins in step 6. Since we can only get bigger, this is safe to do
                // without calling `fit` again
                var newMaxChartAreaHeight = height - totalTopBoxesHeight - totalBottomBoxesHeight;
                var newMaxChartAreaWidth = width - totalLeftBoxesWidth - totalRightBoxesWidth;

                if (newMaxChartAreaWidth !== maxChartAreaWidth || newMaxChartAreaHeight !== maxChartAreaHeight) {
                    helpers.each(leftBoxes, function(box) {
                        box.height = newMaxChartAreaHeight;
                    });

                    helpers.each(rightBoxes, function(box) {
                        box.height = newMaxChartAreaHeight;
                    });

                    helpers.each(topBoxes, function(box) {
                        if (!box.fullWidth) {
                            box.width = newMaxChartAreaWidth;
                        }
                    });

                    helpers.each(bottomBoxes, function(box) {
                        if (!box.fullWidth) {
                            box.width = newMaxChartAreaWidth;
                        }
                    });

                    maxChartAreaHeight = newMaxChartAreaHeight;
                    maxChartAreaWidth = newMaxChartAreaWidth;
                }

                // Step 7 - Position the boxes
                var left = leftPadding + leftPaddingAddition;
                var top = topPadding + topPaddingAddition;

                function placeBox(box) {
                    if (box.isHorizontal()) {
                        box.left = box.fullWidth ? leftPadding : totalLeftBoxesWidth;
                        box.right = box.fullWidth ? width - rightPadding : totalLeftBoxesWidth + maxChartAreaWidth;
                        box.top = top;
                        box.bottom = top + box.height;

                        // Move to next point
                        top = box.bottom;

                    } else {

                        box.left = left;
                        box.right = left + box.width;
                        box.top = totalTopBoxesHeight;
                        box.bottom = totalTopBoxesHeight + maxChartAreaHeight;

                        // Move to next point
                        left = box.right;
                    }
                }

                helpers.each(leftBoxes.concat(topBoxes), placeBox);

                // Account for chart width and height
                left += maxChartAreaWidth;
                top += maxChartAreaHeight;

                helpers.each(rightBoxes, placeBox);
                helpers.each(bottomBoxes, placeBox);

                // Step 8
                chart.chartArea = {
                    left: totalLeftBoxesWidth,
                    top: totalTopBoxesHeight,
                    right: totalLeftBoxesWidth + maxChartAreaWidth,
                    bottom: totalTopBoxesHeight + maxChartAreaHeight
                };

                // Step 9
                helpers.each(chartAreaBoxes, function(box) {
                    box.left = chart.chartArea.left;
                    box.top = chart.chartArea.top;
                    box.right = chart.chartArea.right;
                    box.bottom = chart.chartArea.bottom;

                    box.update(maxChartAreaWidth, maxChartAreaHeight);
                });
            }
        };

    },{"45":45}],31:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var helpers = require(45);

        defaults._set('global', {
            plugins: {}
        });

        /**
         * The plugin service singleton
         * @namespace Chart.plugins
         * @since 2.1.0
         */
        module.exports = {
            /**
             * Globally registered plugins.
             * @private
             */
            _plugins: [],

            /**
             * This identifier is used to invalidate the descriptors cache attached to each chart
             * when a global plugin is registered or unregistered. In this case, the cache ID is
             * incremented and descriptors are regenerated during following API calls.
             * @private
             */
            _cacheId: 0,

            /**
             * Registers the given plugin(s) if not already registered.
             * @param {Array|Object} plugins plugin instance(s).
             */
            register: function(plugins) {
                var p = this._plugins;
                ([]).concat(plugins).forEach(function(plugin) {
                    if (p.indexOf(plugin) === -1) {
                        p.push(plugin);
                    }
                });

                this._cacheId++;
            },

            /**
             * Unregisters the given plugin(s) only if registered.
             * @param {Array|Object} plugins plugin instance(s).
             */
            unregister: function(plugins) {
                var p = this._plugins;
                ([]).concat(plugins).forEach(function(plugin) {
                    var idx = p.indexOf(plugin);
                    if (idx !== -1) {
                        p.splice(idx, 1);
                    }
                });

                this._cacheId++;
            },

            /**
             * Remove all registered plugins.
             * @since 2.1.5
             */
            clear: function() {
                this._plugins = [];
                this._cacheId++;
            },

            /**
             * Returns the number of registered plugins?
             * @returns {Number}
             * @since 2.1.5
             */
            count: function() {
                return this._plugins.length;
            },

            /**
             * Returns all registered plugin instances.
             * @returns {Array} array of plugin objects.
             * @since 2.1.5
             */
            getAll: function() {
                return this._plugins;
            },

            /**
             * Calls enabled plugins for `chart` on the specified hook and with the given args.
             * This method immediately returns as soon as a plugin explicitly returns false. The
             * returned value can be used, for instance, to interrupt the current action.
             * @param {Object} chart - The chart instance for which plugins should be called.
             * @param {String} hook - The name of the plugin method to call (e.g. 'beforeUpdate').
             * @param {Array} [args] - Extra arguments to apply to the hook call.
             * @returns {Boolean} false if any of the plugins return false, else returns true.
             */
            notify: function(chart, hook, args) {
                var descriptors = this.descriptors(chart);
                var ilen = descriptors.length;
                var i, descriptor, plugin, params, method;

                for (i = 0; i < ilen; ++i) {
                    descriptor = descriptors[i];
                    plugin = descriptor.plugin;
                    method = plugin[hook];
                    if (typeof method === 'function') {
                        params = [chart].concat(args || []);
                        params.push(descriptor.options);
                        if (method.apply(plugin, params) === false) {
                            return false;
                        }
                    }
                }

                return true;
            },

            /**
             * Returns descriptors of enabled plugins for the given chart.
             * @returns {Array} [{ plugin, options }]
             * @private
             */
            descriptors: function(chart) {
                var cache = chart.$plugins || (chart.$plugins = {});
                if (cache.id === this._cacheId) {
                    return cache.descriptors;
                }

                var plugins = [];
                var descriptors = [];
                var config = (chart && chart.config) || {};
                var options = (config.options && config.options.plugins) || {};

                this._plugins.concat(config.plugins || []).forEach(function(plugin) {
                    var idx = plugins.indexOf(plugin);
                    if (idx !== -1) {
                        return;
                    }

                    var id = plugin.id;
                    var opts = options[id];
                    if (opts === false) {
                        return;
                    }

                    if (opts === true) {
                        opts = helpers.clone(defaults.global.plugins[id]);
                    }

                    plugins.push(plugin);
                    descriptors.push({
                        plugin: plugin,
                        options: opts || {}
                    });
                });

                cache.descriptors = descriptors;
                cache.id = this._cacheId;
                return descriptors;
            },

            /**
             * Invalidates cache for the given chart: descriptors hold a reference on plugin option,
             * but in some cases, this reference can be changed by the user when updating options.
             * https://github.com/chartjs/Chart.js/issues/5111#issuecomment-355934167
             * @private
             */
            _invalidate: function(chart) {
                delete chart.$plugins;
            }
        };

        /**
         * Plugin extension hooks.
         * @interface IPlugin
         * @since 2.1.0
         */
        /**
         * @method IPlugin#beforeInit
         * @desc Called before initializing `chart`.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Object} options - The plugin options.
         */
        /**
         * @method IPlugin#afterInit
         * @desc Called after `chart` has been initialized and before the first update.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Object} options - The plugin options.
         */
        /**
         * @method IPlugin#beforeUpdate
         * @desc Called before updating `chart`. If any plugin returns `false`, the update
         * is cancelled (and thus subsequent render(s)) until another `update` is triggered.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Object} options - The plugin options.
         * @returns {Boolean} `false` to cancel the chart update.
         */
        /**
         * @method IPlugin#afterUpdate
         * @desc Called after `chart` has been updated and before rendering. Note that this
         * hook will not be called if the chart update has been previously cancelled.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Object} options - The plugin options.
         */
        /**
         * @method IPlugin#beforeDatasetsUpdate
         * @desc Called before updating the `chart` datasets. If any plugin returns `false`,
         * the datasets update is cancelled until another `update` is triggered.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Object} options - The plugin options.
         * @returns {Boolean} false to cancel the datasets update.
         * @since version 2.1.5
         */
        /**
         * @method IPlugin#afterDatasetsUpdate
         * @desc Called after the `chart` datasets have been updated. Note that this hook
         * will not be called if the datasets update has been previously cancelled.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Object} options - The plugin options.
         * @since version 2.1.5
         */
        /**
         * @method IPlugin#beforeDatasetUpdate
         * @desc Called before updating the `chart` dataset at the given `args.index`. If any plugin
         * returns `false`, the datasets update is cancelled until another `update` is triggered.
         * @param {Chart} chart - The chart instance.
         * @param {Object} args - The call arguments.
         * @param {Number} args.index - The dataset index.
         * @param {Object} args.meta - The dataset metadata.
         * @param {Object} options - The plugin options.
         * @returns {Boolean} `false` to cancel the chart datasets drawing.
         */
        /**
         * @method IPlugin#afterDatasetUpdate
         * @desc Called after the `chart` datasets at the given `args.index` has been updated. Note
         * that this hook will not be called if the datasets update has been previously cancelled.
         * @param {Chart} chart - The chart instance.
         * @param {Object} args - The call arguments.
         * @param {Number} args.index - The dataset index.
         * @param {Object} args.meta - The dataset metadata.
         * @param {Object} options - The plugin options.
         */
        /**
         * @method IPlugin#beforeLayout
         * @desc Called before laying out `chart`. If any plugin returns `false`,
         * the layout update is cancelled until another `update` is triggered.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Object} options - The plugin options.
         * @returns {Boolean} `false` to cancel the chart layout.
         */
        /**
         * @method IPlugin#afterLayout
         * @desc Called after the `chart` has been layed out. Note that this hook will not
         * be called if the layout update has been previously cancelled.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Object} options - The plugin options.
         */
        /**
         * @method IPlugin#beforeRender
         * @desc Called before rendering `chart`. If any plugin returns `false`,
         * the rendering is cancelled until another `render` is triggered.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Object} options - The plugin options.
         * @returns {Boolean} `false` to cancel the chart rendering.
         */
        /**
         * @method IPlugin#afterRender
         * @desc Called after the `chart` has been fully rendered (and animation completed). Note
         * that this hook will not be called if the rendering has been previously cancelled.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Object} options - The plugin options.
         */
        /**
         * @method IPlugin#beforeDraw
         * @desc Called before drawing `chart` at every animation frame specified by the given
         * easing value. If any plugin returns `false`, the frame drawing is cancelled until
         * another `render` is triggered.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
         * @param {Object} options - The plugin options.
         * @returns {Boolean} `false` to cancel the chart drawing.
         */
        /**
         * @method IPlugin#afterDraw
         * @desc Called after the `chart` has been drawn for the specific easing value. Note
         * that this hook will not be called if the drawing has been previously cancelled.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
         * @param {Object} options - The plugin options.
         */
        /**
         * @method IPlugin#beforeDatasetsDraw
         * @desc Called before drawing the `chart` datasets. If any plugin returns `false`,
         * the datasets drawing is cancelled until another `render` is triggered.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
         * @param {Object} options - The plugin options.
         * @returns {Boolean} `false` to cancel the chart datasets drawing.
         */
        /**
         * @method IPlugin#afterDatasetsDraw
         * @desc Called after the `chart` datasets have been drawn. Note that this hook
         * will not be called if the datasets drawing has been previously cancelled.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
         * @param {Object} options - The plugin options.
         */
        /**
         * @method IPlugin#beforeDatasetDraw
         * @desc Called before drawing the `chart` dataset at the given `args.index` (datasets
         * are drawn in the reverse order). If any plugin returns `false`, the datasets drawing
         * is cancelled until another `render` is triggered.
         * @param {Chart} chart - The chart instance.
         * @param {Object} args - The call arguments.
         * @param {Number} args.index - The dataset index.
         * @param {Object} args.meta - The dataset metadata.
         * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
         * @param {Object} options - The plugin options.
         * @returns {Boolean} `false` to cancel the chart datasets drawing.
         */
        /**
         * @method IPlugin#afterDatasetDraw
         * @desc Called after the `chart` datasets at the given `args.index` have been drawn
         * (datasets are drawn in the reverse order). Note that this hook will not be called
         * if the datasets drawing has been previously cancelled.
         * @param {Chart} chart - The chart instance.
         * @param {Object} args - The call arguments.
         * @param {Number} args.index - The dataset index.
         * @param {Object} args.meta - The dataset metadata.
         * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
         * @param {Object} options - The plugin options.
         */
        /**
         * @method IPlugin#beforeTooltipDraw
         * @desc Called before drawing the `tooltip`. If any plugin returns `false`,
         * the tooltip drawing is cancelled until another `render` is triggered.
         * @param {Chart} chart - The chart instance.
         * @param {Object} args - The call arguments.
         * @param {Object} args.tooltip - The tooltip.
         * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
         * @param {Object} options - The plugin options.
         * @returns {Boolean} `false` to cancel the chart tooltip drawing.
         */
        /**
         * @method IPlugin#afterTooltipDraw
         * @desc Called after drawing the `tooltip`. Note that this hook will not
         * be called if the tooltip drawing has been previously cancelled.
         * @param {Chart} chart - The chart instance.
         * @param {Object} args - The call arguments.
         * @param {Object} args.tooltip - The tooltip.
         * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
         * @param {Object} options - The plugin options.
         */
        /**
         * @method IPlugin#beforeEvent
         * @desc Called before processing the specified `event`. If any plugin returns `false`,
         * the event will be discarded.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {IEvent} event - The event object.
         * @param {Object} options - The plugin options.
         */
        /**
         * @method IPlugin#afterEvent
         * @desc Called after the `event` has been consumed. Note that this hook
         * will not be called if the `event` has been previously discarded.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {IEvent} event - The event object.
         * @param {Object} options - The plugin options.
         */
        /**
         * @method IPlugin#resize
         * @desc Called after the chart as been resized.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Number} size - The new canvas display size (eq. canvas.style width & height).
         * @param {Object} options - The plugin options.
         */
        /**
         * @method IPlugin#destroy
         * @desc Called after the chart as been destroyed.
         * @param {Chart.Controller} chart - The chart instance.
         * @param {Object} options - The plugin options.
         */

    },{"25":25,"45":45}],32:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var Element = require(26);
        var helpers = require(45);
        var Ticks = require(34);

        defaults._set('scale', {
            display: true,
            position: 'left',
            offset: false,

            // grid line settings
            gridLines: {
                display: true,
                color: 'rgba(0, 0, 0, 0.1)',
                lineWidth: 1,
                drawBorder: true,
                drawOnChartArea: true,
                drawTicks: true,
                tickMarkLength: 10,
                zeroLineWidth: 1,
                zeroLineColor: 'rgba(0,0,0,0.25)',
                zeroLineBorderDash: [],
                zeroLineBorderDashOffset: 0.0,
                offsetGridLines: false,
                borderDash: [],
                borderDashOffset: 0.0
            },

            // scale label
            scaleLabel: {
                // display property
                display: false,

                // actual label
                labelString: '',

                // line height
                lineHeight: 1.2,

                // top/bottom padding
                padding: {
                    top: 4,
                    bottom: 4
                }
            },

            // label settings
            ticks: {
                beginAtZero: false,
                minRotation: 0,
                maxRotation: 50,
                mirror: false,
                padding: 0,
                reverse: false,
                display: true,
                autoSkip: true,
                autoSkipPadding: 0,
                labelOffset: 0,
                // We pass through arrays to be rendered as multiline labels, we convert Others to strings here.
                callback: Ticks.formatters.values,
                minor: {},
                major: {}
            }
        });

        function labelsFromTicks(ticks) {
            var labels = [];
            var i, ilen;

            for (i = 0, ilen = ticks.length; i < ilen; ++i) {
                labels.push(ticks[i].label);
            }

            return labels;
        }

        function getLineValue(scale, index, offsetGridLines) {
            var lineValue = scale.getPixelForTick(index);

            if (offsetGridLines) {
                if (index === 0) {
                    lineValue -= (scale.getPixelForTick(1) - lineValue) / 2;
                } else {
                    lineValue -= (lineValue - scale.getPixelForTick(index - 1)) / 2;
                }
            }
            return lineValue;
        }

        module.exports = function(Chart) {

            function computeTextSize(context, tick, font) {
                return helpers.isArray(tick) ?
                    helpers.longestText(context, font, tick) :
                    context.measureText(tick).width;
            }

            function parseFontOptions(options) {
                var valueOrDefault = helpers.valueOrDefault;
                var globalDefaults = defaults.global;
                var size = valueOrDefault(options.fontSize, globalDefaults.defaultFontSize);
                var style = valueOrDefault(options.fontStyle, globalDefaults.defaultFontStyle);
                var family = valueOrDefault(options.fontFamily, globalDefaults.defaultFontFamily);

                return {
                    size: size,
                    style: style,
                    family: family,
                    font: helpers.fontString(size, style, family)
                };
            }

            function parseLineHeight(options) {
                return helpers.options.toLineHeight(
                    helpers.valueOrDefault(options.lineHeight, 1.2),
                    helpers.valueOrDefault(options.fontSize, defaults.global.defaultFontSize));
            }

            Chart.Scale = Element.extend({
                /**
                 * Get the padding needed for the scale
                 * @method getPadding
                 * @private
                 * @returns {Padding} the necessary padding
                 */
                getPadding: function() {
                    var me = this;
                    return {
                        left: me.paddingLeft || 0,
                        top: me.paddingTop || 0,
                        right: me.paddingRight || 0,
                        bottom: me.paddingBottom || 0
                    };
                },

                /**
                 * Returns the scale tick objects ({label, major})
                 * @since 2.7
                 */
                getTicks: function() {
                    return this._ticks;
                },

                // These methods are ordered by lifecyle. Utilities then follow.
                // Any function defined here is inherited by all scale types.
                // Any function can be extended by the scale type

                mergeTicksOptions: function() {
                    var ticks = this.options.ticks;
                    if (ticks.minor === false) {
                        ticks.minor = {
                            display: false
                        };
                    }
                    if (ticks.major === false) {
                        ticks.major = {
                            display: false
                        };
                    }
                    for (var key in ticks) {
                        if (key !== 'major' && key !== 'minor') {
                            if (typeof ticks.minor[key] === 'undefined') {
                                ticks.minor[key] = ticks[key];
                            }
                            if (typeof ticks.major[key] === 'undefined') {
                                ticks.major[key] = ticks[key];
                            }
                        }
                    }
                },
                beforeUpdate: function() {
                    helpers.callback(this.options.beforeUpdate, [this]);
                },
                update: function(maxWidth, maxHeight, margins) {
                    var me = this;
                    var i, ilen, labels, label, ticks, tick;

                    // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
                    me.beforeUpdate();

                    // Absorb the master measurements
                    me.maxWidth = maxWidth;
                    me.maxHeight = maxHeight;
                    me.margins = helpers.extend({
                        left: 0,
                        right: 0,
                        top: 0,
                        bottom: 0
                    }, margins);
                    me.longestTextCache = me.longestTextCache || {};

                    // Dimensions
                    me.beforeSetDimensions();
                    me.setDimensions();
                    me.afterSetDimensions();

                    // Data min/max
                    me.beforeDataLimits();
                    me.determineDataLimits();
                    me.afterDataLimits();

                    // Ticks - `this.ticks` is now DEPRECATED!
                    // Internal ticks are now stored as objects in the PRIVATE `this._ticks` member
                    // and must not be accessed directly from outside this class. `this.ticks` being
                    // around for long time and not marked as private, we can't change its structure
                    // without unexpected breaking changes. If you need to access the scale ticks,
                    // use scale.getTicks() instead.

                    me.beforeBuildTicks();

                    // New implementations should return an array of objects but for BACKWARD COMPAT,
                    // we still support no return (`this.ticks` internally set by calling this method).
                    ticks = me.buildTicks() || [];

                    me.afterBuildTicks();

                    me.beforeTickToLabelConversion();

                    // New implementations should return the formatted tick labels but for BACKWARD
                    // COMPAT, we still support no return (`this.ticks` internally changed by calling
                    // this method and supposed to contain only string values).
                    labels = me.convertTicksToLabels(ticks) || me.ticks;

                    me.afterTickToLabelConversion();

                    me.ticks = labels;   // BACKWARD COMPATIBILITY

                    // IMPORTANT: from this point, we consider that `this.ticks` will NEVER change!

                    // BACKWARD COMPAT: synchronize `_ticks` with labels (so potentially `this.ticks`)
                    for (i = 0, ilen = labels.length; i < ilen; ++i) {
                        label = labels[i];
                        tick = ticks[i];
                        if (!tick) {
                            ticks.push(tick = {
                                label: label,
                                major: false
                            });
                        } else {
                            tick.label = label;
                        }
                    }

                    me._ticks = ticks;

                    // Tick Rotation
                    me.beforeCalculateTickRotation();
                    me.calculateTickRotation();
                    me.afterCalculateTickRotation();
                    // Fit
                    me.beforeFit();
                    me.fit();
                    me.afterFit();
                    //
                    me.afterUpdate();

                    return me.minSize;

                },
                afterUpdate: function() {
                    helpers.callback(this.options.afterUpdate, [this]);
                },

                //

                beforeSetDimensions: function() {
                    helpers.callback(this.options.beforeSetDimensions, [this]);
                },
                setDimensions: function() {
                    var me = this;
                    // Set the unconstrained dimension before label rotation
                    if (me.isHorizontal()) {
                        // Reset position before calculating rotation
                        me.width = me.maxWidth;
                        me.left = 0;
                        me.right = me.width;
                    } else {
                        me.height = me.maxHeight;

                        // Reset position before calculating rotation
                        me.top = 0;
                        me.bottom = me.height;
                    }

                    // Reset padding
                    me.paddingLeft = 0;
                    me.paddingTop = 0;
                    me.paddingRight = 0;
                    me.paddingBottom = 0;
                },
                afterSetDimensions: function() {
                    helpers.callback(this.options.afterSetDimensions, [this]);
                },

                // Data limits
                beforeDataLimits: function() {
                    helpers.callback(this.options.beforeDataLimits, [this]);
                },
                determineDataLimits: helpers.noop,
                afterDataLimits: function() {
                    helpers.callback(this.options.afterDataLimits, [this]);
                },

                //
                beforeBuildTicks: function() {
                    helpers.callback(this.options.beforeBuildTicks, [this]);
                },
                buildTicks: helpers.noop,
                afterBuildTicks: function() {
                    helpers.callback(this.options.afterBuildTicks, [this]);
                },

                beforeTickToLabelConversion: function() {
                    helpers.callback(this.options.beforeTickToLabelConversion, [this]);
                },
                convertTicksToLabels: function() {
                    var me = this;
                    // Convert ticks to strings
                    var tickOpts = me.options.ticks;
                    me.ticks = me.ticks.map(tickOpts.userCallback || tickOpts.callback, this);
                },
                afterTickToLabelConversion: function() {
                    helpers.callback(this.options.afterTickToLabelConversion, [this]);
                },

                //

                beforeCalculateTickRotation: function() {
                    helpers.callback(this.options.beforeCalculateTickRotation, [this]);
                },
                calculateTickRotation: function() {
                    var me = this;
                    var context = me.ctx;
                    var tickOpts = me.options.ticks;
                    var labels = labelsFromTicks(me._ticks);

                    // Get the width of each grid by calculating the difference
                    // between x offsets between 0 and 1.
                    var tickFont = parseFontOptions(tickOpts);
                    context.font = tickFont.font;

                    var labelRotation = tickOpts.minRotation || 0;

                    if (labels.length && me.options.display && me.isHorizontal()) {
                        var originalLabelWidth = helpers.longestText(context, tickFont.font, labels, me.longestTextCache);
                        var labelWidth = originalLabelWidth;
                        var cosRotation, sinRotation;

                        // Allow 3 pixels x2 padding either side for label readability
                        var tickWidth = me.getPixelForTick(1) - me.getPixelForTick(0) - 6;

                        // Max label rotation can be set or default to 90 - also act as a loop counter
                        while (labelWidth > tickWidth && labelRotation < tickOpts.maxRotation) {
                            var angleRadians = helpers.toRadians(labelRotation);
                            cosRotation = Math.cos(angleRadians);
                            sinRotation = Math.sin(angleRadians);

                            if (sinRotation * originalLabelWidth > me.maxHeight) {
                                // go back one step
                                labelRotation--;
                                break;
                            }

                            labelRotation++;
                            labelWidth = cosRotation * originalLabelWidth;
                        }
                    }

                    me.labelRotation = labelRotation;
                },
                afterCalculateTickRotation: function() {
                    helpers.callback(this.options.afterCalculateTickRotation, [this]);
                },

                //

                beforeFit: function() {
                    helpers.callback(this.options.beforeFit, [this]);
                },
                fit: function() {
                    var me = this;
                    // Reset
                    var minSize = me.minSize = {
                        width: 0,
                        height: 0
                    };

                    var labels = labelsFromTicks(me._ticks);

                    var opts = me.options;
                    var tickOpts = opts.ticks;
                    var scaleLabelOpts = opts.scaleLabel;
                    var gridLineOpts = opts.gridLines;
                    var display = opts.display;
                    var isHorizontal = me.isHorizontal();

                    var tickFont = parseFontOptions(tickOpts);
                    var tickMarkLength = opts.gridLines.tickMarkLength;

                    // Width
                    if (isHorizontal) {
                        // subtract the margins to line up with the chartArea if we are a full width scale
                        minSize.width = me.isFullWidth() ? me.maxWidth - me.margins.left - me.margins.right : me.maxWidth;
                    } else {
                        minSize.width = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
                    }

                    // height
                    if (isHorizontal) {
                        minSize.height = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
                    } else {
                        minSize.height = me.maxHeight; // fill all the height
                    }

                    // Are we showing a title for the scale?
                    if (scaleLabelOpts.display && display) {
                        var scaleLabelLineHeight = parseLineHeight(scaleLabelOpts);
                        var scaleLabelPadding = helpers.options.toPadding(scaleLabelOpts.padding);
                        var deltaHeight = scaleLabelLineHeight + scaleLabelPadding.height;

                        if (isHorizontal) {
                            minSize.height += deltaHeight;
                        } else {
                            minSize.width += deltaHeight;
                        }
                    }

                    // Don't bother fitting the ticks if we are not showing them
                    if (tickOpts.display && display) {
                        var largestTextWidth = helpers.longestText(me.ctx, tickFont.font, labels, me.longestTextCache);
                        var tallestLabelHeightInLines = helpers.numberOfLabelLines(labels);
                        var lineSpace = tickFont.size * 0.5;
                        var tickPadding = me.options.ticks.padding;

                        if (isHorizontal) {
                            // A horizontal axis is more constrained by the height.
                            me.longestLabelWidth = largestTextWidth;

                            var angleRadians = helpers.toRadians(me.labelRotation);
                            var cosRotation = Math.cos(angleRadians);
                            var sinRotation = Math.sin(angleRadians);

                            // TODO - improve this calculation
                            var labelHeight = (sinRotation * largestTextWidth)
                                + (tickFont.size * tallestLabelHeightInLines)
                                + (lineSpace * (tallestLabelHeightInLines - 1))
                                + lineSpace; // padding

                            minSize.height = Math.min(me.maxHeight, minSize.height + labelHeight + tickPadding);

                            me.ctx.font = tickFont.font;
                            var firstLabelWidth = computeTextSize(me.ctx, labels[0], tickFont.font);
                            var lastLabelWidth = computeTextSize(me.ctx, labels[labels.length - 1], tickFont.font);

                            // Ensure that our ticks are always inside the canvas. When rotated, ticks are right aligned
                            // which means that the right padding is dominated by the font height
                            if (me.labelRotation !== 0) {
                                me.paddingLeft = opts.position === 'bottom' ? (cosRotation * firstLabelWidth) + 3 : (cosRotation * lineSpace) + 3; // add 3 px to move away from canvas edges
                                me.paddingRight = opts.position === 'bottom' ? (cosRotation * lineSpace) + 3 : (cosRotation * lastLabelWidth) + 3;
                            } else {
                                me.paddingLeft = firstLabelWidth / 2 + 3; // add 3 px to move away from canvas edges
                                me.paddingRight = lastLabelWidth / 2 + 3;
                            }
                        } else {
                            // A vertical axis is more constrained by the width. Labels are the
                            // dominant factor here, so get that length first and account for padding
                            if (tickOpts.mirror) {
                                largestTextWidth = 0;
                            } else {
                                // use lineSpace for consistency with horizontal axis
                                // tickPadding is not implemented for horizontal
                                largestTextWidth += tickPadding + lineSpace;
                            }

                            minSize.width = Math.min(me.maxWidth, minSize.width + largestTextWidth);

                            me.paddingTop = tickFont.size / 2;
                            me.paddingBottom = tickFont.size / 2;
                        }
                    }

                    me.handleMargins();

                    me.width = minSize.width;
                    me.height = minSize.height;
                },

                /**
                 * Handle margins and padding interactions
                 * @private
                 */
                handleMargins: function() {
                    var me = this;
                    if (me.margins) {
                        me.paddingLeft = Math.max(me.paddingLeft - me.margins.left, 0);
                        me.paddingTop = Math.max(me.paddingTop - me.margins.top, 0);
                        me.paddingRight = Math.max(me.paddingRight - me.margins.right, 0);
                        me.paddingBottom = Math.max(me.paddingBottom - me.margins.bottom, 0);
                    }
                },

                afterFit: function() {
                    helpers.callback(this.options.afterFit, [this]);
                },

                // Shared Methods
                isHorizontal: function() {
                    return this.options.position === 'top' || this.options.position === 'bottom';
                },
                isFullWidth: function() {
                    return (this.options.fullWidth);
                },

                // Get the correct value. NaN bad inputs, If the value type is object get the x or y based on whether we are horizontal or not
                getRightValue: function(rawValue) {
                    // Null and undefined values first
                    if (helpers.isNullOrUndef(rawValue)) {
                        return NaN;
                    }
                    // isNaN(object) returns true, so make sure NaN is checking for a number; Discard Infinite values
                    if (typeof rawValue === 'number' && !isFinite(rawValue)) {
                        return NaN;
                    }
                    // If it is in fact an object, dive in one more level
                    if (rawValue) {
                        if (this.isHorizontal()) {
                            if (rawValue.x !== undefined) {
                                return this.getRightValue(rawValue.x);
                            }
                        } else if (rawValue.y !== undefined) {
                            return this.getRightValue(rawValue.y);
                        }
                    }

                    // Value is good, return it
                    return rawValue;
                },

                /**
                 * Used to get the value to display in the tooltip for the data at the given index
                 * @param index
                 * @param datasetIndex
                 */
                getLabelForIndex: helpers.noop,

                /**
                 * Returns the location of the given data point. Value can either be an index or a numerical value
                 * The coordinate (0, 0) is at the upper-left corner of the canvas
                 * @param value
                 * @param index
                 * @param datasetIndex
                 */
                getPixelForValue: helpers.noop,

                /**
                 * Used to get the data value from a given pixel. This is the inverse of getPixelForValue
                 * The coordinate (0, 0) is at the upper-left corner of the canvas
                 * @param pixel
                 */
                getValueForPixel: helpers.noop,

                /**
                 * Returns the location of the tick at the given index
                 * The coordinate (0, 0) is at the upper-left corner of the canvas
                 */
                getPixelForTick: function(index) {
                    var me = this;
                    var offset = me.options.offset;
                    if (me.isHorizontal()) {
                        var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
                        var tickWidth = innerWidth / Math.max((me._ticks.length - (offset ? 0 : 1)), 1);
                        var pixel = (tickWidth * index) + me.paddingLeft;

                        if (offset) {
                            pixel += tickWidth / 2;
                        }

                        var finalVal = me.left + Math.round(pixel);
                        finalVal += me.isFullWidth() ? me.margins.left : 0;
                        return finalVal;
                    }
                    var innerHeight = me.height - (me.paddingTop + me.paddingBottom);
                    return me.top + (index * (innerHeight / (me._ticks.length - 1)));
                },

                /**
                 * Utility for getting the pixel location of a percentage of scale
                 * The coordinate (0, 0) is at the upper-left corner of the canvas
                 */
                getPixelForDecimal: function(decimal) {
                    var me = this;
                    if (me.isHorizontal()) {
                        var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
                        var valueOffset = (innerWidth * decimal) + me.paddingLeft;

                        var finalVal = me.left + Math.round(valueOffset);
                        finalVal += me.isFullWidth() ? me.margins.left : 0;
                        return finalVal;
                    }
                    return me.top + (decimal * me.height);
                },

                /**
                 * Returns the pixel for the minimum chart value
                 * The coordinate (0, 0) is at the upper-left corner of the canvas
                 */
                getBasePixel: function() {
                    return this.getPixelForValue(this.getBaseValue());
                },

                getBaseValue: function() {
                    var me = this;
                    var min = me.min;
                    var max = me.max;

                    return me.beginAtZero ? 0 :
                        min < 0 && max < 0 ? max :
                            min > 0 && max > 0 ? min :
                                0;
                },

                /**
                 * Returns a subset of ticks to be plotted to avoid overlapping labels.
                 * @private
                 */
                _autoSkip: function(ticks) {
                    var skipRatio;
                    var me = this;
                    var isHorizontal = me.isHorizontal();
                    var optionTicks = me.options.ticks.minor;
                    var tickCount = ticks.length;
                    var labelRotationRadians = helpers.toRadians(me.labelRotation);
                    var cosRotation = Math.cos(labelRotationRadians);
                    var longestRotatedLabel = me.longestLabelWidth * cosRotation;
                    var result = [];
                    var i, tick, shouldSkip;

                    // figure out the maximum number of gridlines to show
                    var maxTicks;
                    if (optionTicks.maxTicksLimit) {
                        maxTicks = optionTicks.maxTicksLimit;
                    }

                    if (isHorizontal) {
                        skipRatio = false;

                        if ((longestRotatedLabel + optionTicks.autoSkipPadding) * tickCount > (me.width - (me.paddingLeft + me.paddingRight))) {
                            skipRatio = 1 + Math.floor(((longestRotatedLabel + optionTicks.autoSkipPadding) * tickCount) / (me.width - (me.paddingLeft + me.paddingRight)));
                        }

                        // if they defined a max number of optionTicks,
                        // increase skipRatio until that number is met
                        if (maxTicks && tickCount > maxTicks) {
                            skipRatio = Math.max(skipRatio, Math.floor(tickCount / maxTicks));
                        }
                    }

                    for (i = 0; i < tickCount; i++) {
                        tick = ticks[i];

                        // Since we always show the last tick,we need may need to hide the last shown one before
                        shouldSkip = (skipRatio > 1 && i % skipRatio > 0) || (i % skipRatio === 0 && i + skipRatio >= tickCount);
                        if (shouldSkip && i !== tickCount - 1) {
                            // leave tick in place but make sure it's not displayed (#4635)
                            delete tick.label;
                        }
                        result.push(tick);
                    }
                    return result;
                },

                // Actually draw the scale on the canvas
                // @param {rectangle} chartArea : the area of the chart to draw full grid lines on
                draw: function(chartArea) {
                    var me = this;
                    var options = me.options;
                    if (!options.display) {
                        return;
                    }

                    var context = me.ctx;
                    var globalDefaults = defaults.global;
                    var optionTicks = options.ticks.minor;
                    var optionMajorTicks = options.ticks.major || optionTicks;
                    var gridLines = options.gridLines;
                    var scaleLabel = options.scaleLabel;

                    var isRotated = me.labelRotation !== 0;
                    var isHorizontal = me.isHorizontal();

                    var ticks = optionTicks.autoSkip ? me._autoSkip(me.getTicks()) : me.getTicks();
                    var tickFontColor = helpers.valueOrDefault(optionTicks.fontColor, globalDefaults.defaultFontColor);
                    var tickFont = parseFontOptions(optionTicks);
                    var majorTickFontColor = helpers.valueOrDefault(optionMajorTicks.fontColor, globalDefaults.defaultFontColor);
                    var majorTickFont = parseFontOptions(optionMajorTicks);

                    var tl = gridLines.drawTicks ? gridLines.tickMarkLength : 0;

                    var scaleLabelFontColor = helpers.valueOrDefault(scaleLabel.fontColor, globalDefaults.defaultFontColor);
                    var scaleLabelFont = parseFontOptions(scaleLabel);
                    var scaleLabelPadding = helpers.options.toPadding(scaleLabel.padding);
                    var labelRotationRadians = helpers.toRadians(me.labelRotation);

                    var itemsToDraw = [];

                    var axisWidth = me.options.gridLines.lineWidth;
                    var xTickStart = options.position === 'right' ? me.right : me.right - axisWidth - tl;
                    var xTickEnd = options.position === 'right' ? me.right + tl : me.right;
                    var yTickStart = options.position === 'bottom' ? me.top + axisWidth : me.bottom - tl - axisWidth;
                    var yTickEnd = options.position === 'bottom' ? me.top + axisWidth + tl : me.bottom + axisWidth;

                    helpers.each(ticks, function(tick, index) {
                        // autoskipper skipped this tick (#4635)
                        if (helpers.isNullOrUndef(tick.label)) {
                            return;
                        }

                        var label = tick.label;
                        var lineWidth, lineColor, borderDash, borderDashOffset;
                        if (index === me.zeroLineIndex && options.offset === gridLines.offsetGridLines) {
                            // Draw the first index specially
                            lineWidth = gridLines.zeroLineWidth;
                            lineColor = gridLines.zeroLineColor;
                            borderDash = gridLines.zeroLineBorderDash;
                            borderDashOffset = gridLines.zeroLineBorderDashOffset;
                        } else {
                            lineWidth = helpers.valueAtIndexOrDefault(gridLines.lineWidth, index);
                            lineColor = helpers.valueAtIndexOrDefault(gridLines.color, index);
                            borderDash = helpers.valueOrDefault(gridLines.borderDash, globalDefaults.borderDash);
                            borderDashOffset = helpers.valueOrDefault(gridLines.borderDashOffset, globalDefaults.borderDashOffset);
                        }

                        // Common properties
                        var tx1, ty1, tx2, ty2, x1, y1, x2, y2, labelX, labelY;
                        var textAlign = 'middle';
                        var textBaseline = 'middle';
                        var tickPadding = optionTicks.padding;

                        if (isHorizontal) {
                            var labelYOffset = tl + tickPadding;

                            if (options.position === 'bottom') {
                                // bottom
                                textBaseline = !isRotated ? 'top' : 'middle';
                                textAlign = !isRotated ? 'center' : 'right';
                                labelY = me.top + labelYOffset;
                            } else {
                                // top
                                textBaseline = !isRotated ? 'bottom' : 'middle';
                                textAlign = !isRotated ? 'center' : 'left';
                                labelY = me.bottom - labelYOffset;
                            }

                            var xLineValue = getLineValue(me, index, gridLines.offsetGridLines && ticks.length > 1);
                            if (xLineValue < me.left) {
                                lineColor = 'rgba(0,0,0,0)';
                            }
                            xLineValue += helpers.aliasPixel(lineWidth);

                            labelX = me.getPixelForTick(index) + optionTicks.labelOffset; // x values for optionTicks (need to consider offsetLabel option)

                            tx1 = tx2 = x1 = x2 = xLineValue;
                            ty1 = yTickStart;
                            ty2 = yTickEnd;
                            y1 = chartArea.top;
                            y2 = chartArea.bottom + axisWidth;
                        } else {
                            var isLeft = options.position === 'left';
                            var labelXOffset;

                            if (optionTicks.mirror) {
                                textAlign = isLeft ? 'left' : 'right';
                                labelXOffset = tickPadding;
                            } else {
                                textAlign = isLeft ? 'right' : 'left';
                                labelXOffset = tl + tickPadding;
                            }

                            labelX = isLeft ? me.right - labelXOffset : me.left + labelXOffset;

                            var yLineValue = getLineValue(me, index, gridLines.offsetGridLines && ticks.length > 1);
                            if (yLineValue < me.top) {
                                lineColor = 'rgba(0,0,0,0)';
                            }
                            yLineValue += helpers.aliasPixel(lineWidth);

                            labelY = me.getPixelForTick(index) + optionTicks.labelOffset;

                            tx1 = xTickStart;
                            tx2 = xTickEnd;
                            x1 = chartArea.left;
                            x2 = chartArea.right + axisWidth;
                            ty1 = ty2 = y1 = y2 = yLineValue;
                        }

                        itemsToDraw.push({
                            tx1: tx1,
                            ty1: ty1,
                            tx2: tx2,
                            ty2: ty2,
                            x1: x1,
                            y1: y1,
                            x2: x2,
                            y2: y2,
                            labelX: labelX,
                            labelY: labelY,
                            glWidth: lineWidth,
                            glColor: lineColor,
                            glBorderDash: borderDash,
                            glBorderDashOffset: borderDashOffset,
                            rotation: -1 * labelRotationRadians,
                            label: label,
                            major: tick.major,
                            textBaseline: textBaseline,
                            textAlign: textAlign
                        });
                    });

                    // Draw all of the tick labels, tick marks, and grid lines at the correct places
                    helpers.each(itemsToDraw, function(itemToDraw) {
                        if (gridLines.display) {
                            context.save();
                            context.lineWidth = itemToDraw.glWidth;
                            context.strokeStyle = itemToDraw.glColor;
                            if (context.setLineDash) {
                                context.setLineDash(itemToDraw.glBorderDash);
                                context.lineDashOffset = itemToDraw.glBorderDashOffset;
                            }

                            context.beginPath();

                            if (gridLines.drawTicks) {
                                context.moveTo(itemToDraw.tx1, itemToDraw.ty1);
                                context.lineTo(itemToDraw.tx2, itemToDraw.ty2);
                            }

                            if (gridLines.drawOnChartArea) {
                                context.moveTo(itemToDraw.x1, itemToDraw.y1);
                                context.lineTo(itemToDraw.x2, itemToDraw.y2);
                            }

                            context.stroke();
                            context.restore();
                        }

                        if (optionTicks.display) {
                            // Make sure we draw text in the correct color and font
                            context.save();
                            context.translate(itemToDraw.labelX, itemToDraw.labelY);
                            context.rotate(itemToDraw.rotation);
                            context.font = itemToDraw.major ? majorTickFont.font : tickFont.font;
                            context.fillStyle = itemToDraw.major ? majorTickFontColor : tickFontColor;
                            context.textBaseline = itemToDraw.textBaseline;
                            context.textAlign = itemToDraw.textAlign;

                            var label = itemToDraw.label;
                            if (helpers.isArray(label)) {
                                var lineCount = label.length;
                                var lineHeight = tickFont.size * 1.5;
                                var y = me.isHorizontal() ? 0 : -lineHeight * (lineCount - 1) / 2;

                                for (var i = 0; i < lineCount; ++i) {
                                    // We just make sure the multiline element is a string here..
                                    context.fillText('' + label[i], 0, y);
                                    // apply same lineSpacing as calculated @ L#320
                                    y += lineHeight;
                                }
                            } else {
                                context.fillText(label, 0, 0);
                            }
                            context.restore();
                        }
                    });

                    if (scaleLabel.display) {
                        // Draw the scale label
                        var scaleLabelX;
                        var scaleLabelY;
                        var rotation = 0;
                        var halfLineHeight = parseLineHeight(scaleLabel) / 2;

                        if (isHorizontal) {
                            scaleLabelX = me.left + ((me.right - me.left) / 2); // midpoint of the width
                            scaleLabelY = options.position === 'bottom'
                                ? me.bottom - halfLineHeight - scaleLabelPadding.bottom
                                : me.top + halfLineHeight + scaleLabelPadding.top;
                        } else {
                            var isLeft = options.position === 'left';
                            scaleLabelX = isLeft
                                ? me.left + halfLineHeight + scaleLabelPadding.top
                                : me.right - halfLineHeight - scaleLabelPadding.top;
                            scaleLabelY = me.top + ((me.bottom - me.top) / 2);
                            rotation = isLeft ? -0.5 * Math.PI : 0.5 * Math.PI;
                        }

                        context.save();
                        context.translate(scaleLabelX, scaleLabelY);
                        context.rotate(rotation);
                        context.textAlign = 'center';
                        context.textBaseline = 'middle';
                        context.fillStyle = scaleLabelFontColor; // render in correct colour
                        context.font = scaleLabelFont.font;
                        context.fillText(scaleLabel.labelString, 0, 0);
                        context.restore();
                    }

                    if (gridLines.drawBorder) {
                        // Draw the line at the edge of the axis
                        context.lineWidth = helpers.valueAtIndexOrDefault(gridLines.lineWidth, 0);
                        context.strokeStyle = helpers.valueAtIndexOrDefault(gridLines.color, 0);
                        var x1 = me.left;
                        var x2 = me.right + axisWidth;
                        var y1 = me.top;
                        var y2 = me.bottom + axisWidth;

                        var aliasPixel = helpers.aliasPixel(context.lineWidth);
                        if (isHorizontal) {
                            y1 = y2 = options.position === 'top' ? me.bottom : me.top;
                            y1 += aliasPixel;
                            y2 += aliasPixel;
                        } else {
                            x1 = x2 = options.position === 'left' ? me.right : me.left;
                            x1 += aliasPixel;
                            x2 += aliasPixel;
                        }

                        context.beginPath();
                        context.moveTo(x1, y1);
                        context.lineTo(x2, y2);
                        context.stroke();
                    }
                }
            });
        };

    },{"25":25,"26":26,"34":34,"45":45}],33:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var helpers = require(45);
        var layouts = require(30);

        module.exports = function(Chart) {

            Chart.scaleService = {
                // Scale registration object. Extensions can register new scale types (such as log or DB scales) and then
                // use the new chart options to grab the correct scale
                constructors: {},
                // Use a registration function so that we can move to an ES6 map when we no longer need to support
                // old browsers

                // Scale config defaults
                defaults: {},
                registerScaleType: function(type, scaleConstructor, scaleDefaults) {
                    this.constructors[type] = scaleConstructor;
                    this.defaults[type] = helpers.clone(scaleDefaults);
                },
                getScaleConstructor: function(type) {
                    return this.constructors.hasOwnProperty(type) ? this.constructors[type] : undefined;
                },
                getScaleDefaults: function(type) {
                    // Return the scale defaults merged with the global settings so that we always use the latest ones
                    return this.defaults.hasOwnProperty(type) ? helpers.merge({}, [defaults.scale, this.defaults[type]]) : {};
                },
                updateScaleDefaults: function(type, additions) {
                    var me = this;
                    if (me.defaults.hasOwnProperty(type)) {
                        me.defaults[type] = helpers.extend(me.defaults[type], additions);
                    }
                },
                addScalesToLayout: function(chart) {
                    // Adds each scale to the chart.boxes array to be sized accordingly
                    helpers.each(chart.scales, function(scale) {
                        // Set ILayoutItem parameters for backwards compatibility
                        scale.fullWidth = scale.options.fullWidth;
                        scale.position = scale.options.position;
                        scale.weight = scale.options.weight;
                        layouts.addBox(chart, scale);
                    });
                }
            };
        };

    },{"25":25,"30":30,"45":45}],34:[function(require,module,exports){
        'use strict';

        var helpers = require(45);

        /**
         * Namespace to hold static tick generation functions
         * @namespace Chart.Ticks
         */
        module.exports = {
            /**
             * Namespace to hold formatters for different types of ticks
             * @namespace Chart.Ticks.formatters
             */
            formatters: {
                /**
                 * Formatter for value labels
                 * @method Chart.Ticks.formatters.values
                 * @param value the value to display
                 * @return {String|Array} the label to display
                 */
                values: function(value) {
                    return helpers.isArray(value) ? value : '' + value;
                },

                /**
                 * Formatter for linear numeric ticks
                 * @method Chart.Ticks.formatters.linear
                 * @param tickValue {Number} the value to be formatted
                 * @param index {Number} the position of the tickValue parameter in the ticks array
                 * @param ticks {Array<Number>} the list of ticks being converted
                 * @return {String} string representation of the tickValue parameter
                 */
                linear: function(tickValue, index, ticks) {
                    // If we have lots of ticks, don't use the ones
                    var delta = ticks.length > 3 ? ticks[2] - ticks[1] : ticks[1] - ticks[0];

                    // If we have a number like 2.5 as the delta, figure out how many decimal places we need
                    if (Math.abs(delta) > 1) {
                        if (tickValue !== Math.floor(tickValue)) {
                            // not an integer
                            delta = tickValue - Math.floor(tickValue);
                        }
                    }

                    var logDelta = helpers.log10(Math.abs(delta));
                    var tickString = '';

                    if (tickValue !== 0) {
                        var numDecimal = -1 * Math.floor(logDelta);
                        numDecimal = Math.max(Math.min(numDecimal, 20), 0); // toFixed has a max of 20 decimal places
                        tickString = tickValue.toFixed(numDecimal);
                    } else {
                        tickString = '0'; // never show decimal places for 0
                    }

                    return tickString;
                },

                logarithmic: function(tickValue, index, ticks) {
                    var remain = tickValue / (Math.pow(10, Math.floor(helpers.log10(tickValue))));

                    if (tickValue === 0) {
                        return '0';
                    } else if (remain === 1 || remain === 2 || remain === 5 || index === 0 || index === ticks.length - 1) {
                        return tickValue.toExponential();
                    }
                    return '';
                }
            }
        };

    },{"45":45}],35:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var Element = require(26);
        var helpers = require(45);

        defaults._set('global', {
            tooltips: {
                enabled: true,
                custom: null,
                mode: 'nearest',
                position: 'average',
                intersect: true,
                backgroundColor: 'rgba(0,0,0,0.8)',
                titleFontStyle: 'bold',
                titleSpacing: 2,
                titleMarginBottom: 6,
                titleFontColor: '#fff',
                titleAlign: 'left',
                bodySpacing: 2,
                bodyFontColor: '#fff',
                bodyAlign: 'left',
                footerFontStyle: 'bold',
                footerSpacing: 2,
                footerMarginTop: 6,
                footerFontColor: '#fff',
                footerAlign: 'left',
                yPadding: 6,
                xPadding: 6,
                caretPadding: 2,
                caretSize: 5,
                cornerRadius: 6,
                multiKeyBackground: '#fff',
                displayColors: true,
                borderColor: 'rgba(0,0,0,0)',
                borderWidth: 0,
                callbacks: {
                    // Args are: (tooltipItems, data)
                    beforeTitle: helpers.noop,
                    title: function(tooltipItems, data) {
                        // Pick first xLabel for now
                        var title = '';
                        var labels = data.labels;
                        var labelCount = labels ? labels.length : 0;

                        if (tooltipItems.length > 0) {
                            var item = tooltipItems[0];

                            if (item.xLabel) {
                                title = item.xLabel;
                            } else if (labelCount > 0 && item.index < labelCount) {
                                title = labels[item.index];
                            }
                        }

                        return title;
                    },
                    afterTitle: helpers.noop,

                    // Args are: (tooltipItems, data)
                    beforeBody: helpers.noop,

                    // Args are: (tooltipItem, data)
                    beforeLabel: helpers.noop,
                    label: function(tooltipItem, data) {
                        var label = data.datasets[tooltipItem.datasetIndex].label || '';

                        if (label) {
                            label += ': ';
                        }
                        label += tooltipItem.yLabel;
                        return label;
                    },
                    labelColor: function(tooltipItem, chart) {
                        var meta = chart.getDatasetMeta(tooltipItem.datasetIndex);
                        var activeElement = meta.data[tooltipItem.index];
                        var view = activeElement._view;
                        return {
                            borderColor: view.borderColor,
                            backgroundColor: view.backgroundColor
                        };
                    },
                    labelTextColor: function() {
                        return this._options.bodyFontColor;
                    },
                    afterLabel: helpers.noop,

                    // Args are: (tooltipItems, data)
                    afterBody: helpers.noop,

                    // Args are: (tooltipItems, data)
                    beforeFooter: helpers.noop,
                    footer: helpers.noop,
                    afterFooter: helpers.noop
                }
            }
        });

        module.exports = function(Chart) {

            /**
             * Helper method to merge the opacity into a color
             */
            function mergeOpacity(colorString, opacity) {
                var color = helpers.color(colorString);
                return color.alpha(opacity * color.alpha()).rgbaString();
            }

            // Helper to push or concat based on if the 2nd parameter is an array or not
            function pushOrConcat(base, toPush) {
                if (toPush) {
                    if (helpers.isArray(toPush)) {
                        // base = base.concat(toPush);
                        Array.prototype.push.apply(base, toPush);
                    } else {
                        base.push(toPush);
                    }
                }

                return base;
            }

            // Private helper to create a tooltip item model
            // @param element : the chart element (point, arc, bar) to create the tooltip item for
            // @return : new tooltip item
            function createTooltipItem(element) {
                var xScale = element._xScale;
                var yScale = element._yScale || element._scale; // handle radar || polarArea charts
                var index = element._index;
                var datasetIndex = element._datasetIndex;

                return {
                    xLabel: xScale ? xScale.getLabelForIndex(index, datasetIndex) : '',
                    yLabel: yScale ? yScale.getLabelForIndex(index, datasetIndex) : '',
                    index: index,
                    datasetIndex: datasetIndex,
                    x: element._model.x,
                    y: element._model.y
                };
            }

            /**
             * Helper to get the reset model for the tooltip
             * @param tooltipOpts {Object} the tooltip options
             */
            function getBaseModel(tooltipOpts) {
                var globalDefaults = defaults.global;
                var valueOrDefault = helpers.valueOrDefault;

                return {
                    // Positioning
                    xPadding: tooltipOpts.xPadding,
                    yPadding: tooltipOpts.yPadding,
                    xAlign: tooltipOpts.xAlign,
                    yAlign: tooltipOpts.yAlign,

                    // Body
                    bodyFontColor: tooltipOpts.bodyFontColor,
                    _bodyFontFamily: valueOrDefault(tooltipOpts.bodyFontFamily, globalDefaults.defaultFontFamily),
                    _bodyFontStyle: valueOrDefault(tooltipOpts.bodyFontStyle, globalDefaults.defaultFontStyle),
                    _bodyAlign: tooltipOpts.bodyAlign,
                    bodyFontSize: valueOrDefault(tooltipOpts.bodyFontSize, globalDefaults.defaultFontSize),
                    bodySpacing: tooltipOpts.bodySpacing,

                    // Title
                    titleFontColor: tooltipOpts.titleFontColor,
                    _titleFontFamily: valueOrDefault(tooltipOpts.titleFontFamily, globalDefaults.defaultFontFamily),
                    _titleFontStyle: valueOrDefault(tooltipOpts.titleFontStyle, globalDefaults.defaultFontStyle),
                    titleFontSize: valueOrDefault(tooltipOpts.titleFontSize, globalDefaults.defaultFontSize),
                    _titleAlign: tooltipOpts.titleAlign,
                    titleSpacing: tooltipOpts.titleSpacing,
                    titleMarginBottom: tooltipOpts.titleMarginBottom,

                    // Footer
                    footerFontColor: tooltipOpts.footerFontColor,
                    _footerFontFamily: valueOrDefault(tooltipOpts.footerFontFamily, globalDefaults.defaultFontFamily),
                    _footerFontStyle: valueOrDefault(tooltipOpts.footerFontStyle, globalDefaults.defaultFontStyle),
                    footerFontSize: valueOrDefault(tooltipOpts.footerFontSize, globalDefaults.defaultFontSize),
                    _footerAlign: tooltipOpts.footerAlign,
                    footerSpacing: tooltipOpts.footerSpacing,
                    footerMarginTop: tooltipOpts.footerMarginTop,

                    // Appearance
                    caretSize: tooltipOpts.caretSize,
                    cornerRadius: tooltipOpts.cornerRadius,
                    backgroundColor: tooltipOpts.backgroundColor,
                    opacity: 0,
                    legendColorBackground: tooltipOpts.multiKeyBackground,
                    displayColors: tooltipOpts.displayColors,
                    borderColor: tooltipOpts.borderColor,
                    borderWidth: tooltipOpts.borderWidth
                };
            }

            /**
             * Get the size of the tooltip
             */
            function getTooltipSize(tooltip, model) {
                var ctx = tooltip._chart.ctx;

                var height = model.yPadding * 2; // Tooltip Padding
                var width = 0;

                // Count of all lines in the body
                var body = model.body;
                var combinedBodyLength = body.reduce(function(count, bodyItem) {
                    return count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length;
                }, 0);
                combinedBodyLength += model.beforeBody.length + model.afterBody.length;

                var titleLineCount = model.title.length;
                var footerLineCount = model.footer.length;
                var titleFontSize = model.titleFontSize;
                var bodyFontSize = model.bodyFontSize;
                var footerFontSize = model.footerFontSize;

                height += titleLineCount * titleFontSize; // Title Lines
                height += titleLineCount ? (titleLineCount - 1) * model.titleSpacing : 0; // Title Line Spacing
                height += titleLineCount ? model.titleMarginBottom : 0; // Title's bottom Margin
                height += combinedBodyLength * bodyFontSize; // Body Lines
                height += combinedBodyLength ? (combinedBodyLength - 1) * model.bodySpacing : 0; // Body Line Spacing
                height += footerLineCount ? model.footerMarginTop : 0; // Footer Margin
                height += footerLineCount * (footerFontSize); // Footer Lines
                height += footerLineCount ? (footerLineCount - 1) * model.footerSpacing : 0; // Footer Line Spacing

                // Title width
                var widthPadding = 0;
                var maxLineWidth = function(line) {
                    width = Math.max(width, ctx.measureText(line).width + widthPadding);
                };

                ctx.font = helpers.fontString(titleFontSize, model._titleFontStyle, model._titleFontFamily);
                helpers.each(model.title, maxLineWidth);

                // Body width
                ctx.font = helpers.fontString(bodyFontSize, model._bodyFontStyle, model._bodyFontFamily);
                helpers.each(model.beforeBody.concat(model.afterBody), maxLineWidth);

                // Body lines may include some extra width due to the color box
                widthPadding = model.displayColors ? (bodyFontSize + 2) : 0;
                helpers.each(body, function(bodyItem) {
                    helpers.each(bodyItem.before, maxLineWidth);
                    helpers.each(bodyItem.lines, maxLineWidth);
                    helpers.each(bodyItem.after, maxLineWidth);
                });

                // Reset back to 0
                widthPadding = 0;

                // Footer width
                ctx.font = helpers.fontString(footerFontSize, model._footerFontStyle, model._footerFontFamily);
                helpers.each(model.footer, maxLineWidth);

                // Add padding
                width += 2 * model.xPadding;

                return {
                    width: width,
                    height: height
                };
            }

            /**
             * Helper to get the alignment of a tooltip given the size
             */
            function determineAlignment(tooltip, size) {
                var model = tooltip._model;
                var chart = tooltip._chart;
                var chartArea = tooltip._chart.chartArea;
                var xAlign = 'center';
                var yAlign = 'center';

                if (model.y < size.height) {
                    yAlign = 'top';
                } else if (model.y > (chart.height - size.height)) {
                    yAlign = 'bottom';
                }

                var lf, rf; // functions to determine left, right alignment
                var olf, orf; // functions to determine if left/right alignment causes tooltip to go outside chart
                var yf; // function to get the y alignment if the tooltip goes outside of the left or right edges
                var midX = (chartArea.left + chartArea.right) / 2;
                var midY = (chartArea.top + chartArea.bottom) / 2;

                if (yAlign === 'center') {
                    lf = function(x) {
                        return x <= midX;
                    };
                    rf = function(x) {
                        return x > midX;
                    };
                } else {
                    lf = function(x) {
                        return x <= (size.width / 2);
                    };
                    rf = function(x) {
                        return x >= (chart.width - (size.width / 2));
                    };
                }

                olf = function(x) {
                    return x + size.width + model.caretSize + model.caretPadding > chart.width;
                };
                orf = function(x) {
                    return x - size.width - model.caretSize - model.caretPadding < 0;
                };
                yf = function(y) {
                    return y <= midY ? 'top' : 'bottom';
                };

                if (lf(model.x)) {
                    xAlign = 'left';

                    // Is tooltip too wide and goes over the right side of the chart.?
                    if (olf(model.x)) {
                        xAlign = 'center';
                        yAlign = yf(model.y);
                    }
                } else if (rf(model.x)) {
                    xAlign = 'right';

                    // Is tooltip too wide and goes outside left edge of canvas?
                    if (orf(model.x)) {
                        xAlign = 'center';
                        yAlign = yf(model.y);
                    }
                }

                var opts = tooltip._options;
                return {
                    xAlign: opts.xAlign ? opts.xAlign : xAlign,
                    yAlign: opts.yAlign ? opts.yAlign : yAlign
                };
            }

            /**
             * @Helper to get the location a tooltip needs to be placed at given the initial position (via the vm) and the size and alignment
             */
            function getBackgroundPoint(vm, size, alignment, chart) {
                // Background Position
                var x = vm.x;
                var y = vm.y;

                var caretSize = vm.caretSize;
                var caretPadding = vm.caretPadding;
                var cornerRadius = vm.cornerRadius;
                var xAlign = alignment.xAlign;
                var yAlign = alignment.yAlign;
                var paddingAndSize = caretSize + caretPadding;
                var radiusAndPadding = cornerRadius + caretPadding;

                if (xAlign === 'right') {
                    x -= size.width;
                } else if (xAlign === 'center') {
                    x -= (size.width / 2);
                    if (x + size.width > chart.width) {
                        x = chart.width - size.width;
                    }
                    if (x < 0) {
                        x = 0;
                    }
                }

                if (yAlign === 'top') {
                    y += paddingAndSize;
                } else if (yAlign === 'bottom') {
                    y -= size.height + paddingAndSize;
                } else {
                    y -= (size.height / 2);
                }

                if (yAlign === 'center') {
                    if (xAlign === 'left') {
                        x += paddingAndSize;
                    } else if (xAlign === 'right') {
                        x -= paddingAndSize;
                    }
                } else if (xAlign === 'left') {
                    x -= radiusAndPadding;
                } else if (xAlign === 'right') {
                    x += radiusAndPadding;
                }

                return {
                    x: x,
                    y: y
                };
            }

            Chart.Tooltip = Element.extend({
                initialize: function() {
                    this._model = getBaseModel(this._options);
                    this._lastActive = [];
                },

                // Get the title
                // Args are: (tooltipItem, data)
                getTitle: function() {
                    var me = this;
                    var opts = me._options;
                    var callbacks = opts.callbacks;

                    var beforeTitle = callbacks.beforeTitle.apply(me, arguments);
                    var title = callbacks.title.apply(me, arguments);
                    var afterTitle = callbacks.afterTitle.apply(me, arguments);

                    var lines = [];
                    lines = pushOrConcat(lines, beforeTitle);
                    lines = pushOrConcat(lines, title);
                    lines = pushOrConcat(lines, afterTitle);

                    return lines;
                },

                // Args are: (tooltipItem, data)
                getBeforeBody: function() {
                    var lines = this._options.callbacks.beforeBody.apply(this, arguments);
                    return helpers.isArray(lines) ? lines : lines !== undefined ? [lines] : [];
                },

                // Args are: (tooltipItem, data)
                getBody: function(tooltipItems, data) {
                    var me = this;
                    var callbacks = me._options.callbacks;
                    var bodyItems = [];

                    helpers.each(tooltipItems, function(tooltipItem) {
                        var bodyItem = {
                            before: [],
                            lines: [],
                            after: []
                        };
                        pushOrConcat(bodyItem.before, callbacks.beforeLabel.call(me, tooltipItem, data));
                        pushOrConcat(bodyItem.lines, callbacks.label.call(me, tooltipItem, data));
                        pushOrConcat(bodyItem.after, callbacks.afterLabel.call(me, tooltipItem, data));

                        bodyItems.push(bodyItem);
                    });

                    return bodyItems;
                },

                // Args are: (tooltipItem, data)
                getAfterBody: function() {
                    var lines = this._options.callbacks.afterBody.apply(this, arguments);
                    return helpers.isArray(lines) ? lines : lines !== undefined ? [lines] : [];
                },

                // Get the footer and beforeFooter and afterFooter lines
                // Args are: (tooltipItem, data)
                getFooter: function() {
                    var me = this;
                    var callbacks = me._options.callbacks;

                    var beforeFooter = callbacks.beforeFooter.apply(me, arguments);
                    var footer = callbacks.footer.apply(me, arguments);
                    var afterFooter = callbacks.afterFooter.apply(me, arguments);

                    var lines = [];
                    lines = pushOrConcat(lines, beforeFooter);
                    lines = pushOrConcat(lines, footer);
                    lines = pushOrConcat(lines, afterFooter);

                    return lines;
                },

                update: function(changed) {
                    var me = this;
                    var opts = me._options;

                    // Need to regenerate the model because its faster than using extend and it is necessary due to the optimization in Chart.Element.transition
                    // that does _view = _model if ease === 1. This causes the 2nd tooltip update to set properties in both the view and model at the same time
                    // which breaks any animations.
                    var existingModel = me._model;
                    var model = me._model = getBaseModel(opts);
                    var active = me._active;

                    var data = me._data;

                    // In the case where active.length === 0 we need to keep these at existing values for good animations
                    var alignment = {
                        xAlign: existingModel.xAlign,
                        yAlign: existingModel.yAlign
                    };
                    var backgroundPoint = {
                        x: existingModel.x,
                        y: existingModel.y
                    };
                    var tooltipSize = {
                        width: existingModel.width,
                        height: existingModel.height
                    };
                    var tooltipPosition = {
                        x: existingModel.caretX,
                        y: existingModel.caretY
                    };

                    var i, len;

                    if (active.length) {
                        model.opacity = 1;

                        var labelColors = [];
                        var labelTextColors = [];
                        tooltipPosition = Chart.Tooltip.positioners[opts.position].call(me, active, me._eventPosition);

                        var tooltipItems = [];
                        for (i = 0, len = active.length; i < len; ++i) {
                            tooltipItems.push(createTooltipItem(active[i]));
                        }

                        // If the user provided a filter function, use it to modify the tooltip items
                        if (opts.filter) {
                            tooltipItems = tooltipItems.filter(function(a) {
                                return opts.filter(a, data);
                            });
                        }

                        // If the user provided a sorting function, use it to modify the tooltip items
                        if (opts.itemSort) {
                            tooltipItems = tooltipItems.sort(function(a, b) {
                                return opts.itemSort(a, b, data);
                            });
                        }

                        // Determine colors for boxes
                        helpers.each(tooltipItems, function(tooltipItem) {
                            labelColors.push(opts.callbacks.labelColor.call(me, tooltipItem, me._chart));
                            labelTextColors.push(opts.callbacks.labelTextColor.call(me, tooltipItem, me._chart));
                        });


                        // Build the Text Lines
                        model.title = me.getTitle(tooltipItems, data);
                        model.beforeBody = me.getBeforeBody(tooltipItems, data);
                        model.body = me.getBody(tooltipItems, data);
                        model.afterBody = me.getAfterBody(tooltipItems, data);
                        model.footer = me.getFooter(tooltipItems, data);

                        // Initial positioning and colors
                        model.x = Math.round(tooltipPosition.x);
                        model.y = Math.round(tooltipPosition.y);
                        model.caretPadding = opts.caretPadding;
                        model.labelColors = labelColors;
                        model.labelTextColors = labelTextColors;

                        // data points
                        model.dataPoints = tooltipItems;

                        // We need to determine alignment of the tooltip
                        tooltipSize = getTooltipSize(this, model);
                        alignment = determineAlignment(this, tooltipSize);
                        // Final Size and Position
                        backgroundPoint = getBackgroundPoint(model, tooltipSize, alignment, me._chart);
                    } else {
                        model.opacity = 0;
                    }

                    model.xAlign = alignment.xAlign;
                    model.yAlign = alignment.yAlign;
                    model.x = backgroundPoint.x;
                    model.y = backgroundPoint.y;
                    model.width = tooltipSize.width;
                    model.height = tooltipSize.height;

                    // Point where the caret on the tooltip points to
                    model.caretX = tooltipPosition.x;
                    model.caretY = tooltipPosition.y;

                    me._model = model;

                    if (changed && opts.custom) {
                        opts.custom.call(me, model);
                    }

                    return me;
                },
                drawCaret: function(tooltipPoint, size) {
                    var ctx = this._chart.ctx;
                    var vm = this._view;
                    var caretPosition = this.getCaretPosition(tooltipPoint, size, vm);

                    ctx.lineTo(caretPosition.x1, caretPosition.y1);
                    ctx.lineTo(caretPosition.x2, caretPosition.y2);
                    ctx.lineTo(caretPosition.x3, caretPosition.y3);
                },
                getCaretPosition: function(tooltipPoint, size, vm) {
                    var x1, x2, x3, y1, y2, y3;
                    var caretSize = vm.caretSize;
                    var cornerRadius = vm.cornerRadius;
                    var xAlign = vm.xAlign;
                    var yAlign = vm.yAlign;
                    var ptX = tooltipPoint.x;
                    var ptY = tooltipPoint.y;
                    var width = size.width;
                    var height = size.height;

                    if (yAlign === 'center') {
                        y2 = ptY + (height / 2);

                        if (xAlign === 'left') {
                            x1 = ptX;
                            x2 = x1 - caretSize;
                            x3 = x1;

                            y1 = y2 + caretSize;
                            y3 = y2 - caretSize;
                        } else {
                            x1 = ptX + width;
                            x2 = x1 + caretSize;
                            x3 = x1;

                            y1 = y2 - caretSize;
                            y3 = y2 + caretSize;
                        }
                    } else {
                        if (xAlign === 'left') {
                            x2 = ptX + cornerRadius + (caretSize);
                            x1 = x2 - caretSize;
                            x3 = x2 + caretSize;
                        } else if (xAlign === 'right') {
                            x2 = ptX + width - cornerRadius - caretSize;
                            x1 = x2 - caretSize;
                            x3 = x2 + caretSize;
                        } else {
                            x2 = vm.caretX;
                            x1 = x2 - caretSize;
                            x3 = x2 + caretSize;
                        }
                        if (yAlign === 'top') {
                            y1 = ptY;
                            y2 = y1 - caretSize;
                            y3 = y1;
                        } else {
                            y1 = ptY + height;
                            y2 = y1 + caretSize;
                            y3 = y1;
                            // invert drawing order
                            var tmp = x3;
                            x3 = x1;
                            x1 = tmp;
                        }
                    }
                    return {x1: x1, x2: x2, x3: x3, y1: y1, y2: y2, y3: y3};
                },
                drawTitle: function(pt, vm, ctx, opacity) {
                    var title = vm.title;

                    if (title.length) {
                        ctx.textAlign = vm._titleAlign;
                        ctx.textBaseline = 'top';

                        var titleFontSize = vm.titleFontSize;
                        var titleSpacing = vm.titleSpacing;

                        ctx.fillStyle = mergeOpacity(vm.titleFontColor, opacity);
                        ctx.font = helpers.fontString(titleFontSize, vm._titleFontStyle, vm._titleFontFamily);

                        var i, len;
                        for (i = 0, len = title.length; i < len; ++i) {
                            ctx.fillText(title[i], pt.x, pt.y);
                            pt.y += titleFontSize + titleSpacing; // Line Height and spacing

                            if (i + 1 === title.length) {
                                pt.y += vm.titleMarginBottom - titleSpacing; // If Last, add margin, remove spacing
                            }
                        }
                    }
                },
                drawBody: function(pt, vm, ctx, opacity) {
                    var bodyFontSize = vm.bodyFontSize;
                    var bodySpacing = vm.bodySpacing;
                    var body = vm.body;

                    ctx.textAlign = vm._bodyAlign;
                    ctx.textBaseline = 'top';
                    ctx.font = helpers.fontString(bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily);

                    // Before Body
                    var xLinePadding = 0;
                    var fillLineOfText = function(line) {
                        ctx.fillText(line, pt.x + xLinePadding, pt.y);
                        pt.y += bodyFontSize + bodySpacing;
                    };

                    // Before body lines
                    ctx.fillStyle = mergeOpacity(vm.bodyFontColor, opacity);
                    helpers.each(vm.beforeBody, fillLineOfText);

                    var drawColorBoxes = vm.displayColors;
                    xLinePadding = drawColorBoxes ? (bodyFontSize + 2) : 0;

                    // Draw body lines now
                    helpers.each(body, function(bodyItem, i) {
                        var textColor = mergeOpacity(vm.labelTextColors[i], opacity);
                        ctx.fillStyle = textColor;
                        helpers.each(bodyItem.before, fillLineOfText);

                        helpers.each(bodyItem.lines, function(line) {
                            // Draw Legend-like boxes if needed
                            if (drawColorBoxes) {
                                // Fill a white rect so that colours merge nicely if the opacity is < 1
                                ctx.fillStyle = mergeOpacity(vm.legendColorBackground, opacity);
                                ctx.fillRect(pt.x, pt.y, bodyFontSize, bodyFontSize);

                                // Border
                                ctx.lineWidth = 1;
                                ctx.strokeStyle = mergeOpacity(vm.labelColors[i].borderColor, opacity);
                                ctx.strokeRect(pt.x, pt.y, bodyFontSize, bodyFontSize);

                                // Inner square
                                ctx.fillStyle = mergeOpacity(vm.labelColors[i].backgroundColor, opacity);
                                ctx.fillRect(pt.x + 1, pt.y + 1, bodyFontSize - 2, bodyFontSize - 2);
                                ctx.fillStyle = textColor;
                            }

                            fillLineOfText(line);
                        });

                        helpers.each(bodyItem.after, fillLineOfText);
                    });

                    // Reset back to 0 for after body
                    xLinePadding = 0;

                    // After body lines
                    helpers.each(vm.afterBody, fillLineOfText);
                    pt.y -= bodySpacing; // Remove last body spacing
                },
                drawFooter: function(pt, vm, ctx, opacity) {
                    var footer = vm.footer;

                    if (footer.length) {
                        pt.y += vm.footerMarginTop;

                        ctx.textAlign = vm._footerAlign;
                        ctx.textBaseline = 'top';

                        ctx.fillStyle = mergeOpacity(vm.footerFontColor, opacity);
                        ctx.font = helpers.fontString(vm.footerFontSize, vm._footerFontStyle, vm._footerFontFamily);

                        helpers.each(footer, function(line) {
                            ctx.fillText(line, pt.x, pt.y);
                            pt.y += vm.footerFontSize + vm.footerSpacing;
                        });
                    }
                },
                drawBackground: function(pt, vm, ctx, tooltipSize, opacity) {
                    ctx.fillStyle = mergeOpacity(vm.backgroundColor, opacity);
                    ctx.strokeStyle = mergeOpacity(vm.borderColor, opacity);
                    ctx.lineWidth = vm.borderWidth;
                    var xAlign = vm.xAlign;
                    var yAlign = vm.yAlign;
                    var x = pt.x;
                    var y = pt.y;
                    var width = tooltipSize.width;
                    var height = tooltipSize.height;
                    var radius = vm.cornerRadius;

                    ctx.beginPath();
                    ctx.moveTo(x + radius, y);
                    if (yAlign === 'top') {
                        this.drawCaret(pt, tooltipSize);
                    }
                    ctx.lineTo(x + width - radius, y);
                    ctx.quadraticCurveTo(x + width, y, x + width, y + radius);
                    if (yAlign === 'center' && xAlign === 'right') {
                        this.drawCaret(pt, tooltipSize);
                    }
                    ctx.lineTo(x + width, y + height - radius);
                    ctx.quadraticCurveTo(x + width, y + height, x + width - radius, y + height);
                    if (yAlign === 'bottom') {
                        this.drawCaret(pt, tooltipSize);
                    }
                    ctx.lineTo(x + radius, y + height);
                    ctx.quadraticCurveTo(x, y + height, x, y + height - radius);
                    if (yAlign === 'center' && xAlign === 'left') {
                        this.drawCaret(pt, tooltipSize);
                    }
                    ctx.lineTo(x, y + radius);
                    ctx.quadraticCurveTo(x, y, x + radius, y);
                    ctx.closePath();

                    ctx.fill();

                    if (vm.borderWidth > 0) {
                        ctx.stroke();
                    }
                },
                draw: function() {
                    var ctx = this._chart.ctx;
                    var vm = this._view;

                    if (vm.opacity === 0) {
                        return;
                    }

                    var tooltipSize = {
                        width: vm.width,
                        height: vm.height
                    };
                    var pt = {
                        x: vm.x,
                        y: vm.y
                    };

                    // IE11/Edge does not like very small opacities, so snap to 0
                    var opacity = Math.abs(vm.opacity < 1e-3) ? 0 : vm.opacity;

                    // Truthy/falsey value for empty tooltip
                    var hasTooltipContent = vm.title.length || vm.beforeBody.length || vm.body.length || vm.afterBody.length || vm.footer.length;

                    if (this._options.enabled && hasTooltipContent) {
                        // Draw Background
                        this.drawBackground(pt, vm, ctx, tooltipSize, opacity);

                        // Draw Title, Body, and Footer
                        pt.x += vm.xPadding;
                        pt.y += vm.yPadding;

                        // Titles
                        this.drawTitle(pt, vm, ctx, opacity);

                        // Body
                        this.drawBody(pt, vm, ctx, opacity);

                        // Footer
                        this.drawFooter(pt, vm, ctx, opacity);
                    }
                },

                /**
                 * Handle an event
                 * @private
                 * @param {IEvent} event - The event to handle
                 * @returns {Boolean} true if the tooltip changed
                 */
                handleEvent: function(e) {
                    var me = this;
                    var options = me._options;
                    var changed = false;

                    me._lastActive = me._lastActive || [];

                    // Find Active Elements for tooltips
                    if (e.type === 'mouseout') {
                        me._active = [];
                    } else {
                        me._active = me._chart.getElementsAtEventForMode(e, options.mode, options);
                    }

                    // Remember Last Actives
                    changed = !helpers.arrayEquals(me._active, me._lastActive);

                    // Only handle target event on tooltip change
                    if (changed) {
                        me._lastActive = me._active;

                        if (options.enabled || options.custom) {
                            me._eventPosition = {
                                x: e.x,
                                y: e.y
                            };

                            me.update(true);
                            me.pivot();
                        }
                    }

                    return changed;
                }
            });

            /**
             * @namespace Chart.Tooltip.positioners
             */
            Chart.Tooltip.positioners = {
                /**
                 * Average mode places the tooltip at the average position of the elements shown
                 * @function Chart.Tooltip.positioners.average
                 * @param elements {ChartElement[]} the elements being displayed in the tooltip
                 * @returns {Point} tooltip position
                 */
                average: function(elements) {
                    if (!elements.length) {
                        return false;
                    }

                    var i, len;
                    var x = 0;
                    var y = 0;
                    var count = 0;

                    for (i = 0, len = elements.length; i < len; ++i) {
                        var el = elements[i];
                        if (el && el.hasValue()) {
                            var pos = el.tooltipPosition();
                            x += pos.x;
                            y += pos.y;
                            ++count;
                        }
                    }

                    return {
                        x: Math.round(x / count),
                        y: Math.round(y / count)
                    };
                },

                /**
                 * Gets the tooltip position nearest of the item nearest to the event position
                 * @function Chart.Tooltip.positioners.nearest
                 * @param elements {Chart.Element[]} the tooltip elements
                 * @param eventPosition {Point} the position of the event in canvas coordinates
                 * @returns {Point} the tooltip position
                 */
                nearest: function(elements, eventPosition) {
                    var x = eventPosition.x;
                    var y = eventPosition.y;
                    var minDistance = Number.POSITIVE_INFINITY;
                    var i, len, nearestElement;

                    for (i = 0, len = elements.length; i < len; ++i) {
                        var el = elements[i];
                        if (el && el.hasValue()) {
                            var center = el.getCenterPoint();
                            var d = helpers.distanceBetweenPoints(eventPosition, center);

                            if (d < minDistance) {
                                minDistance = d;
                                nearestElement = el;
                            }
                        }
                    }

                    if (nearestElement) {
                        var tp = nearestElement.tooltipPosition();
                        x = tp.x;
                        y = tp.y;
                    }

                    return {
                        x: x,
                        y: y
                    };
                }
            };
        };

    },{"25":25,"26":26,"45":45}],36:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var Element = require(26);
        var helpers = require(45);

        defaults._set('global', {
            elements: {
                arc: {
                    backgroundColor: defaults.global.defaultColor,
                    borderColor: '#fff',
                    borderWidth: 2
                }
            }
        });

        module.exports = Element.extend({
            inLabelRange: function(mouseX) {
                var vm = this._view;

                if (vm) {
                    return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2));
                }
                return false;
            },

            inRange: function(chartX, chartY) {
                var vm = this._view;

                if (vm) {
                    var pointRelativePosition = helpers.getAngleFromPoint(vm, {x: chartX, y: chartY});
                    var	angle = pointRelativePosition.angle;
                    var distance = pointRelativePosition.distance;

                    // Sanitise angle range
                    var startAngle = vm.startAngle;
                    var endAngle = vm.endAngle;
                    while (endAngle < startAngle) {
                        endAngle += 2.0 * Math.PI;
                    }
                    while (angle > endAngle) {
                        angle -= 2.0 * Math.PI;
                    }
                    while (angle < startAngle) {
                        angle += 2.0 * Math.PI;
                    }

                    // Check if within the range of the open/close angle
                    var betweenAngles = (angle >= startAngle && angle <= endAngle);
                    var withinRadius = (distance >= vm.innerRadius && distance <= vm.outerRadius);

                    return (betweenAngles && withinRadius);
                }
                return false;
            },

            getCenterPoint: function() {
                var vm = this._view;
                var halfAngle = (vm.startAngle + vm.endAngle) / 2;
                var halfRadius = (vm.innerRadius + vm.outerRadius) / 2;
                return {
                    x: vm.x + Math.cos(halfAngle) * halfRadius,
                    y: vm.y + Math.sin(halfAngle) * halfRadius
                };
            },

            getArea: function() {
                var vm = this._view;
                return Math.PI * ((vm.endAngle - vm.startAngle) / (2 * Math.PI)) * (Math.pow(vm.outerRadius, 2) - Math.pow(vm.innerRadius, 2));
            },

            tooltipPosition: function() {
                var vm = this._view;
                var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2);
                var rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius;

                return {
                    x: vm.x + (Math.cos(centreAngle) * rangeFromCentre),
                    y: vm.y + (Math.sin(centreAngle) * rangeFromCentre)
                };
            },

            draw: function() {
                var ctx = this._chart.ctx;
                var vm = this._view;
                var sA = vm.startAngle;
                var eA = vm.endAngle;

                ctx.beginPath();

                ctx.arc(vm.x, vm.y, vm.outerRadius, sA, eA);
                ctx.arc(vm.x, vm.y, vm.innerRadius, eA, sA, true);

                ctx.closePath();
                ctx.strokeStyle = vm.borderColor;
                ctx.lineWidth = vm.borderWidth;

                ctx.fillStyle = vm.backgroundColor;

                ctx.fill();
                ctx.lineJoin = 'bevel';

                if (vm.borderWidth) {
                    ctx.stroke();
                }
            }
        });

    },{"25":25,"26":26,"45":45}],37:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var Element = require(26);
        var helpers = require(45);

        var globalDefaults = defaults.global;

        defaults._set('global', {
            elements: {
                line: {
                    tension: 0.4,
                    backgroundColor: globalDefaults.defaultColor,
                    borderWidth: 3,
                    borderColor: globalDefaults.defaultColor,
                    borderCapStyle: 'butt',
                    borderDash: [],
                    borderDashOffset: 0.0,
                    borderJoinStyle: 'miter',
                    capBezierPoints: true,
                    fill: true, // do we fill in the area between the line and its base axis
                }
            }
        });

        module.exports = Element.extend({
            draw: function() {
                var me = this;
                var vm = me._view;
                var ctx = me._chart.ctx;
                var spanGaps = vm.spanGaps;
                var points = me._children.slice(); // clone array
                var globalOptionLineElements = globalDefaults.elements.line;
                var lastDrawnIndex = -1;
                var index, current, previous, currentVM;

                // If we are looping, adding the first point again
                if (me._loop && points.length) {
                    points.push(points[0]);
                }

                ctx.save();

                // Stroke Line Options
                ctx.lineCap = vm.borderCapStyle || globalOptionLineElements.borderCapStyle;

                // IE 9 and 10 do not support line dash
                if (ctx.setLineDash) {
                    ctx.setLineDash(vm.borderDash || globalOptionLineElements.borderDash);
                }

                ctx.lineDashOffset = vm.borderDashOffset || globalOptionLineElements.borderDashOffset;
                ctx.lineJoin = vm.borderJoinStyle || globalOptionLineElements.borderJoinStyle;
                ctx.lineWidth = vm.borderWidth || globalOptionLineElements.borderWidth;
                ctx.strokeStyle = vm.borderColor || globalDefaults.defaultColor;

                // Stroke Line
                ctx.beginPath();
                lastDrawnIndex = -1;

                for (index = 0; index < points.length; ++index) {
                    current = points[index];
                    previous = helpers.previousItem(points, index);
                    currentVM = current._view;

                    // First point moves to it's starting position no matter what
                    if (index === 0) {
                        if (!currentVM.skip) {
                            ctx.moveTo(currentVM.x, currentVM.y);
                            lastDrawnIndex = index;
                        }
                    } else {
                        previous = lastDrawnIndex === -1 ? previous : points[lastDrawnIndex];

                        if (!currentVM.skip) {
                            if ((lastDrawnIndex !== (index - 1) && !spanGaps) || lastDrawnIndex === -1) {
                                // There was a gap and this is the first point after the gap
                                ctx.moveTo(currentVM.x, currentVM.y);
                            } else {
                                // Line to next point
                                helpers.canvas.lineTo(ctx, previous._view, current._view);
                            }
                            lastDrawnIndex = index;
                        }
                    }
                }

                ctx.stroke();
                ctx.restore();
            }
        });

    },{"25":25,"26":26,"45":45}],38:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var Element = require(26);
        var helpers = require(45);

        var defaultColor = defaults.global.defaultColor;

        defaults._set('global', {
            elements: {
                point: {
                    radius: 3,
                    pointStyle: 'circle',
                    backgroundColor: defaultColor,
                    borderColor: defaultColor,
                    borderWidth: 1,
                    // Hover
                    hitRadius: 1,
                    hoverRadius: 4,
                    hoverBorderWidth: 1
                }
            }
        });

        function xRange(mouseX) {
            var vm = this._view;
            return vm ? (Math.abs(mouseX - vm.x) < vm.radius + vm.hitRadius) : false;
        }

        function yRange(mouseY) {
            var vm = this._view;
            return vm ? (Math.abs(mouseY - vm.y) < vm.radius + vm.hitRadius) : false;
        }

        module.exports = Element.extend({
            inRange: function(mouseX, mouseY) {
                var vm = this._view;
                return vm ? ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(vm.hitRadius + vm.radius, 2)) : false;
            },

            inLabelRange: xRange,
            inXRange: xRange,
            inYRange: yRange,

            getCenterPoint: function() {
                var vm = this._view;
                return {
                    x: vm.x,
                    y: vm.y
                };
            },

            getArea: function() {
                return Math.PI * Math.pow(this._view.radius, 2);
            },

            tooltipPosition: function() {
                var vm = this._view;
                return {
                    x: vm.x,
                    y: vm.y,
                    padding: vm.radius + vm.borderWidth
                };
            },

            draw: function(chartArea) {
                var vm = this._view;
                var model = this._model;
                var ctx = this._chart.ctx;
                var pointStyle = vm.pointStyle;
                var radius = vm.radius;
                var x = vm.x;
                var y = vm.y;
                var color = helpers.color;
                var errMargin = 1.01; // 1.01 is margin for Accumulated error. (Especially Edge, IE.)
                var ratio = 0;

                if (vm.skip) {
                    return;
                }

                ctx.strokeStyle = vm.borderColor || defaultColor;
                ctx.lineWidth = helpers.valueOrDefault(vm.borderWidth, defaults.global.elements.point.borderWidth);
                ctx.fillStyle = vm.backgroundColor || defaultColor;

                // Cliping for Points.
                // going out from inner charArea?
                if ((chartArea !== undefined) && ((model.x < chartArea.left) || (chartArea.right * errMargin < model.x) || (model.y < chartArea.top) || (chartArea.bottom * errMargin < model.y))) {
                    // Point fade out
                    if (model.x < chartArea.left) {
                        ratio = (x - model.x) / (chartArea.left - model.x);
                    } else if (chartArea.right * errMargin < model.x) {
                        ratio = (model.x - x) / (model.x - chartArea.right);
                    } else if (model.y < chartArea.top) {
                        ratio = (y - model.y) / (chartArea.top - model.y);
                    } else if (chartArea.bottom * errMargin < model.y) {
                        ratio = (model.y - y) / (model.y - chartArea.bottom);
                    }
                    ratio = Math.round(ratio * 100) / 100;
                    ctx.strokeStyle = color(ctx.strokeStyle).alpha(ratio).rgbString();
                    ctx.fillStyle = color(ctx.fillStyle).alpha(ratio).rgbString();
                }

                helpers.canvas.drawPoint(ctx, pointStyle, radius, x, y);
            }
        });

    },{"25":25,"26":26,"45":45}],39:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var Element = require(26);

        defaults._set('global', {
            elements: {
                rectangle: {
                    backgroundColor: defaults.global.defaultColor,
                    borderColor: defaults.global.defaultColor,
                    borderSkipped: 'bottom',
                    borderWidth: 0
                }
            }
        });

        function isVertical(bar) {
            return bar._view.width !== undefined;
        }

        /**
         * Helper function to get the bounds of the bar regardless of the orientation
         * @param bar {Chart.Element.Rectangle} the bar
         * @return {Bounds} bounds of the bar
         * @private
         */
        function getBarBounds(bar) {
            var vm = bar._view;
            var x1, x2, y1, y2;

            if (isVertical(bar)) {
                // vertical
                var halfWidth = vm.width / 2;
                x1 = vm.x - halfWidth;
                x2 = vm.x + halfWidth;
                y1 = Math.min(vm.y, vm.base);
                y2 = Math.max(vm.y, vm.base);
            } else {
                // horizontal bar
                var halfHeight = vm.height / 2;
                x1 = Math.min(vm.x, vm.base);
                x2 = Math.max(vm.x, vm.base);
                y1 = vm.y - halfHeight;
                y2 = vm.y + halfHeight;
            }

            return {
                left: x1,
                top: y1,
                right: x2,
                bottom: y2
            };
        }

        module.exports = Element.extend({
            draw: function() {
                var ctx = this._chart.ctx;
                var vm = this._view;
                var left, right, top, bottom, signX, signY, borderSkipped;
                var borderWidth = vm.borderWidth;

                if (!vm.horizontal) {
                    // bar
                    left = vm.x - vm.width / 2;
                    right = vm.x + vm.width / 2;
                    top = vm.y;
                    bottom = vm.base;
                    signX = 1;
                    signY = bottom > top ? 1 : -1;
                    borderSkipped = vm.borderSkipped || 'bottom';
                } else {
                    // horizontal bar
                    left = vm.base;
                    right = vm.x;
                    top = vm.y - vm.height / 2;
                    bottom = vm.y + vm.height / 2;
                    signX = right > left ? 1 : -1;
                    signY = 1;
                    borderSkipped = vm.borderSkipped || 'left';
                }

                // Canvas doesn't allow us to stroke inside the width so we can
                // adjust the sizes to fit if we're setting a stroke on the line
                if (borderWidth) {
                    // borderWidth shold be less than bar width and bar height.
                    var barSize = Math.min(Math.abs(left - right), Math.abs(top - bottom));
                    borderWidth = borderWidth > barSize ? barSize : borderWidth;
                    var halfStroke = borderWidth / 2;
                    // Adjust borderWidth when bar top position is near vm.base(zero).
                    var borderLeft = left + (borderSkipped !== 'left' ? halfStroke * signX : 0);
                    var borderRight = right + (borderSkipped !== 'right' ? -halfStroke * signX : 0);
                    var borderTop = top + (borderSkipped !== 'top' ? halfStroke * signY : 0);
                    var borderBottom = bottom + (borderSkipped !== 'bottom' ? -halfStroke * signY : 0);
                    // not become a vertical line?
                    if (borderLeft !== borderRight) {
                        top = borderTop;
                        bottom = borderBottom;
                    }
                    // not become a horizontal line?
                    if (borderTop !== borderBottom) {
                        left = borderLeft;
                        right = borderRight;
                    }
                }

                ctx.beginPath();
                ctx.fillStyle = vm.backgroundColor;
                ctx.strokeStyle = vm.borderColor;
                ctx.lineWidth = borderWidth;

                // Corner points, from bottom-left to bottom-right clockwise
                // | 1 2 |
                // | 0 3 |
                var corners = [
                    [left, bottom],
                    [left, top],
                    [right, top],
                    [right, bottom]
                ];

                // Find first (starting) corner with fallback to 'bottom'
                var borders = ['bottom', 'left', 'top', 'right'];
                var startCorner = borders.indexOf(borderSkipped, 0);
                if (startCorner === -1) {
                    startCorner = 0;
                }

                function cornerAt(index) {
                    return corners[(startCorner + index) % 4];
                }

                // Draw rectangle from 'startCorner'
                var corner = cornerAt(0);
                ctx.moveTo(corner[0], corner[1]);

                for (var i = 1; i < 4; i++) {
                    corner = cornerAt(i);
                    ctx.lineTo(corner[0], corner[1]);
                }

                ctx.fill();
                if (borderWidth) {
                    ctx.stroke();
                }
            },

            height: function() {
                var vm = this._view;
                return vm.base - vm.y;
            },

            inRange: function(mouseX, mouseY) {
                var inRange = false;

                if (this._view) {
                    var bounds = getBarBounds(this);
                    inRange = mouseX >= bounds.left && mouseX <= bounds.right && mouseY >= bounds.top && mouseY <= bounds.bottom;
                }

                return inRange;
            },

            inLabelRange: function(mouseX, mouseY) {
                var me = this;
                if (!me._view) {
                    return false;
                }

                var inRange = false;
                var bounds = getBarBounds(me);

                if (isVertical(me)) {
                    inRange = mouseX >= bounds.left && mouseX <= bounds.right;
                } else {
                    inRange = mouseY >= bounds.top && mouseY <= bounds.bottom;
                }

                return inRange;
            },

            inXRange: function(mouseX) {
                var bounds = getBarBounds(this);
                return mouseX >= bounds.left && mouseX <= bounds.right;
            },

            inYRange: function(mouseY) {
                var bounds = getBarBounds(this);
                return mouseY >= bounds.top && mouseY <= bounds.bottom;
            },

            getCenterPoint: function() {
                var vm = this._view;
                var x, y;
                if (isVertical(this)) {
                    x = vm.x;
                    y = (vm.y + vm.base) / 2;
                } else {
                    x = (vm.x + vm.base) / 2;
                    y = vm.y;
                }

                return {x: x, y: y};
            },

            getArea: function() {
                var vm = this._view;
                return vm.width * Math.abs(vm.y - vm.base);
            },

            tooltipPosition: function() {
                var vm = this._view;
                return {
                    x: vm.x,
                    y: vm.y
                };
            }
        });

    },{"25":25,"26":26}],40:[function(require,module,exports){
        'use strict';

        module.exports = {};
        module.exports.Arc = require(36);
        module.exports.Line = require(37);
        module.exports.Point = require(38);
        module.exports.Rectangle = require(39);

    },{"36":36,"37":37,"38":38,"39":39}],41:[function(require,module,exports){
        'use strict';

        var helpers = require(42);

        /**
         * @namespace Chart.helpers.canvas
         */
        var exports = module.exports = {
            /**
             * Clears the entire canvas associated to the given `chart`.
             * @param {Chart} chart - The chart for which to clear the canvas.
             */
            clear: function(chart) {
                chart.ctx.clearRect(0, 0, chart.width, chart.height);
            },

            /**
             * Creates a "path" for a rectangle with rounded corners at position (x, y) with a
             * given size (width, height) and the same `radius` for all corners.
             * @param {CanvasRenderingContext2D} ctx - The canvas 2D Context.
             * @param {Number} x - The x axis of the coordinate for the rectangle starting point.
             * @param {Number} y - The y axis of the coordinate for the rectangle starting point.
             * @param {Number} width - The rectangle's width.
             * @param {Number} height - The rectangle's height.
             * @param {Number} radius - The rounded amount (in pixels) for the four corners.
             * @todo handle `radius` as top-left, top-right, bottom-right, bottom-left array/object?
             */
            roundedRect: function(ctx, x, y, width, height, radius) {
                if (radius) {
                    var rx = Math.min(radius, width / 2);
                    var ry = Math.min(radius, height / 2);

                    ctx.moveTo(x + rx, y);
                    ctx.lineTo(x + width - rx, y);
                    ctx.quadraticCurveTo(x + width, y, x + width, y + ry);
                    ctx.lineTo(x + width, y + height - ry);
                    ctx.quadraticCurveTo(x + width, y + height, x + width - rx, y + height);
                    ctx.lineTo(x + rx, y + height);
                    ctx.quadraticCurveTo(x, y + height, x, y + height - ry);
                    ctx.lineTo(x, y + ry);
                    ctx.quadraticCurveTo(x, y, x + rx, y);
                } else {
                    ctx.rect(x, y, width, height);
                }
            },

            drawPoint: function(ctx, style, radius, x, y) {
                var type, edgeLength, xOffset, yOffset, height, size;

                if (style && typeof style === 'object') {
                    type = style.toString();
                    if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') {
                        ctx.drawImage(style, x - style.width / 2, y - style.height / 2, style.width, style.height);
                        return;
                    }
                }

                if (isNaN(radius) || radius <= 0) {
                    return;
                }

                switch (style) {
                    // Default includes circle
                    default:
                        ctx.beginPath();
                        ctx.arc(x, y, radius, 0, Math.PI * 2);
                        ctx.closePath();
                        ctx.fill();
                        break;
                    case 'triangle':
                        ctx.beginPath();
                        edgeLength = 3 * radius / Math.sqrt(3);
                        height = edgeLength * Math.sqrt(3) / 2;
                        ctx.moveTo(x - edgeLength / 2, y + height / 3);
                        ctx.lineTo(x + edgeLength / 2, y + height / 3);
                        ctx.lineTo(x, y - 2 * height / 3);
                        ctx.closePath();
                        ctx.fill();
                        break;
                    case 'rect':
                        size = 1 / Math.SQRT2 * radius;
                        ctx.beginPath();
                        ctx.fillRect(x - size, y - size, 2 * size, 2 * size);
                        ctx.strokeRect(x - size, y - size, 2 * size, 2 * size);
                        break;
                    case 'rectRounded':
                        var offset = radius / Math.SQRT2;
                        var leftX = x - offset;
                        var topY = y - offset;
                        var sideSize = Math.SQRT2 * radius;
                        ctx.beginPath();
                        this.roundedRect(ctx, leftX, topY, sideSize, sideSize, radius / 2);
                        ctx.closePath();
                        ctx.fill();
                        break;
                    case 'rectRot':
                        size = 1 / Math.SQRT2 * radius;
                        ctx.beginPath();
                        ctx.moveTo(x - size, y);
                        ctx.lineTo(x, y + size);
                        ctx.lineTo(x + size, y);
                        ctx.lineTo(x, y - size);
                        ctx.closePath();
                        ctx.fill();
                        break;
                    case 'cross':
                        ctx.beginPath();
                        ctx.moveTo(x, y + radius);
                        ctx.lineTo(x, y - radius);
                        ctx.moveTo(x - radius, y);
                        ctx.lineTo(x + radius, y);
                        ctx.closePath();
                        break;
                    case 'crossRot':
                        ctx.beginPath();
                        xOffset = Math.cos(Math.PI / 4) * radius;
                        yOffset = Math.sin(Math.PI / 4) * radius;
                        ctx.moveTo(x - xOffset, y - yOffset);
                        ctx.lineTo(x + xOffset, y + yOffset);
                        ctx.moveTo(x - xOffset, y + yOffset);
                        ctx.lineTo(x + xOffset, y - yOffset);
                        ctx.closePath();
                        break;
                    case 'star':
                        ctx.beginPath();
                        ctx.moveTo(x, y + radius);
                        ctx.lineTo(x, y - radius);
                        ctx.moveTo(x - radius, y);
                        ctx.lineTo(x + radius, y);
                        xOffset = Math.cos(Math.PI / 4) * radius;
                        yOffset = Math.sin(Math.PI / 4) * radius;
                        ctx.moveTo(x - xOffset, y - yOffset);
                        ctx.lineTo(x + xOffset, y + yOffset);
                        ctx.moveTo(x - xOffset, y + yOffset);
                        ctx.lineTo(x + xOffset, y - yOffset);
                        ctx.closePath();
                        break;
                    case 'line':
                        ctx.beginPath();
                        ctx.moveTo(x - radius, y);
                        ctx.lineTo(x + radius, y);
                        ctx.closePath();
                        break;
                    case 'dash':
                        ctx.beginPath();
                        ctx.moveTo(x, y);
                        ctx.lineTo(x + radius, y);
                        ctx.closePath();
                        break;
                }

                ctx.stroke();
            },

            clipArea: function(ctx, area) {
                ctx.save();
                ctx.beginPath();
                ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top);
                ctx.clip();
            },

            unclipArea: function(ctx) {
                ctx.restore();
            },

            lineTo: function(ctx, previous, target, flip) {
                if (target.steppedLine) {
                    if ((target.steppedLine === 'after' && !flip) || (target.steppedLine !== 'after' && flip)) {
                        ctx.lineTo(previous.x, target.y);
                    } else {
                        ctx.lineTo(target.x, previous.y);
                    }
                    ctx.lineTo(target.x, target.y);
                    return;
                }

                if (!target.tension) {
                    ctx.lineTo(target.x, target.y);
                    return;
                }

                ctx.bezierCurveTo(
                    flip ? previous.controlPointPreviousX : previous.controlPointNextX,
                    flip ? previous.controlPointPreviousY : previous.controlPointNextY,
                    flip ? target.controlPointNextX : target.controlPointPreviousX,
                    flip ? target.controlPointNextY : target.controlPointPreviousY,
                    target.x,
                    target.y);
            }
        };

// DEPRECATIONS

        /**
         * Provided for backward compatibility, use Chart.helpers.canvas.clear instead.
         * @namespace Chart.helpers.clear
         * @deprecated since version 2.7.0
         * @todo remove at version 3
         * @private
         */
        helpers.clear = exports.clear;

        /**
         * Provided for backward compatibility, use Chart.helpers.canvas.roundedRect instead.
         * @namespace Chart.helpers.drawRoundedRectangle
         * @deprecated since version 2.7.0
         * @todo remove at version 3
         * @private
         */
        helpers.drawRoundedRectangle = function(ctx) {
            ctx.beginPath();
            exports.roundedRect.apply(exports, arguments);
            ctx.closePath();
        };

    },{"42":42}],42:[function(require,module,exports){
        'use strict';

        /**
         * @namespace Chart.helpers
         */
        var helpers = {
            /**
             * An empty function that can be used, for example, for optional callback.
             */
            noop: function() {},

            /**
             * Returns a unique id, sequentially generated from a global variable.
             * @returns {Number}
             * @function
             */
            uid: (function() {
                var id = 0;
                return function() {
                    return id++;
                };
            }()),

            /**
             * Returns true if `value` is neither null nor undefined, else returns false.
             * @param {*} value - The value to test.
             * @returns {Boolean}
             * @since 2.7.0
             */
            isNullOrUndef: function(value) {
                return value === null || typeof value === 'undefined';
            },

            /**
             * Returns true if `value` is an array, else returns false.
             * @param {*} value - The value to test.
             * @returns {Boolean}
             * @function
             */
            isArray: Array.isArray ? Array.isArray : function(value) {
                return Object.prototype.toString.call(value) === '[object Array]';
            },

            /**
             * Returns true if `value` is an object (excluding null), else returns false.
             * @param {*} value - The value to test.
             * @returns {Boolean}
             * @since 2.7.0
             */
            isObject: function(value) {
                return value !== null && Object.prototype.toString.call(value) === '[object Object]';
            },

            /**
             * Returns `value` if defined, else returns `defaultValue`.
             * @param {*} value - The value to return if defined.
             * @param {*} defaultValue - The value to return if `value` is undefined.
             * @returns {*}
             */
            valueOrDefault: function(value, defaultValue) {
                return typeof value === 'undefined' ? defaultValue : value;
            },

            /**
             * Returns value at the given `index` in array if defined, else returns `defaultValue`.
             * @param {Array} value - The array to lookup for value at `index`.
             * @param {Number} index - The index in `value` to lookup for value.
             * @param {*} defaultValue - The value to return if `value[index]` is undefined.
             * @returns {*}
             */
            valueAtIndexOrDefault: function(value, index, defaultValue) {
                return helpers.valueOrDefault(helpers.isArray(value) ? value[index] : value, defaultValue);
            },

            /**
             * Calls `fn` with the given `args` in the scope defined by `thisArg` and returns the
             * value returned by `fn`. If `fn` is not a function, this method returns undefined.
             * @param {Function} fn - The function to call.
             * @param {Array|undefined|null} args - The arguments with which `fn` should be called.
             * @param {Object} [thisArg] - The value of `this` provided for the call to `fn`.
             * @returns {*}
             */
            callback: function(fn, args, thisArg) {
                if (fn && typeof fn.call === 'function') {
                    return fn.apply(thisArg, args);
                }
            },

            /**
             * Note(SB) for performance sake, this method should only be used when loopable type
             * is unknown or in none intensive code (not called often and small loopable). Else
             * it's preferable to use a regular for() loop and save extra function calls.
             * @param {Object|Array} loopable - The object or array to be iterated.
             * @param {Function} fn - The function to call for each item.
             * @param {Object} [thisArg] - The value of `this` provided for the call to `fn`.
             * @param {Boolean} [reverse] - If true, iterates backward on the loopable.
             */
            each: function(loopable, fn, thisArg, reverse) {
                var i, len, keys;
                if (helpers.isArray(loopable)) {
                    len = loopable.length;
                    if (reverse) {
                        for (i = len - 1; i >= 0; i--) {
                            fn.call(thisArg, loopable[i], i);
                        }
                    } else {
                        for (i = 0; i < len; i++) {
                            fn.call(thisArg, loopable[i], i);
                        }
                    }
                } else if (helpers.isObject(loopable)) {
                    keys = Object.keys(loopable);
                    len = keys.length;
                    for (i = 0; i < len; i++) {
                        fn.call(thisArg, loopable[keys[i]], keys[i]);
                    }
                }
            },

            /**
             * Returns true if the `a0` and `a1` arrays have the same content, else returns false.
             * @see http://stackoverflow.com/a/14853974
             * @param {Array} a0 - The array to compare
             * @param {Array} a1 - The array to compare
             * @returns {Boolean}
             */
            arrayEquals: function(a0, a1) {
                var i, ilen, v0, v1;

                if (!a0 || !a1 || a0.length !== a1.length) {
                    return false;
                }

                for (i = 0, ilen = a0.length; i < ilen; ++i) {
                    v0 = a0[i];
                    v1 = a1[i];

                    if (v0 instanceof Array && v1 instanceof Array) {
                        if (!helpers.arrayEquals(v0, v1)) {
                            return false;
                        }
                    } else if (v0 !== v1) {
                        // NOTE: two different object instances will never be equal: {x:20} != {x:20}
                        return false;
                    }
                }

                return true;
            },

            /**
             * Returns a deep copy of `source` without keeping references on objects and arrays.
             * @param {*} source - The value to clone.
             * @returns {*}
             */
            clone: function(source) {
                if (helpers.isArray(source)) {
                    return source.map(helpers.clone);
                }

                if (helpers.isObject(source)) {
                    var target = {};
                    var keys = Object.keys(source);
                    var klen = keys.length;
                    var k = 0;

                    for (; k < klen; ++k) {
                        target[keys[k]] = helpers.clone(source[keys[k]]);
                    }

                    return target;
                }

                return source;
            },

            /**
             * The default merger when Chart.helpers.merge is called without merger option.
             * Note(SB): this method is also used by configMerge and scaleMerge as fallback.
             * @private
             */
            _merger: function(key, target, source, options) {
                var tval = target[key];
                var sval = source[key];

                if (helpers.isObject(tval) && helpers.isObject(sval)) {
                    helpers.merge(tval, sval, options);
                } else {
                    target[key] = helpers.clone(sval);
                }
            },

            /**
             * Merges source[key] in target[key] only if target[key] is undefined.
             * @private
             */
            _mergerIf: function(key, target, source) {
                var tval = target[key];
                var sval = source[key];

                if (helpers.isObject(tval) && helpers.isObject(sval)) {
                    helpers.mergeIf(tval, sval);
                } else if (!target.hasOwnProperty(key)) {
                    target[key] = helpers.clone(sval);
                }
            },

            /**
             * Recursively deep copies `source` properties into `target` with the given `options`.
             * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
             * @param {Object} target - The target object in which all sources are merged into.
             * @param {Object|Array(Object)} source - Object(s) to merge into `target`.
             * @param {Object} [options] - Merging options:
             * @param {Function} [options.merger] - The merge method (key, target, source, options)
             * @returns {Object} The `target` object.
             */
            merge: function(target, source, options) {
                var sources = helpers.isArray(source) ? source : [source];
                var ilen = sources.length;
                var merge, i, keys, klen, k;

                if (!helpers.isObject(target)) {
                    return target;
                }

                options = options || {};
                merge = options.merger || helpers._merger;

                for (i = 0; i < ilen; ++i) {
                    source = sources[i];
                    if (!helpers.isObject(source)) {
                        continue;
                    }

                    keys = Object.keys(source);
                    for (k = 0, klen = keys.length; k < klen; ++k) {
                        merge(keys[k], target, source, options);
                    }
                }

                return target;
            },

            /**
             * Recursively deep copies `source` properties into `target` *only* if not defined in target.
             * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
             * @param {Object} target - The target object in which all sources are merged into.
             * @param {Object|Array(Object)} source - Object(s) to merge into `target`.
             * @returns {Object} The `target` object.
             */
            mergeIf: function(target, source) {
                return helpers.merge(target, source, {merger: helpers._mergerIf});
            },

            /**
             * Applies the contents of two or more objects together into the first object.
             * @param {Object} target - The target object in which all objects are merged into.
             * @param {Object} arg1 - Object containing additional properties to merge in target.
             * @param {Object} argN - Additional objects containing properties to merge in target.
             * @returns {Object} The `target` object.
             */
            extend: function(target) {
                var setFn = function(value, key) {
                    target[key] = value;
                };
                for (var i = 1, ilen = arguments.length; i < ilen; ++i) {
                    helpers.each(arguments[i], setFn);
                }
                return target;
            },

            /**
             * Basic javascript inheritance based on the model created in Backbone.js
             */
            inherits: function(extensions) {
                var me = this;
                var ChartElement = (extensions && extensions.hasOwnProperty('constructor')) ? extensions.constructor : function() {
                    return me.apply(this, arguments);
                };

                var Surrogate = function() {
                    this.constructor = ChartElement;
                };

                Surrogate.prototype = me.prototype;
                ChartElement.prototype = new Surrogate();
                ChartElement.extend = helpers.inherits;

                if (extensions) {
                    helpers.extend(ChartElement.prototype, extensions);
                }

                ChartElement.__super__ = me.prototype;
                return ChartElement;
            }
        };

        module.exports = helpers;

// DEPRECATIONS

        /**
         * Provided for backward compatibility, use Chart.helpers.callback instead.
         * @function Chart.helpers.callCallback
         * @deprecated since version 2.6.0
         * @todo remove at version 3
         * @private
         */
        helpers.callCallback = helpers.callback;

        /**
         * Provided for backward compatibility, use Array.prototype.indexOf instead.
         * Array.prototype.indexOf compatibility: Chrome, Opera, Safari, FF1.5+, IE9+
         * @function Chart.helpers.indexOf
         * @deprecated since version 2.7.0
         * @todo remove at version 3
         * @private
         */
        helpers.indexOf = function(array, item, fromIndex) {
            return Array.prototype.indexOf.call(array, item, fromIndex);
        };

        /**
         * Provided for backward compatibility, use Chart.helpers.valueOrDefault instead.
         * @function Chart.helpers.getValueOrDefault
         * @deprecated since version 2.7.0
         * @todo remove at version 3
         * @private
         */
        helpers.getValueOrDefault = helpers.valueOrDefault;

        /**
         * Provided for backward compatibility, use Chart.helpers.valueAtIndexOrDefault instead.
         * @function Chart.helpers.getValueAtIndexOrDefault
         * @deprecated since version 2.7.0
         * @todo remove at version 3
         * @private
         */
        helpers.getValueAtIndexOrDefault = helpers.valueAtIndexOrDefault;

    },{}],43:[function(require,module,exports){
        'use strict';

        var helpers = require(42);

        /**
         * Easing functions adapted from Robert Penner's easing equations.
         * @namespace Chart.helpers.easingEffects
         * @see http://www.robertpenner.com/easing/
         */
        var effects = {
            linear: function(t) {
                return t;
            },

            easeInQuad: function(t) {
                return t * t;
            },

            easeOutQuad: function(t) {
                return -t * (t - 2);
            },

            easeInOutQuad: function(t) {
                if ((t /= 0.5) < 1) {
                    return 0.5 * t * t;
                }
                return -0.5 * ((--t) * (t - 2) - 1);
            },

            easeInCubic: function(t) {
                return t * t * t;
            },

            easeOutCubic: function(t) {
                return (t = t - 1) * t * t + 1;
            },

            easeInOutCubic: function(t) {
                if ((t /= 0.5) < 1) {
                    return 0.5 * t * t * t;
                }
                return 0.5 * ((t -= 2) * t * t + 2);
            },

            easeInQuart: function(t) {
                return t * t * t * t;
            },

            easeOutQuart: function(t) {
                return -((t = t - 1) * t * t * t - 1);
            },

            easeInOutQuart: function(t) {
                if ((t /= 0.5) < 1) {
                    return 0.5 * t * t * t * t;
                }
                return -0.5 * ((t -= 2) * t * t * t - 2);
            },

            easeInQuint: function(t) {
                return t * t * t * t * t;
            },

            easeOutQuint: function(t) {
                return (t = t - 1) * t * t * t * t + 1;
            },

            easeInOutQuint: function(t) {
                if ((t /= 0.5) < 1) {
                    return 0.5 * t * t * t * t * t;
                }
                return 0.5 * ((t -= 2) * t * t * t * t + 2);
            },

            easeInSine: function(t) {
                return -Math.cos(t * (Math.PI / 2)) + 1;
            },

            easeOutSine: function(t) {
                return Math.sin(t * (Math.PI / 2));
            },

            easeInOutSine: function(t) {
                return -0.5 * (Math.cos(Math.PI * t) - 1);
            },

            easeInExpo: function(t) {
                return (t === 0) ? 0 : Math.pow(2, 10 * (t - 1));
            },

            easeOutExpo: function(t) {
                return (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1;
            },

            easeInOutExpo: function(t) {
                if (t === 0) {
                    return 0;
                }
                if (t === 1) {
                    return 1;
                }
                if ((t /= 0.5) < 1) {
                    return 0.5 * Math.pow(2, 10 * (t - 1));
                }
                return 0.5 * (-Math.pow(2, -10 * --t) + 2);
            },

            easeInCirc: function(t) {
                if (t >= 1) {
                    return t;
                }
                return -(Math.sqrt(1 - t * t) - 1);
            },

            easeOutCirc: function(t) {
                return Math.sqrt(1 - (t = t - 1) * t);
            },

            easeInOutCirc: function(t) {
                if ((t /= 0.5) < 1) {
                    return -0.5 * (Math.sqrt(1 - t * t) - 1);
                }
                return 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1);
            },

            easeInElastic: function(t) {
                var s = 1.70158;
                var p = 0;
                var a = 1;
                if (t === 0) {
                    return 0;
                }
                if (t === 1) {
                    return 1;
                }
                if (!p) {
                    p = 0.3;
                }
                if (a < 1) {
                    a = 1;
                    s = p / 4;
                } else {
                    s = p / (2 * Math.PI) * Math.asin(1 / a);
                }
                return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
            },

            easeOutElastic: function(t) {
                var s = 1.70158;
                var p = 0;
                var a = 1;
                if (t === 0) {
                    return 0;
                }
                if (t === 1) {
                    return 1;
                }
                if (!p) {
                    p = 0.3;
                }
                if (a < 1) {
                    a = 1;
                    s = p / 4;
                } else {
                    s = p / (2 * Math.PI) * Math.asin(1 / a);
                }
                return a * Math.pow(2, -10 * t) * Math.sin((t - s) * (2 * Math.PI) / p) + 1;
            },

            easeInOutElastic: function(t) {
                var s = 1.70158;
                var p = 0;
                var a = 1;
                if (t === 0) {
                    return 0;
                }
                if ((t /= 0.5) === 2) {
                    return 1;
                }
                if (!p) {
                    p = 0.45;
                }
                if (a < 1) {
                    a = 1;
                    s = p / 4;
                } else {
                    s = p / (2 * Math.PI) * Math.asin(1 / a);
                }
                if (t < 1) {
                    return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
                }
                return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p) * 0.5 + 1;
            },
            easeInBack: function(t) {
                var s = 1.70158;
                return t * t * ((s + 1) * t - s);
            },

            easeOutBack: function(t) {
                var s = 1.70158;
                return (t = t - 1) * t * ((s + 1) * t + s) + 1;
            },

            easeInOutBack: function(t) {
                var s = 1.70158;
                if ((t /= 0.5) < 1) {
                    return 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s));
                }
                return 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2);
            },

            easeInBounce: function(t) {
                return 1 - effects.easeOutBounce(1 - t);
            },

            easeOutBounce: function(t) {
                if (t < (1 / 2.75)) {
                    return 7.5625 * t * t;
                }
                if (t < (2 / 2.75)) {
                    return 7.5625 * (t -= (1.5 / 2.75)) * t + 0.75;
                }
                if (t < (2.5 / 2.75)) {
                    return 7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375;
                }
                return 7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375;
            },

            easeInOutBounce: function(t) {
                if (t < 0.5) {
                    return effects.easeInBounce(t * 2) * 0.5;
                }
                return effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5;
            }
        };

        module.exports = {
            effects: effects
        };

// DEPRECATIONS

        /**
         * Provided for backward compatibility, use Chart.helpers.easing.effects instead.
         * @function Chart.helpers.easingEffects
         * @deprecated since version 2.7.0
         * @todo remove at version 3
         * @private
         */
        helpers.easingEffects = effects;

    },{"42":42}],44:[function(require,module,exports){
        'use strict';

        var helpers = require(42);

        /**
         * @alias Chart.helpers.options
         * @namespace
         */
        module.exports = {
            /**
             * Converts the given line height `value` in pixels for a specific font `size`.
             * @param {Number|String} value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em').
             * @param {Number} size - The font size (in pixels) used to resolve relative `value`.
             * @returns {Number} The effective line height in pixels (size * 1.2 if value is invalid).
             * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height
             * @since 2.7.0
             */
            toLineHeight: function(value, size) {
                var matches = ('' + value).match(/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/);
                if (!matches || matches[1] === 'normal') {
                    return size * 1.2;
                }

                value = +matches[2];

                switch (matches[3]) {
                    case 'px':
                        return value;
                    case '%':
                        value /= 100;
                        break;
                    default:
                        break;
                }

                return size * value;
            },

            /**
             * Converts the given value into a padding object with pre-computed width/height.
             * @param {Number|Object} value - If a number, set the value to all TRBL component,
             *  else, if and object, use defined properties and sets undefined ones to 0.
             * @returns {Object} The padding values (top, right, bottom, left, width, height)
             * @since 2.7.0
             */
            toPadding: function(value) {
                var t, r, b, l;

                if (helpers.isObject(value)) {
                    t = +value.top || 0;
                    r = +value.right || 0;
                    b = +value.bottom || 0;
                    l = +value.left || 0;
                } else {
                    t = r = b = l = +value || 0;
                }

                return {
                    top: t,
                    right: r,
                    bottom: b,
                    left: l,
                    height: t + b,
                    width: l + r
                };
            },

            /**
             * Evaluates the given `inputs` sequentially and returns the first defined value.
             * @param {Array[]} inputs - An array of values, falling back to the last value.
             * @param {Object} [context] - If defined and the current value is a function, the value
             * is called with `context` as first argument and the result becomes the new input.
             * @param {Number} [index] - If defined and the current value is an array, the value
             * at `index` become the new input.
             * @since 2.7.0
             */
            resolve: function(inputs, context, index) {
                var i, ilen, value;

                for (i = 0, ilen = inputs.length; i < ilen; ++i) {
                    value = inputs[i];
                    if (value === undefined) {
                        continue;
                    }
                    if (context !== undefined && typeof value === 'function') {
                        value = value(context);
                    }
                    if (index !== undefined && helpers.isArray(value)) {
                        value = value[index];
                    }
                    if (value !== undefined) {
                        return value;
                    }
                }
            }
        };

    },{"42":42}],45:[function(require,module,exports){
        'use strict';

        module.exports = require(42);
        module.exports.easing = require(43);
        module.exports.canvas = require(41);
        module.exports.options = require(44);

    },{"41":41,"42":42,"43":43,"44":44}],46:[function(require,module,exports){
        /**
         * Platform fallback implementation (minimal).
         * @see https://github.com/chartjs/Chart.js/pull/4591#issuecomment-319575939
         */

        module.exports = {
            acquireContext: function(item) {
                if (item && item.canvas) {
                    // Support for any object associated to a canvas (including a context2d)
                    item = item.canvas;
                }

                return item && item.getContext('2d') || null;
            }
        };

    },{}],47:[function(require,module,exports){
        /**
         * Chart.Platform implementation for targeting a web browser
         */

        'use strict';

        var helpers = require(45);

        var EXPANDO_KEY = '$chartjs';
        var CSS_PREFIX = 'chartjs-';
        var CSS_RENDER_MONITOR = CSS_PREFIX + 'render-monitor';
        var CSS_RENDER_ANIMATION = CSS_PREFIX + 'render-animation';
        var ANIMATION_START_EVENTS = ['animationstart', 'webkitAnimationStart'];

        /**
         * DOM event types -> Chart.js event types.
         * Note: only events with different types are mapped.
         * @see https://developer.mozilla.org/en-US/docs/Web/Events
         */
        var EVENT_TYPES = {
            touchstart: 'mousedown',
            touchmove: 'mousemove',
            touchend: 'mouseup',
            pointerenter: 'mouseenter',
            pointerdown: 'mousedown',
            pointermove: 'mousemove',
            pointerup: 'mouseup',
            pointerleave: 'mouseout',
            pointerout: 'mouseout'
        };

        /**
         * The "used" size is the final value of a dimension property after all calculations have
         * been performed. This method uses the computed style of `element` but returns undefined
         * if the computed style is not expressed in pixels. That can happen in some cases where
         * `element` has a size relative to its parent and this last one is not yet displayed,
         * for example because of `display: none` on a parent node.
         * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value
         * @returns {Number} Size in pixels or undefined if unknown.
         */
        function readUsedSize(element, property) {
            var value = helpers.getStyle(element, property);
            var matches = value && value.match(/^(\d+)(\.\d+)?px$/);
            return matches ? Number(matches[1]) : undefined;
        }

        /**
         * Initializes the canvas style and render size without modifying the canvas display size,
         * since responsiveness is handled by the controller.resize() method. The config is used
         * to determine the aspect ratio to apply in case no explicit height has been specified.
         */
        function initCanvas(canvas, config) {
            var style = canvas.style;

            // NOTE(SB) canvas.getAttribute('width') !== canvas.width: in the first case it
            // returns null or '' if no explicit value has been set to the canvas attribute.
            var renderHeight = canvas.getAttribute('height');
            var renderWidth = canvas.getAttribute('width');

            // Chart.js modifies some canvas values that we want to restore on destroy
            canvas[EXPANDO_KEY] = {
                initial: {
                    height: renderHeight,
                    width: renderWidth,
                    style: {
                        display: style.display,
                        height: style.height,
                        width: style.width
                    }
                }
            };

            // Force canvas to display as block to avoid extra space caused by inline
            // elements, which would interfere with the responsive resize process.
            // https://github.com/chartjs/Chart.js/issues/2538
            style.display = style.display || 'block';

            if (renderWidth === null || renderWidth === '') {
                var displayWidth = readUsedSize(canvas, 'width');
                if (displayWidth !== undefined) {
                    canvas.width = displayWidth;
                }
            }

            if (renderHeight === null || renderHeight === '') {
                if (canvas.style.height === '') {
                    // If no explicit render height and style height, let's apply the aspect ratio,
                    // which one can be specified by the user but also by charts as default option
                    // (i.e. options.aspectRatio). If not specified, use canvas aspect ratio of 2.
                    canvas.height = canvas.width / (config.options.aspectRatio || 2);
                } else {
                    var displayHeight = readUsedSize(canvas, 'height');
                    if (displayWidth !== undefined) {
                        canvas.height = displayHeight;
                    }
                }
            }

            return canvas;
        }

        /**
         * Detects support for options object argument in addEventListener.
         * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support
         * @private
         */
        var supportsEventListenerOptions = (function() {
            var supports = false;
            try {
                var options = Object.defineProperty({}, 'passive', {
                    get: function() {
                        supports = true;
                    }
                });
                window.addEventListener('e', null, options);
            } catch (e) {
                // continue regardless of error
            }
            return supports;
        }());

// Default passive to true as expected by Chrome for 'touchstart' and 'touchend' events.
// https://github.com/chartjs/Chart.js/issues/4287
        var eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false;

        function addEventListener(node, type, listener) {
            node.addEventListener(type, listener, eventListenerOptions);
        }

        function removeEventListener(node, type, listener) {
            node.removeEventListener(type, listener, eventListenerOptions);
        }

        function createEvent(type, chart, x, y, nativeEvent) {
            return {
                type: type,
                chart: chart,
                native: nativeEvent || null,
                x: x !== undefined ? x : null,
                y: y !== undefined ? y : null,
            };
        }

        function fromNativeEvent(event, chart) {
            var type = EVENT_TYPES[event.type] || event.type;
            var pos = helpers.getRelativePosition(event, chart);
            return createEvent(type, chart, pos.x, pos.y, event);
        }

        function throttled(fn, thisArg) {
            var ticking = false;
            var args = [];

            return function() {
                args = Array.prototype.slice.call(arguments);
                thisArg = thisArg || this;

                if (!ticking) {
                    ticking = true;
                    helpers.requestAnimFrame.call(window, function() {
                        ticking = false;
                        fn.apply(thisArg, args);
                    });
                }
            };
        }

// Implementation based on https://github.com/marcj/css-element-queries
        function createResizer(handler) {
            var resizer = document.createElement('div');
            var cls = CSS_PREFIX + 'size-monitor';
            var maxSize = 1000000;
            var style =
                'position:absolute;' +
                'left:0;' +
                'top:0;' +
                'right:0;' +
                'bottom:0;' +
                'overflow:hidden;' +
                'pointer-events:none;' +
                'visibility:hidden;' +
                'z-index:-1;';

            resizer.style.cssText = style;
            resizer.className = cls;
            resizer.innerHTML =
                '<div class="' + cls + '-expand" style="' + style + '">' +
                '<div style="' +
                'position:absolute;' +
                'width:' + maxSize + 'px;' +
                'height:' + maxSize + 'px;' +
                'left:0;' +
                'top:0">' +
                '</div>' +
                '</div>' +
                '<div class="' + cls + '-shrink" style="' + style + '">' +
                '<div style="' +
                'position:absolute;' +
                'width:200%;' +
                'height:200%;' +
                'left:0; ' +
                'top:0">' +
                '</div>' +
                '</div>';

            var expand = resizer.childNodes[0];
            var shrink = resizer.childNodes[1];

            resizer._reset = function() {
                expand.scrollLeft = maxSize;
                expand.scrollTop = maxSize;
                shrink.scrollLeft = maxSize;
                shrink.scrollTop = maxSize;
            };
            var onScroll = function() {
                resizer._reset();
                handler();
            };

            addEventListener(expand, 'scroll', onScroll.bind(expand, 'expand'));
            addEventListener(shrink, 'scroll', onScroll.bind(shrink, 'shrink'));

            return resizer;
        }

// https://davidwalsh.name/detect-node-insertion
        function watchForRender(node, handler) {
            var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});
            var proxy = expando.renderProxy = function(e) {
                if (e.animationName === CSS_RENDER_ANIMATION) {
                    handler();
                }
            };

            helpers.each(ANIMATION_START_EVENTS, function(type) {
                addEventListener(node, type, proxy);
            });

            // #4737: Chrome might skip the CSS animation when the CSS_RENDER_MONITOR class
            // is removed then added back immediately (same animation frame?). Accessing the
            // `offsetParent` property will force a reflow and re-evaluate the CSS animation.
            // https://gist.github.com/paulirish/5d52fb081b3570c81e3a#box-metrics
            // https://github.com/chartjs/Chart.js/issues/4737
            expando.reflow = !!node.offsetParent;

            node.classList.add(CSS_RENDER_MONITOR);
        }

        function unwatchForRender(node) {
            var expando = node[EXPANDO_KEY] || {};
            var proxy = expando.renderProxy;

            if (proxy) {
                helpers.each(ANIMATION_START_EVENTS, function(type) {
                    removeEventListener(node, type, proxy);
                });

                delete expando.renderProxy;
            }

            node.classList.remove(CSS_RENDER_MONITOR);
        }

        function addResizeListener(node, listener, chart) {
            var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});

            // Let's keep track of this added resizer and thus avoid DOM query when removing it.
            var resizer = expando.resizer = createResizer(throttled(function() {
                if (expando.resizer) {
                    return listener(createEvent('resize', chart));
                }
            }));

            // The resizer needs to be attached to the node parent, so we first need to be
            // sure that `node` is attached to the DOM before injecting the resizer element.
            watchForRender(node, function() {
                if (expando.resizer) {
                    var container = node.parentNode;
                    if (container && container !== resizer.parentNode) {
                        container.insertBefore(resizer, container.firstChild);
                    }

                    // The container size might have changed, let's reset the resizer state.
                    resizer._reset();
                }
            });
        }

        function removeResizeListener(node) {
            var expando = node[EXPANDO_KEY] || {};
            var resizer = expando.resizer;

            delete expando.resizer;
            unwatchForRender(node);

            if (resizer && resizer.parentNode) {
                resizer.parentNode.removeChild(resizer);
            }
        }

        function injectCSS(platform, css) {
            // http://stackoverflow.com/q/3922139
            var style = platform._style || document.createElement('style');
            if (!platform._style) {
                platform._style = style;
                css = '/* Chart.js */\n' + css;
                style.setAttribute('type', 'text/css');
                document.getElementsByTagName('head')[0].appendChild(style);
            }

            style.appendChild(document.createTextNode(css));
        }

        module.exports = {
            /**
             * This property holds whether this platform is enabled for the current environment.
             * Currently used by platform.js to select the proper implementation.
             * @private
             */
            _enabled: typeof window !== 'undefined' && typeof document !== 'undefined',

            initialize: function() {
                var keyframes = 'from{opacity:0.99}to{opacity:1}';

                injectCSS(this,
                    // DOM rendering detection
                    // https://davidwalsh.name/detect-node-insertion
                    '@-webkit-keyframes ' + CSS_RENDER_ANIMATION + '{' + keyframes + '}' +
                    '@keyframes ' + CSS_RENDER_ANIMATION + '{' + keyframes + '}' +
                    '.' + CSS_RENDER_MONITOR + '{' +
                    '-webkit-animation:' + CSS_RENDER_ANIMATION + ' 0.001s;' +
                    'animation:' + CSS_RENDER_ANIMATION + ' 0.001s;' +
                    '}'
                );
            },

            acquireContext: function(item, config) {
                if (typeof item === 'string') {
                    item = document.getElementById(item);
                } else if (item.length) {
                    // Support for array based queries (such as jQuery)
                    item = item[0];
                }

                if (item && item.canvas) {
                    // Support for any object associated to a canvas (including a context2d)
                    item = item.canvas;
                }

                // To prevent canvas fingerprinting, some add-ons undefine the getContext
                // method, for example: https://github.com/kkapsner/CanvasBlocker
                // https://github.com/chartjs/Chart.js/issues/2807
                var context = item && item.getContext && item.getContext('2d');

                // `instanceof HTMLCanvasElement/CanvasRenderingContext2D` fails when the item is
                // inside an iframe or when running in a protected environment. We could guess the
                // types from their toString() value but let's keep things flexible and assume it's
                // a sufficient condition if the item has a context2D which has item as `canvas`.
                // https://github.com/chartjs/Chart.js/issues/3887
                // https://github.com/chartjs/Chart.js/issues/4102
                // https://github.com/chartjs/Chart.js/issues/4152
                if (context && context.canvas === item) {
                    initCanvas(item, config);
                    return context;
                }

                return null;
            },

            releaseContext: function(context) {
                var canvas = context.canvas;
                if (!canvas[EXPANDO_KEY]) {
                    return;
                }

                var initial = canvas[EXPANDO_KEY].initial;
                ['height', 'width'].forEach(function(prop) {
                    var value = initial[prop];
                    if (helpers.isNullOrUndef(value)) {
                        canvas.removeAttribute(prop);
                    } else {
                        canvas.setAttribute(prop, value);
                    }
                });

                helpers.each(initial.style || {}, function(value, key) {
                    canvas.style[key] = value;
                });

                // The canvas render size might have been changed (and thus the state stack discarded),
                // we can't use save() and restore() to restore the initial state. So make sure that at
                // least the canvas context is reset to the default state by setting the canvas width.
                // https://www.w3.org/TR/2011/WD-html5-20110525/the-canvas-element.html
                canvas.width = canvas.width;

                delete canvas[EXPANDO_KEY];
            },

            addEventListener: function(chart, type, listener) {
                var canvas = chart.canvas;
                if (type === 'resize') {
                    // Note: the resize event is not supported on all browsers.
                    addResizeListener(canvas, listener, chart);
                    return;
                }

                var expando = listener[EXPANDO_KEY] || (listener[EXPANDO_KEY] = {});
                var proxies = expando.proxies || (expando.proxies = {});
                var proxy = proxies[chart.id + '_' + type] = function(event) {
                    listener(fromNativeEvent(event, chart));
                };

                addEventListener(canvas, type, proxy);
            },

            removeEventListener: function(chart, type, listener) {
                var canvas = chart.canvas;
                if (type === 'resize') {
                    // Note: the resize event is not supported on all browsers.
                    removeResizeListener(canvas, listener);
                    return;
                }

                var expando = listener[EXPANDO_KEY] || {};
                var proxies = expando.proxies || {};
                var proxy = proxies[chart.id + '_' + type];
                if (!proxy) {
                    return;
                }

                removeEventListener(canvas, type, proxy);
            }
        };

// DEPRECATIONS

        /**
         * Provided for backward compatibility, use EventTarget.addEventListener instead.
         * EventTarget.addEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
         * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener
         * @function Chart.helpers.addEvent
         * @deprecated since version 2.7.0
         * @todo remove at version 3
         * @private
         */
        helpers.addEvent = addEventListener;

        /**
         * Provided for backward compatibility, use EventTarget.removeEventListener instead.
         * EventTarget.removeEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
         * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/removeEventListener
         * @function Chart.helpers.removeEvent
         * @deprecated since version 2.7.0
         * @todo remove at version 3
         * @private
         */
        helpers.removeEvent = removeEventListener;

    },{"45":45}],48:[function(require,module,exports){
        'use strict';

        var helpers = require(45);
        var basic = require(46);
        var dom = require(47);

// @TODO Make possible to select another platform at build time.
        var implementation = dom._enabled ? dom : basic;

        /**
         * @namespace Chart.platform
         * @see https://chartjs.gitbooks.io/proposals/content/Platform.html
         * @since 2.4.0
         */
        module.exports = helpers.extend({
            /**
             * @since 2.7.0
             */
            initialize: function() {},

            /**
             * Called at chart construction time, returns a context2d instance implementing
             * the [W3C Canvas 2D Context API standard]{@link https://www.w3.org/TR/2dcontext/}.
             * @param {*} item - The native item from which to acquire context (platform specific)
             * @param {Object} options - The chart options
             * @returns {CanvasRenderingContext2D} context2d instance
             */
            acquireContext: function() {},

            /**
             * Called at chart destruction time, releases any resources associated to the context
             * previously returned by the acquireContext() method.
             * @param {CanvasRenderingContext2D} context - The context2d instance
             * @returns {Boolean} true if the method succeeded, else false
             */
            releaseContext: function() {},

            /**
             * Registers the specified listener on the given chart.
             * @param {Chart} chart - Chart from which to listen for event
             * @param {String} type - The ({@link IEvent}) type to listen for
             * @param {Function} listener - Receives a notification (an object that implements
             * the {@link IEvent} interface) when an event of the specified type occurs.
             */
            addEventListener: function() {},

            /**
             * Removes the specified listener previously registered with addEventListener.
             * @param {Chart} chart -Chart from which to remove the listener
             * @param {String} type - The ({@link IEvent}) type to remove
             * @param {Function} listener - The listener function to remove from the event target.
             */
            removeEventListener: function() {}

        }, implementation);

        /**
         * @interface IPlatform
         * Allows abstracting platform dependencies away from the chart
         * @borrows Chart.platform.acquireContext as acquireContext
         * @borrows Chart.platform.releaseContext as releaseContext
         * @borrows Chart.platform.addEventListener as addEventListener
         * @borrows Chart.platform.removeEventListener as removeEventListener
         */

        /**
         * @interface IEvent
         * @prop {String} type - The event type name, possible values are:
         * 'contextmenu', 'mouseenter', 'mousedown', 'mousemove', 'mouseup', 'mouseout',
         * 'click', 'dblclick', 'keydown', 'keypress', 'keyup' and 'resize'
         * @prop {*} native - The original native event (null for emulated events, e.g. 'resize')
         * @prop {Number} x - The mouse x position, relative to the canvas (null for incompatible events)
         * @prop {Number} y - The mouse y position, relative to the canvas (null for incompatible events)
         */

    },{"45":45,"46":46,"47":47}],49:[function(require,module,exports){
        'use strict';

        module.exports = {};
        module.exports.filler = require(50);
        module.exports.legend = require(51);
        module.exports.title = require(52);

    },{"50":50,"51":51,"52":52}],50:[function(require,module,exports){
        /**
         * Plugin based on discussion from the following Chart.js issues:
         * @see https://github.com/chartjs/Chart.js/issues/2380#issuecomment-279961569
         * @see https://github.com/chartjs/Chart.js/issues/2440#issuecomment-256461897
         */

        'use strict';

        var defaults = require(25);
        var elements = require(40);
        var helpers = require(45);

        defaults._set('global', {
            plugins: {
                filler: {
                    propagate: true
                }
            }
        });

        var mappers = {
            dataset: function(source) {
                var index = source.fill;
                var chart = source.chart;
                var meta = chart.getDatasetMeta(index);
                var visible = meta && chart.isDatasetVisible(index);
                var points = (visible && meta.dataset._children) || [];
                var length = points.length || 0;

                return !length ? null : function(point, i) {
                    return (i < length && points[i]._view) || null;
                };
            },

            boundary: function(source) {
                var boundary = source.boundary;
                var x = boundary ? boundary.x : null;
                var y = boundary ? boundary.y : null;

                return function(point) {
                    return {
                        x: x === null ? point.x : x,
                        y: y === null ? point.y : y,
                    };
                };
            }
        };

// @todo if (fill[0] === '#')
        function decodeFill(el, index, count) {
            var model = el._model || {};
            var fill = model.fill;
            var target;

            if (fill === undefined) {
                fill = !!model.backgroundColor;
            }

            if (fill === false || fill === null) {
                return false;
            }

            if (fill === true) {
                return 'origin';
            }

            target = parseFloat(fill, 10);
            if (isFinite(target) && Math.floor(target) === target) {
                if (fill[0] === '-' || fill[0] === '+') {
                    target = index + target;
                }

                if (target === index || target < 0 || target >= count) {
                    return false;
                }

                return target;
            }

            switch (fill) {
                // compatibility
                case 'bottom':
                    return 'start';
                case 'top':
                    return 'end';
                case 'zero':
                    return 'origin';
                // supported boundaries
                case 'origin':
                case 'start':
                case 'end':
                    return fill;
                // invalid fill values
                default:
                    return false;
            }
        }

        function computeBoundary(source) {
            var model = source.el._model || {};
            var scale = source.el._scale || {};
            var fill = source.fill;
            var target = null;
            var horizontal;

            if (isFinite(fill)) {
                return null;
            }

            // Backward compatibility: until v3, we still need to support boundary values set on
            // the model (scaleTop, scaleBottom and scaleZero) because some external plugins and
            // controllers might still use it (e.g. the Smith chart).

            if (fill === 'start') {
                target = model.scaleBottom === undefined ? scale.bottom : model.scaleBottom;
            } else if (fill === 'end') {
                target = model.scaleTop === undefined ? scale.top : model.scaleTop;
            } else if (model.scaleZero !== undefined) {
                target = model.scaleZero;
            } else if (scale.getBasePosition) {
                target = scale.getBasePosition();
            } else if (scale.getBasePixel) {
                target = scale.getBasePixel();
            }

            if (target !== undefined && target !== null) {
                if (target.x !== undefined && target.y !== undefined) {
                    return target;
                }

                if (typeof target === 'number' && isFinite(target)) {
                    horizontal = scale.isHorizontal();
                    return {
                        x: horizontal ? target : null,
                        y: horizontal ? null : target
                    };
                }
            }

            return null;
        }

        function resolveTarget(sources, index, propagate) {
            var source = sources[index];
            var fill = source.fill;
            var visited = [index];
            var target;

            if (!propagate) {
                return fill;
            }

            while (fill !== false && visited.indexOf(fill) === -1) {
                if (!isFinite(fill)) {
                    return fill;
                }

                target = sources[fill];
                if (!target) {
                    return false;
                }

                if (target.visible) {
                    return fill;
                }

                visited.push(fill);
                fill = target.fill;
            }

            return false;
        }

        function createMapper(source) {
            var fill = source.fill;
            var type = 'dataset';

            if (fill === false) {
                return null;
            }

            if (!isFinite(fill)) {
                type = 'boundary';
            }

            return mappers[type](source);
        }

        function isDrawable(point) {
            return point && !point.skip;
        }

        function drawArea(ctx, curve0, curve1, len0, len1) {
            var i;

            if (!len0 || !len1) {
                return;
            }

            // building first area curve (normal)
            ctx.moveTo(curve0[0].x, curve0[0].y);
            for (i = 1; i < len0; ++i) {
                helpers.canvas.lineTo(ctx, curve0[i - 1], curve0[i]);
            }

            // joining the two area curves
            ctx.lineTo(curve1[len1 - 1].x, curve1[len1 - 1].y);

            // building opposite area curve (reverse)
            for (i = len1 - 1; i > 0; --i) {
                helpers.canvas.lineTo(ctx, curve1[i], curve1[i - 1], true);
            }
        }

        function doFill(ctx, points, mapper, view, color, loop) {
            var count = points.length;
            var span = view.spanGaps;
            var curve0 = [];
            var curve1 = [];
            var len0 = 0;
            var len1 = 0;
            var i, ilen, index, p0, p1, d0, d1;

            ctx.beginPath();

            for (i = 0, ilen = (count + !!loop); i < ilen; ++i) {
                index = i % count;
                p0 = points[index]._view;
                p1 = mapper(p0, index, view);
                d0 = isDrawable(p0);
                d1 = isDrawable(p1);

                if (d0 && d1) {
                    len0 = curve0.push(p0);
                    len1 = curve1.push(p1);
                } else if (len0 && len1) {
                    if (!span) {
                        drawArea(ctx, curve0, curve1, len0, len1);
                        len0 = len1 = 0;
                        curve0 = [];
                        curve1 = [];
                    } else {
                        if (d0) {
                            curve0.push(p0);
                        }
                        if (d1) {
                            curve1.push(p1);
                        }
                    }
                }
            }

            drawArea(ctx, curve0, curve1, len0, len1);

            ctx.closePath();
            ctx.fillStyle = color;
            ctx.fill();
        }

        module.exports = {
            id: 'filler',

            afterDatasetsUpdate: function(chart, options) {
                var count = (chart.data.datasets || []).length;
                var propagate = options.propagate;
                var sources = [];
                var meta, i, el, source;

                for (i = 0; i < count; ++i) {
                    meta = chart.getDatasetMeta(i);
                    el = meta.dataset;
                    source = null;

                    if (el && el._model && el instanceof elements.Line) {
                        source = {
                            visible: chart.isDatasetVisible(i),
                            fill: decodeFill(el, i, count),
                            chart: chart,
                            el: el
                        };
                    }

                    meta.$filler = source;
                    sources.push(source);
                }

                for (i = 0; i < count; ++i) {
                    source = sources[i];
                    if (!source) {
                        continue;
                    }

                    source.fill = resolveTarget(sources, i, propagate);
                    source.boundary = computeBoundary(source);
                    source.mapper = createMapper(source);
                }
            },

            beforeDatasetDraw: function(chart, args) {
                var meta = args.meta.$filler;
                if (!meta) {
                    return;
                }

                var ctx = chart.ctx;
                var el = meta.el;
                var view = el._view;
                var points = el._children || [];
                var mapper = meta.mapper;
                var color = view.backgroundColor || defaults.global.defaultColor;

                if (mapper && color && points.length) {
                    helpers.canvas.clipArea(ctx, chart.chartArea);
                    doFill(ctx, points, mapper, view, color, el._loop);
                    helpers.canvas.unclipArea(ctx);
                }
            }
        };

    },{"25":25,"40":40,"45":45}],51:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var Element = require(26);
        var helpers = require(45);
        var layouts = require(30);

        var noop = helpers.noop;

        defaults._set('global', {
            legend: {
                display: true,
                position: 'top',
                fullWidth: true,
                reverse: false,
                weight: 1000,

                // a callback that will handle
                onClick: function(e, legendItem) {
                    var index = legendItem.datasetIndex;
                    var ci = this.chart;
                    var meta = ci.getDatasetMeta(index);

                    // See controller.isDatasetVisible comment
                    meta.hidden = meta.hidden === null ? !ci.data.datasets[index].hidden : null;

                    // We hid a dataset ... rerender the chart
                    ci.update();
                },

                onHover: null,

                labels: {
                    boxWidth: 40,
                    padding: 10,
                    // Generates labels shown in the legend
                    // Valid properties to return:
                    // text : text to display
                    // fillStyle : fill of coloured box
                    // strokeStyle: stroke of coloured box
                    // hidden : if this legend item refers to a hidden item
                    // lineCap : cap style for line
                    // lineDash
                    // lineDashOffset :
                    // lineJoin :
                    // lineWidth :
                    generateLabels: function(chart) {
                        var data = chart.data;
                        return helpers.isArray(data.datasets) ? data.datasets.map(function(dataset, i) {
                            return {
                                text: dataset.label,
                                fillStyle: (!helpers.isArray(dataset.backgroundColor) ? dataset.backgroundColor : dataset.backgroundColor[0]),
                                hidden: !chart.isDatasetVisible(i),
                                lineCap: dataset.borderCapStyle,
                                lineDash: dataset.borderDash,
                                lineDashOffset: dataset.borderDashOffset,
                                lineJoin: dataset.borderJoinStyle,
                                lineWidth: dataset.borderWidth,
                                strokeStyle: dataset.borderColor,
                                pointStyle: dataset.pointStyle,

                                // Below is extra data used for toggling the datasets
                                datasetIndex: i
                            };
                        }, this) : [];
                    }
                }
            },

            legendCallback: function(chart) {
                var text = [];
                text.push('<ul class="' + chart.id + '-legend">');
                for (var i = 0; i < chart.data.datasets.length; i++) {
                    text.push('<li><span style="background-color:' + chart.data.datasets[i].backgroundColor + '"></span>');
                    if (chart.data.datasets[i].label) {
                        text.push(chart.data.datasets[i].label);
                    }
                    text.push('</li>');
                }
                text.push('</ul>');
                return text.join('');
            }
        });

        /**
         * Helper function to get the box width based on the usePointStyle option
         * @param labelopts {Object} the label options on the legend
         * @param fontSize {Number} the label font size
         * @return {Number} width of the color box area
         */
        function getBoxWidth(labelOpts, fontSize) {
            return labelOpts.usePointStyle ?
                fontSize * Math.SQRT2 :
                labelOpts.boxWidth;
        }

        /**
         * IMPORTANT: this class is exposed publicly as Chart.Legend, backward compatibility required!
         */
        var Legend = Element.extend({

            initialize: function(config) {
                helpers.extend(this, config);

                // Contains hit boxes for each dataset (in dataset order)
                this.legendHitBoxes = [];

                // Are we in doughnut mode which has a different data type
                this.doughnutMode = false;
            },

            // These methods are ordered by lifecycle. Utilities then follow.
            // Any function defined here is inherited by all legend types.
            // Any function can be extended by the legend type

            beforeUpdate: noop,
            update: function(maxWidth, maxHeight, margins) {
                var me = this;

                // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
                me.beforeUpdate();

                // Absorb the master measurements
                me.maxWidth = maxWidth;
                me.maxHeight = maxHeight;
                me.margins = margins;

                // Dimensions
                me.beforeSetDimensions();
                me.setDimensions();
                me.afterSetDimensions();
                // Labels
                me.beforeBuildLabels();
                me.buildLabels();
                me.afterBuildLabels();

                // Fit
                me.beforeFit();
                me.fit();
                me.afterFit();
                //
                me.afterUpdate();

                return me.minSize;
            },
            afterUpdate: noop,

            //

            beforeSetDimensions: noop,
            setDimensions: function() {
                var me = this;
                // Set the unconstrained dimension before label rotation
                if (me.isHorizontal()) {
                    // Reset position before calculating rotation
                    me.width = me.maxWidth;
                    me.left = 0;
                    me.right = me.width;
                } else {
                    me.height = me.maxHeight;

                    // Reset position before calculating rotation
                    me.top = 0;
                    me.bottom = me.height;
                }

                // Reset padding
                me.paddingLeft = 0;
                me.paddingTop = 0;
                me.paddingRight = 0;
                me.paddingBottom = 0;

                // Reset minSize
                me.minSize = {
                    width: 0,
                    height: 0
                };
            },
            afterSetDimensions: noop,

            //

            beforeBuildLabels: noop,
            buildLabels: function() {
                var me = this;
                var labelOpts = me.options.labels || {};
                var legendItems = helpers.callback(labelOpts.generateLabels, [me.chart], me) || [];

                if (labelOpts.filter) {
                    legendItems = legendItems.filter(function(item) {
                        return labelOpts.filter(item, me.chart.data);
                    });
                }

                if (me.options.reverse) {
                    legendItems.reverse();
                }

                me.legendItems = legendItems;
            },
            afterBuildLabels: noop,

            //

            beforeFit: noop,
            fit: function() {
                var me = this;
                var opts = me.options;
                var labelOpts = opts.labels;
                var display = opts.display;

                var ctx = me.ctx;

                var globalDefault = defaults.global;
                var valueOrDefault = helpers.valueOrDefault;
                var fontSize = valueOrDefault(labelOpts.fontSize, globalDefault.defaultFontSize);
                var fontStyle = valueOrDefault(labelOpts.fontStyle, globalDefault.defaultFontStyle);
                var fontFamily = valueOrDefault(labelOpts.fontFamily, globalDefault.defaultFontFamily);
                var labelFont = helpers.fontString(fontSize, fontStyle, fontFamily);

                // Reset hit boxes
                var hitboxes = me.legendHitBoxes = [];

                var minSize = me.minSize;
                var isHorizontal = me.isHorizontal();

                if (isHorizontal) {
                    minSize.width = me.maxWidth; // fill all the width
                    minSize.height = display ? 10 : 0;
                } else {
                    minSize.width = display ? 10 : 0;
                    minSize.height = me.maxHeight; // fill all the height
                }

                // Increase sizes here
                if (display) {
                    ctx.font = labelFont;

                    if (isHorizontal) {
                        // Labels

                        // Width of each line of legend boxes. Labels wrap onto multiple lines when there are too many to fit on one
                        var lineWidths = me.lineWidths = [0];
                        var totalHeight = me.legendItems.length ? fontSize + (labelOpts.padding) : 0;

                        ctx.textAlign = 'left';
                        ctx.textBaseline = 'top';

                        helpers.each(me.legendItems, function(legendItem, i) {
                            var boxWidth = getBoxWidth(labelOpts, fontSize);
                            var width = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;

                            if (lineWidths[lineWidths.length - 1] + width + labelOpts.padding >= me.width) {
                                totalHeight += fontSize + (labelOpts.padding);
                                lineWidths[lineWidths.length] = me.left;
                            }

                            // Store the hitbox width and height here. Final position will be updated in `draw`
                            hitboxes[i] = {
                                left: 0,
                                top: 0,
                                width: width,
                                height: fontSize
                            };

                            lineWidths[lineWidths.length - 1] += width + labelOpts.padding;
                        });

                        minSize.height += totalHeight;

                    } else {
                        var vPadding = labelOpts.padding;
                        var columnWidths = me.columnWidths = [];
                        var totalWidth = labelOpts.padding;
                        var currentColWidth = 0;
                        var currentColHeight = 0;
                        var itemHeight = fontSize + vPadding;

                        helpers.each(me.legendItems, function(legendItem, i) {
                            var boxWidth = getBoxWidth(labelOpts, fontSize);
                            var itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;

                            // If too tall, go to new column
                            if (currentColHeight + itemHeight > minSize.height) {
                                totalWidth += currentColWidth + labelOpts.padding;
                                columnWidths.push(currentColWidth); // previous column width

                                currentColWidth = 0;
                                currentColHeight = 0;
                            }

                            // Get max width
                            currentColWidth = Math.max(currentColWidth, itemWidth);
                            currentColHeight += itemHeight;

                            // Store the hitbox width and height here. Final position will be updated in `draw`
                            hitboxes[i] = {
                                left: 0,
                                top: 0,
                                width: itemWidth,
                                height: fontSize
                            };
                        });

                        totalWidth += currentColWidth;
                        columnWidths.push(currentColWidth);
                        minSize.width += totalWidth;
                    }
                }

                me.width = minSize.width;
                me.height = minSize.height;
            },
            afterFit: noop,

            // Shared Methods
            isHorizontal: function() {
                return this.options.position === 'top' || this.options.position === 'bottom';
            },

            // Actually draw the legend on the canvas
            draw: function() {
                var me = this;
                var opts = me.options;
                var labelOpts = opts.labels;
                var globalDefault = defaults.global;
                var lineDefault = globalDefault.elements.line;
                var legendWidth = me.width;
                var lineWidths = me.lineWidths;

                if (opts.display) {
                    var ctx = me.ctx;
                    var valueOrDefault = helpers.valueOrDefault;
                    var fontColor = valueOrDefault(labelOpts.fontColor, globalDefault.defaultFontColor);
                    var fontSize = valueOrDefault(labelOpts.fontSize, globalDefault.defaultFontSize);
                    var fontStyle = valueOrDefault(labelOpts.fontStyle, globalDefault.defaultFontStyle);
                    var fontFamily = valueOrDefault(labelOpts.fontFamily, globalDefault.defaultFontFamily);
                    var labelFont = helpers.fontString(fontSize, fontStyle, fontFamily);
                    var cursor;

                    // Canvas setup
                    ctx.textAlign = 'left';
                    ctx.textBaseline = 'middle';
                    ctx.lineWidth = 0.5;
                    ctx.strokeStyle = fontColor; // for strikethrough effect
                    ctx.fillStyle = fontColor; // render in correct colour
                    ctx.font = labelFont;

                    var boxWidth = getBoxWidth(labelOpts, fontSize);
                    var hitboxes = me.legendHitBoxes;

                    // current position
                    var drawLegendBox = function(x, y, legendItem) {
                        if (isNaN(boxWidth) || boxWidth <= 0) {
                            return;
                        }

                        // Set the ctx for the box
                        ctx.save();

                        ctx.fillStyle = valueOrDefault(legendItem.fillStyle, globalDefault.defaultColor);
                        ctx.lineCap = valueOrDefault(legendItem.lineCap, lineDefault.borderCapStyle);
                        ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, lineDefault.borderDashOffset);
                        ctx.lineJoin = valueOrDefault(legendItem.lineJoin, lineDefault.borderJoinStyle);
                        ctx.lineWidth = valueOrDefault(legendItem.lineWidth, lineDefault.borderWidth);
                        ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, globalDefault.defaultColor);
                        var isLineWidthZero = (valueOrDefault(legendItem.lineWidth, lineDefault.borderWidth) === 0);

                        if (ctx.setLineDash) {
                            // IE 9 and 10 do not support line dash
                            ctx.setLineDash(valueOrDefault(legendItem.lineDash, lineDefault.borderDash));
                        }

                        if (opts.labels && opts.labels.usePointStyle) {
                            // Recalculate x and y for drawPoint() because its expecting
                            // x and y to be center of figure (instead of top left)
                            var radius = fontSize * Math.SQRT2 / 2;
                            var offSet = radius / Math.SQRT2;
                            var centerX = x + offSet;
                            var centerY = y + offSet;

                            // Draw pointStyle as legend symbol
                            helpers.canvas.drawPoint(ctx, legendItem.pointStyle, radius, centerX, centerY);
                        } else {
                            // Draw box as legend symbol
                            if (!isLineWidthZero) {
                                ctx.strokeRect(x, y, boxWidth, fontSize);
                            }
                            ctx.fillRect(x, y, boxWidth, fontSize);
                        }

                        ctx.restore();
                    };
                    var fillText = function(x, y, legendItem, textWidth) {
                        var halfFontSize = fontSize / 2;
                        var xLeft = boxWidth + halfFontSize + x;
                        var yMiddle = y + halfFontSize;

                        ctx.fillText(legendItem.text, xLeft, yMiddle);

                        if (legendItem.hidden) {
                            // Strikethrough the text if hidden
                            ctx.beginPath();
                            ctx.lineWidth = 2;
                            ctx.moveTo(xLeft, yMiddle);
                            ctx.lineTo(xLeft + textWidth, yMiddle);
                            ctx.stroke();
                        }
                    };

                    // Horizontal
                    var isHorizontal = me.isHorizontal();
                    if (isHorizontal) {
                        cursor = {
                            x: me.left + ((legendWidth - lineWidths[0]) / 2),
                            y: me.top + labelOpts.padding,
                            line: 0
                        };
                    } else {
                        cursor = {
                            x: me.left + labelOpts.padding,
                            y: me.top + labelOpts.padding,
                            line: 0
                        };
                    }

                    var itemHeight = fontSize + labelOpts.padding;
                    helpers.each(me.legendItems, function(legendItem, i) {
                        var textWidth = ctx.measureText(legendItem.text).width;
                        var width = boxWidth + (fontSize / 2) + textWidth;
                        var x = cursor.x;
                        var y = cursor.y;

                        if (isHorizontal) {
                            if (x + width >= legendWidth) {
                                y = cursor.y += itemHeight;
                                cursor.line++;
                                x = cursor.x = me.left + ((legendWidth - lineWidths[cursor.line]) / 2);
                            }
                        } else if (y + itemHeight > me.bottom) {
                            x = cursor.x = x + me.columnWidths[cursor.line] + labelOpts.padding;
                            y = cursor.y = me.top + labelOpts.padding;
                            cursor.line++;
                        }

                        drawLegendBox(x, y, legendItem);

                        hitboxes[i].left = x;
                        hitboxes[i].top = y;

                        // Fill the actual label
                        fillText(x, y, legendItem, textWidth);

                        if (isHorizontal) {
                            cursor.x += width + (labelOpts.padding);
                        } else {
                            cursor.y += itemHeight;
                        }

                    });
                }
            },

            /**
             * Handle an event
             * @private
             * @param {IEvent} event - The event to handle
             * @return {Boolean} true if a change occured
             */
            handleEvent: function(e) {
                var me = this;
                var opts = me.options;
                var type = e.type === 'mouseup' ? 'click' : e.type;
                var changed = false;

                if (type === 'mousemove') {
                    if (!opts.onHover) {
                        return;
                    }
                } else if (type === 'click') {
                    if (!opts.onClick) {
                        return;
                    }
                } else {
                    return;
                }

                // Chart event already has relative position in it
                var x = e.x;
                var y = e.y;

                if (x >= me.left && x <= me.right && y >= me.top && y <= me.bottom) {
                    // See if we are touching one of the dataset boxes
                    var lh = me.legendHitBoxes;
                    for (var i = 0; i < lh.length; ++i) {
                        var hitBox = lh[i];

                        if (x >= hitBox.left && x <= hitBox.left + hitBox.width && y >= hitBox.top && y <= hitBox.top + hitBox.height) {
                            // Touching an element
                            if (type === 'click') {
                                // use e.native for backwards compatibility
                                opts.onClick.call(me, e.native, me.legendItems[i]);
                                changed = true;
                                break;
                            } else if (type === 'mousemove') {
                                // use e.native for backwards compatibility
                                opts.onHover.call(me, e.native, me.legendItems[i]);
                                changed = true;
                                break;
                            }
                        }
                    }
                }

                return changed;
            }
        });

        function createNewLegendAndAttach(chart, legendOpts) {
            var legend = new Legend({
                ctx: chart.ctx,
                options: legendOpts,
                chart: chart
            });

            layouts.configure(chart, legend, legendOpts);
            layouts.addBox(chart, legend);
            chart.legend = legend;
        }

        module.exports = {
            id: 'legend',

            /**
             * Backward compatibility: since 2.1.5, the legend is registered as a plugin, making
             * Chart.Legend obsolete. To avoid a breaking change, we export the Legend as part of
             * the plugin, which one will be re-exposed in the chart.js file.
             * https://github.com/chartjs/Chart.js/pull/2640
             * @private
             */
            _element: Legend,

            beforeInit: function(chart) {
                var legendOpts = chart.options.legend;

                if (legendOpts) {
                    createNewLegendAndAttach(chart, legendOpts);
                }
            },

            beforeUpdate: function(chart) {
                var legendOpts = chart.options.legend;
                var legend = chart.legend;

                if (legendOpts) {
                    helpers.mergeIf(legendOpts, defaults.global.legend);

                    if (legend) {
                        layouts.configure(chart, legend, legendOpts);
                        legend.options = legendOpts;
                    } else {
                        createNewLegendAndAttach(chart, legendOpts);
                    }
                } else if (legend) {
                    layouts.removeBox(chart, legend);
                    delete chart.legend;
                }
            },

            afterEvent: function(chart, e) {
                var legend = chart.legend;
                if (legend) {
                    legend.handleEvent(e);
                }
            }
        };

    },{"25":25,"26":26,"30":30,"45":45}],52:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var Element = require(26);
        var helpers = require(45);
        var layouts = require(30);

        var noop = helpers.noop;

        defaults._set('global', {
            title: {
                display: false,
                fontStyle: 'bold',
                fullWidth: true,
                lineHeight: 1.2,
                padding: 10,
                position: 'top',
                text: '',
                weight: 2000         // by default greater than legend (1000) to be above
            }
        });

        /**
         * IMPORTANT: this class is exposed publicly as Chart.Legend, backward compatibility required!
         */
        var Title = Element.extend({
            initialize: function(config) {
                var me = this;
                helpers.extend(me, config);

                // Contains hit boxes for each dataset (in dataset order)
                me.legendHitBoxes = [];
            },

            // These methods are ordered by lifecycle. Utilities then follow.

            beforeUpdate: noop,
            update: function(maxWidth, maxHeight, margins) {
                var me = this;

                // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
                me.beforeUpdate();

                // Absorb the master measurements
                me.maxWidth = maxWidth;
                me.maxHeight = maxHeight;
                me.margins = margins;

                // Dimensions
                me.beforeSetDimensions();
                me.setDimensions();
                me.afterSetDimensions();
                // Labels
                me.beforeBuildLabels();
                me.buildLabels();
                me.afterBuildLabels();

                // Fit
                me.beforeFit();
                me.fit();
                me.afterFit();
                //
                me.afterUpdate();

                return me.minSize;

            },
            afterUpdate: noop,

            //

            beforeSetDimensions: noop,
            setDimensions: function() {
                var me = this;
                // Set the unconstrained dimension before label rotation
                if (me.isHorizontal()) {
                    // Reset position before calculating rotation
                    me.width = me.maxWidth;
                    me.left = 0;
                    me.right = me.width;
                } else {
                    me.height = me.maxHeight;

                    // Reset position before calculating rotation
                    me.top = 0;
                    me.bottom = me.height;
                }

                // Reset padding
                me.paddingLeft = 0;
                me.paddingTop = 0;
                me.paddingRight = 0;
                me.paddingBottom = 0;

                // Reset minSize
                me.minSize = {
                    width: 0,
                    height: 0
                };
            },
            afterSetDimensions: noop,

            //

            beforeBuildLabels: noop,
            buildLabels: noop,
            afterBuildLabels: noop,

            //

            beforeFit: noop,
            fit: function() {
                var me = this;
                var valueOrDefault = helpers.valueOrDefault;
                var opts = me.options;
                var display = opts.display;
                var fontSize = valueOrDefault(opts.fontSize, defaults.global.defaultFontSize);
                var minSize = me.minSize;
                var lineCount = helpers.isArray(opts.text) ? opts.text.length : 1;
                var lineHeight = helpers.options.toLineHeight(opts.lineHeight, fontSize);
                var textSize = display ? (lineCount * lineHeight) + (opts.padding * 2) : 0;

                if (me.isHorizontal()) {
                    minSize.width = me.maxWidth; // fill all the width
                    minSize.height = textSize;
                } else {
                    minSize.width = textSize;
                    minSize.height = me.maxHeight; // fill all the height
                }

                me.width = minSize.width;
                me.height = minSize.height;

            },
            afterFit: noop,

            // Shared Methods
            isHorizontal: function() {
                var pos = this.options.position;
                return pos === 'top' || pos === 'bottom';
            },

            // Actually draw the title block on the canvas
            draw: function() {
                var me = this;
                var ctx = me.ctx;
                var valueOrDefault = helpers.valueOrDefault;
                var opts = me.options;
                var globalDefaults = defaults.global;

                if (opts.display) {
                    var fontSize = valueOrDefault(opts.fontSize, globalDefaults.defaultFontSize);
                    var fontStyle = valueOrDefault(opts.fontStyle, globalDefaults.defaultFontStyle);
                    var fontFamily = valueOrDefault(opts.fontFamily, globalDefaults.defaultFontFamily);
                    var titleFont = helpers.fontString(fontSize, fontStyle, fontFamily);
                    var lineHeight = helpers.options.toLineHeight(opts.lineHeight, fontSize);
                    var offset = lineHeight / 2 + opts.padding;
                    var rotation = 0;
                    var top = me.top;
                    var left = me.left;
                    var bottom = me.bottom;
                    var right = me.right;
                    var maxWidth, titleX, titleY;

                    ctx.fillStyle = valueOrDefault(opts.fontColor, globalDefaults.defaultFontColor); // render in correct colour
                    ctx.font = titleFont;

                    // Horizontal
                    if (me.isHorizontal()) {
                        titleX = left + ((right - left) / 2); // midpoint of the width
                        titleY = top + offset;
                        maxWidth = right - left;
                    } else {
                        titleX = opts.position === 'left' ? left + offset : right - offset;
                        titleY = top + ((bottom - top) / 2);
                        maxWidth = bottom - top;
                        rotation = Math.PI * (opts.position === 'left' ? -0.5 : 0.5);
                    }

                    ctx.save();
                    ctx.translate(titleX, titleY);
                    ctx.rotate(rotation);
                    ctx.textAlign = 'center';
                    ctx.textBaseline = 'middle';

                    var text = opts.text;
                    if (helpers.isArray(text)) {
                        var y = 0;
                        for (var i = 0; i < text.length; ++i) {
                            ctx.fillText(text[i], 0, y, maxWidth);
                            y += lineHeight;
                        }
                    } else {
                        ctx.fillText(text, 0, 0, maxWidth);
                    }

                    ctx.restore();
                }
            }
        });

        function createNewTitleBlockAndAttach(chart, titleOpts) {
            var title = new Title({
                ctx: chart.ctx,
                options: titleOpts,
                chart: chart
            });

            layouts.configure(chart, title, titleOpts);
            layouts.addBox(chart, title);
            chart.titleBlock = title;
        }

        module.exports = {
            id: 'title',

            /**
             * Backward compatibility: since 2.1.5, the title is registered as a plugin, making
             * Chart.Title obsolete. To avoid a breaking change, we export the Title as part of
             * the plugin, which one will be re-exposed in the chart.js file.
             * https://github.com/chartjs/Chart.js/pull/2640
             * @private
             */
            _element: Title,

            beforeInit: function(chart) {
                var titleOpts = chart.options.title;

                if (titleOpts) {
                    createNewTitleBlockAndAttach(chart, titleOpts);
                }
            },

            beforeUpdate: function(chart) {
                var titleOpts = chart.options.title;
                var titleBlock = chart.titleBlock;

                if (titleOpts) {
                    helpers.mergeIf(titleOpts, defaults.global.title);

                    if (titleBlock) {
                        layouts.configure(chart, titleBlock, titleOpts);
                        titleBlock.options = titleOpts;
                    } else {
                        createNewTitleBlockAndAttach(chart, titleOpts);
                    }
                } else if (titleBlock) {
                    layouts.removeBox(chart, titleBlock);
                    delete chart.titleBlock;
                }
            }
        };

    },{"25":25,"26":26,"30":30,"45":45}],53:[function(require,module,exports){
        'use strict';

        module.exports = function(Chart) {

            // Default config for a category scale
            var defaultConfig = {
                position: 'bottom'
            };

            var DatasetScale = Chart.Scale.extend({
                /**
                 * Internal function to get the correct labels. If data.xLabels or data.yLabels are defined, use those
                 * else fall back to data.labels
                 * @private
                 */
                getLabels: function() {
                    var data = this.chart.data;
                    return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels;
                },

                determineDataLimits: function() {
                    var me = this;
                    var labels = me.getLabels();
                    me.minIndex = 0;
                    me.maxIndex = labels.length - 1;
                    var findIndex;

                    if (me.options.ticks.min !== undefined) {
                        // user specified min value
                        findIndex = labels.indexOf(me.options.ticks.min);
                        me.minIndex = findIndex !== -1 ? findIndex : me.minIndex;
                    }

                    if (me.options.ticks.max !== undefined) {
                        // user specified max value
                        findIndex = labels.indexOf(me.options.ticks.max);
                        me.maxIndex = findIndex !== -1 ? findIndex : me.maxIndex;
                    }

                    me.min = labels[me.minIndex];
                    me.max = labels[me.maxIndex];
                },

                buildTicks: function() {
                    var me = this;
                    var labels = me.getLabels();
                    // If we are viewing some subset of labels, slice the original array
                    me.ticks = (me.minIndex === 0 && me.maxIndex === labels.length - 1) ? labels : labels.slice(me.minIndex, me.maxIndex + 1);
                },

                getLabelForIndex: function(index, datasetIndex) {
                    var me = this;
                    var data = me.chart.data;
                    var isHorizontal = me.isHorizontal();

                    if (data.yLabels && !isHorizontal) {
                        return me.getRightValue(data.datasets[datasetIndex].data[index]);
                    }
                    return me.ticks[index - me.minIndex];
                },

                // Used to get data value locations.  Value can either be an index or a numerical value
                getPixelForValue: function(value, index) {
                    var me = this;
                    var offset = me.options.offset;
                    // 1 is added because we need the length but we have the indexes
                    var offsetAmt = Math.max((me.maxIndex + 1 - me.minIndex - (offset ? 0 : 1)), 1);

                    // If value is a data object, then index is the index in the data array,
                    // not the index of the scale. We need to change that.
                    var valueCategory;
                    if (value !== undefined && value !== null) {
                        valueCategory = me.isHorizontal() ? value.x : value.y;
                    }
                    if (valueCategory !== undefined || (value !== undefined && isNaN(index))) {
                        var labels = me.getLabels();
                        value = valueCategory || value;
                        var idx = labels.indexOf(value);
                        index = idx !== -1 ? idx : index;
                    }

                    if (me.isHorizontal()) {
                        var valueWidth = me.width / offsetAmt;
                        var widthOffset = (valueWidth * (index - me.minIndex));

                        if (offset) {
                            widthOffset += (valueWidth / 2);
                        }

                        return me.left + Math.round(widthOffset);
                    }
                    var valueHeight = me.height / offsetAmt;
                    var heightOffset = (valueHeight * (index - me.minIndex));

                    if (offset) {
                        heightOffset += (valueHeight / 2);
                    }

                    return me.top + Math.round(heightOffset);
                },
                getPixelForTick: function(index) {
                    return this.getPixelForValue(this.ticks[index], index + this.minIndex, null);
                },
                getValueForPixel: function(pixel) {
                    var me = this;
                    var offset = me.options.offset;
                    var value;
                    var offsetAmt = Math.max((me._ticks.length - (offset ? 0 : 1)), 1);
                    var horz = me.isHorizontal();
                    var valueDimension = (horz ? me.width : me.height) / offsetAmt;

                    pixel -= horz ? me.left : me.top;

                    if (offset) {
                        pixel -= (valueDimension / 2);
                    }

                    if (pixel <= 0) {
                        value = 0;
                    } else {
                        value = Math.round(pixel / valueDimension);
                    }

                    return value + me.minIndex;
                },
                getBasePixel: function() {
                    return this.bottom;
                }
            });

            Chart.scaleService.registerScaleType('category', DatasetScale, defaultConfig);

        };

    },{}],54:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var helpers = require(45);
        var Ticks = require(34);

        module.exports = function(Chart) {

            var defaultConfig = {
                position: 'left',
                ticks: {
                    callback: Ticks.formatters.linear
                }
            };

            var LinearScale = Chart.LinearScaleBase.extend({

                determineDataLimits: function() {
                    var me = this;
                    var opts = me.options;
                    var chart = me.chart;
                    var data = chart.data;
                    var datasets = data.datasets;
                    var isHorizontal = me.isHorizontal();
                    var DEFAULT_MIN = 0;
                    var DEFAULT_MAX = 1;

                    function IDMatches(meta) {
                        return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
                    }

                    // First Calculate the range
                    me.min = null;
                    me.max = null;

                    var hasStacks = opts.stacked;
                    if (hasStacks === undefined) {
                        helpers.each(datasets, function(dataset, datasetIndex) {
                            if (hasStacks) {
                                return;
                            }

                            var meta = chart.getDatasetMeta(datasetIndex);
                            if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
                                meta.stack !== undefined) {
                                hasStacks = true;
                            }
                        });
                    }

                    if (opts.stacked || hasStacks) {
                        var valuesPerStack = {};

                        helpers.each(datasets, function(dataset, datasetIndex) {
                            var meta = chart.getDatasetMeta(datasetIndex);
                            var key = [
                                meta.type,
                                // we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
                                ((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''),
                                meta.stack
                            ].join('.');

                            if (valuesPerStack[key] === undefined) {
                                valuesPerStack[key] = {
                                    positiveValues: [],
                                    negativeValues: []
                                };
                            }

                            // Store these per type
                            var positiveValues = valuesPerStack[key].positiveValues;
                            var negativeValues = valuesPerStack[key].negativeValues;

                            if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
                                helpers.each(dataset.data, function(rawValue, index) {
                                    var value = +me.getRightValue(rawValue);
                                    if (isNaN(value) || meta.data[index].hidden) {
                                        return;
                                    }

                                    positiveValues[index] = positiveValues[index] || 0;
                                    negativeValues[index] = negativeValues[index] || 0;

                                    if (opts.relativePoints) {
                                        positiveValues[index] = 100;
                                    } else if (value < 0) {
                                        negativeValues[index] += value;
                                    } else {
                                        positiveValues[index] += value;
                                    }
                                });
                            }
                        });

                        helpers.each(valuesPerStack, function(valuesForType) {
                            var values = valuesForType.positiveValues.concat(valuesForType.negativeValues);
                            var minVal = helpers.min(values);
                            var maxVal = helpers.max(values);
                            me.min = me.min === null ? minVal : Math.min(me.min, minVal);
                            me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
                        });

                    } else {
                        helpers.each(datasets, function(dataset, datasetIndex) {
                            var meta = chart.getDatasetMeta(datasetIndex);
                            if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
                                helpers.each(dataset.data, function(rawValue, index) {
                                    var value = +me.getRightValue(rawValue);
                                    if (isNaN(value) || meta.data[index].hidden) {
                                        return;
                                    }

                                    if (me.min === null) {
                                        me.min = value;
                                    } else if (value < me.min) {
                                        me.min = value;
                                    }

                                    if (me.max === null) {
                                        me.max = value;
                                    } else if (value > me.max) {
                                        me.max = value;
                                    }
                                });
                            }
                        });
                    }

                    me.min = isFinite(me.min) && !isNaN(me.min) ? me.min : DEFAULT_MIN;
                    me.max = isFinite(me.max) && !isNaN(me.max) ? me.max : DEFAULT_MAX;

                    // Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
                    this.handleTickRangeOptions();
                },
                getTickLimit: function() {
                    var maxTicks;
                    var me = this;
                    var tickOpts = me.options.ticks;

                    if (me.isHorizontal()) {
                        maxTicks = Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(me.width / 50));
                    } else {
                        // The factor of 2 used to scale the font size has been experimentally determined.
                        var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, defaults.global.defaultFontSize);
                        maxTicks = Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(me.height / (2 * tickFontSize)));
                    }

                    return maxTicks;
                },
                // Called after the ticks are built. We need
                handleDirectionalChanges: function() {
                    if (!this.isHorizontal()) {
                        // We are in a vertical orientation. The top value is the highest. So reverse the array
                        this.ticks.reverse();
                    }
                },
                getLabelForIndex: function(index, datasetIndex) {
                    return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
                },
                // Utils
                getPixelForValue: function(value) {
                    // This must be called after fit has been run so that
                    // this.left, this.top, this.right, and this.bottom have been defined
                    var me = this;
                    var start = me.start;

                    var rightValue = +me.getRightValue(value);
                    var pixel;
                    var range = me.end - start;

                    if (me.isHorizontal()) {
                        pixel = me.left + (me.width / range * (rightValue - start));
                    } else {
                        pixel = me.bottom - (me.height / range * (rightValue - start));
                    }
                    return pixel;
                },
                getValueForPixel: function(pixel) {
                    var me = this;
                    var isHorizontal = me.isHorizontal();
                    var innerDimension = isHorizontal ? me.width : me.height;
                    var offset = (isHorizontal ? pixel - me.left : me.bottom - pixel) / innerDimension;
                    return me.start + ((me.end - me.start) * offset);
                },
                getPixelForTick: function(index) {
                    return this.getPixelForValue(this.ticksAsNumbers[index]);
                }
            });
            Chart.scaleService.registerScaleType('linear', LinearScale, defaultConfig);

        };

    },{"25":25,"34":34,"45":45}],55:[function(require,module,exports){
        'use strict';

        var helpers = require(45);

        /**
         * Generate a set of linear ticks
         * @param generationOptions the options used to generate the ticks
         * @param dataRange the range of the data
         * @returns {Array<Number>} array of tick values
         */
        function generateTicks(generationOptions, dataRange) {
            var ticks = [];
            // To get a "nice" value for the tick spacing, we will use the appropriately named
            // "nice number" algorithm. See http://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks
            // for details.

            var spacing;
            if (generationOptions.stepSize && generationOptions.stepSize > 0) {
                spacing = generationOptions.stepSize;
            } else {
                var niceRange = helpers.niceNum(dataRange.max - dataRange.min, false);
                spacing = helpers.niceNum(niceRange / (generationOptions.maxTicks - 1), true);
            }
            var niceMin = Math.floor(dataRange.min / spacing) * spacing;
            var niceMax = Math.ceil(dataRange.max / spacing) * spacing;

            // If min, max and stepSize is set and they make an evenly spaced scale use it.
            if (generationOptions.min && generationOptions.max && generationOptions.stepSize) {
                // If very close to our whole number, use it.
                if (helpers.almostWhole((generationOptions.max - generationOptions.min) / generationOptions.stepSize, spacing / 1000)) {
                    niceMin = generationOptions.min;
                    niceMax = generationOptions.max;
                }
            }

            var numSpaces = (niceMax - niceMin) / spacing;
            // If very close to our rounded value, use it.
            if (helpers.almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) {
                numSpaces = Math.round(numSpaces);
            } else {
                numSpaces = Math.ceil(numSpaces);
            }

            var precision = 1;
            if (spacing < 1) {
                precision = Math.pow(10, spacing.toString().length - 2);
                niceMin = Math.round(niceMin * precision) / precision;
                niceMax = Math.round(niceMax * precision) / precision;
            }
            ticks.push(generationOptions.min !== undefined ? generationOptions.min : niceMin);
            for (var j = 1; j < numSpaces; ++j) {
                ticks.push(Math.round((niceMin + j * spacing) * precision) / precision);
            }
            ticks.push(generationOptions.max !== undefined ? generationOptions.max : niceMax);

            return ticks;
        }


        module.exports = function(Chart) {

            var noop = helpers.noop;

            Chart.LinearScaleBase = Chart.Scale.extend({
                getRightValue: function(value) {
                    if (typeof value === 'string') {
                        return +value;
                    }
                    return Chart.Scale.prototype.getRightValue.call(this, value);
                },

                handleTickRangeOptions: function() {
                    var me = this;
                    var opts = me.options;
                    var tickOpts = opts.ticks;

                    // If we are forcing it to begin at 0, but 0 will already be rendered on the chart,
                    // do nothing since that would make the chart weird. If the user really wants a weird chart
                    // axis, they can manually override it
                    if (tickOpts.beginAtZero) {
                        var minSign = helpers.sign(me.min);
                        var maxSign = helpers.sign(me.max);

                        if (minSign < 0 && maxSign < 0) {
                            // move the top up to 0
                            me.max = 0;
                        } else if (minSign > 0 && maxSign > 0) {
                            // move the bottom down to 0
                            me.min = 0;
                        }
                    }

                    var setMin = tickOpts.min !== undefined || tickOpts.suggestedMin !== undefined;
                    var setMax = tickOpts.max !== undefined || tickOpts.suggestedMax !== undefined;

                    if (tickOpts.min !== undefined) {
                        me.min = tickOpts.min;
                    } else if (tickOpts.suggestedMin !== undefined) {
                        if (me.min === null) {
                            me.min = tickOpts.suggestedMin;
                        } else {
                            me.min = Math.min(me.min, tickOpts.suggestedMin);
                        }
                    }

                    if (tickOpts.max !== undefined) {
                        me.max = tickOpts.max;
                    } else if (tickOpts.suggestedMax !== undefined) {
                        if (me.max === null) {
                            me.max = tickOpts.suggestedMax;
                        } else {
                            me.max = Math.max(me.max, tickOpts.suggestedMax);
                        }
                    }

                    if (setMin !== setMax) {
                        // We set the min or the max but not both.
                        // So ensure that our range is good
                        // Inverted or 0 length range can happen when
                        // ticks.min is set, and no datasets are visible
                        if (me.min >= me.max) {
                            if (setMin) {
                                me.max = me.min + 1;
                            } else {
                                me.min = me.max - 1;
                            }
                        }
                    }

                    if (me.min === me.max) {
                        me.max++;

                        if (!tickOpts.beginAtZero) {
                            me.min--;
                        }
                    }
                },
                getTickLimit: noop,
                handleDirectionalChanges: noop,

                buildTicks: function() {
                    var me = this;
                    var opts = me.options;
                    var tickOpts = opts.ticks;

                    // Figure out what the max number of ticks we can support it is based on the size of
                    // the axis area. For now, we say that the minimum tick spacing in pixels must be 50
                    // We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
                    // the graph. Make sure we always have at least 2 ticks
                    var maxTicks = me.getTickLimit();
                    maxTicks = Math.max(2, maxTicks);

                    var numericGeneratorOptions = {
                        maxTicks: maxTicks,
                        min: tickOpts.min,
                        max: tickOpts.max,
                        stepSize: helpers.valueOrDefault(tickOpts.fixedStepSize, tickOpts.stepSize)
                    };
                    var ticks = me.ticks = generateTicks(numericGeneratorOptions, me);

                    me.handleDirectionalChanges();

                    // At this point, we need to update our max and min given the tick values since we have expanded the
                    // range of the scale
                    me.max = helpers.max(ticks);
                    me.min = helpers.min(ticks);

                    if (tickOpts.reverse) {
                        ticks.reverse();

                        me.start = me.max;
                        me.end = me.min;
                    } else {
                        me.start = me.min;
                        me.end = me.max;
                    }
                },
                convertTicksToLabels: function() {
                    var me = this;
                    me.ticksAsNumbers = me.ticks.slice();
                    me.zeroLineIndex = me.ticks.indexOf(0);

                    Chart.Scale.prototype.convertTicksToLabels.call(me);
                }
            });
        };

    },{"45":45}],56:[function(require,module,exports){
        'use strict';

        var helpers = require(45);
        var Ticks = require(34);

        /**
         * Generate a set of logarithmic ticks
         * @param generationOptions the options used to generate the ticks
         * @param dataRange the range of the data
         * @returns {Array<Number>} array of tick values
         */
        function generateTicks(generationOptions, dataRange) {
            var ticks = [];
            var valueOrDefault = helpers.valueOrDefault;

            // Figure out what the max number of ticks we can support it is based on the size of
            // the axis area. For now, we say that the minimum tick spacing in pixels must be 50
            // We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
            // the graph
            var tickVal = valueOrDefault(generationOptions.min, Math.pow(10, Math.floor(helpers.log10(dataRange.min))));

            var endExp = Math.floor(helpers.log10(dataRange.max));
            var endSignificand = Math.ceil(dataRange.max / Math.pow(10, endExp));
            var exp, significand;

            if (tickVal === 0) {
                exp = Math.floor(helpers.log10(dataRange.minNotZero));
                significand = Math.floor(dataRange.minNotZero / Math.pow(10, exp));

                ticks.push(tickVal);
                tickVal = significand * Math.pow(10, exp);
            } else {
                exp = Math.floor(helpers.log10(tickVal));
                significand = Math.floor(tickVal / Math.pow(10, exp));
            }
            var precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1;

            do {
                ticks.push(tickVal);

                ++significand;
                if (significand === 10) {
                    significand = 1;
                    ++exp;
                    precision = exp >= 0 ? 1 : precision;
                }

                tickVal = Math.round(significand * Math.pow(10, exp) * precision) / precision;
            } while (exp < endExp || (exp === endExp && significand < endSignificand));

            var lastTick = valueOrDefault(generationOptions.max, tickVal);
            ticks.push(lastTick);

            return ticks;
        }


        module.exports = function(Chart) {

            var defaultConfig = {
                position: 'left',

                // label settings
                ticks: {
                    callback: Ticks.formatters.logarithmic
                }
            };

            var LogarithmicScale = Chart.Scale.extend({
                determineDataLimits: function() {
                    var me = this;
                    var opts = me.options;
                    var chart = me.chart;
                    var data = chart.data;
                    var datasets = data.datasets;
                    var isHorizontal = me.isHorizontal();
                    function IDMatches(meta) {
                        return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
                    }

                    // Calculate Range
                    me.min = null;
                    me.max = null;
                    me.minNotZero = null;

                    var hasStacks = opts.stacked;
                    if (hasStacks === undefined) {
                        helpers.each(datasets, function(dataset, datasetIndex) {
                            if (hasStacks) {
                                return;
                            }

                            var meta = chart.getDatasetMeta(datasetIndex);
                            if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
                                meta.stack !== undefined) {
                                hasStacks = true;
                            }
                        });
                    }

                    if (opts.stacked || hasStacks) {
                        var valuesPerStack = {};

                        helpers.each(datasets, function(dataset, datasetIndex) {
                            var meta = chart.getDatasetMeta(datasetIndex);
                            var key = [
                                meta.type,
                                // we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
                                ((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''),
                                meta.stack
                            ].join('.');

                            if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
                                if (valuesPerStack[key] === undefined) {
                                    valuesPerStack[key] = [];
                                }

                                helpers.each(dataset.data, function(rawValue, index) {
                                    var values = valuesPerStack[key];
                                    var value = +me.getRightValue(rawValue);
                                    // invalid, hidden and negative values are ignored
                                    if (isNaN(value) || meta.data[index].hidden || value < 0) {
                                        return;
                                    }
                                    values[index] = values[index] || 0;
                                    values[index] += value;
                                });
                            }
                        });

                        helpers.each(valuesPerStack, function(valuesForType) {
                            if (valuesForType.length > 0) {
                                var minVal = helpers.min(valuesForType);
                                var maxVal = helpers.max(valuesForType);
                                me.min = me.min === null ? minVal : Math.min(me.min, minVal);
                                me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
                            }
                        });

                    } else {
                        helpers.each(datasets, function(dataset, datasetIndex) {
                            var meta = chart.getDatasetMeta(datasetIndex);
                            if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
                                helpers.each(dataset.data, function(rawValue, index) {
                                    var value = +me.getRightValue(rawValue);
                                    // invalid, hidden and negative values are ignored
                                    if (isNaN(value) || meta.data[index].hidden || value < 0) {
                                        return;
                                    }

                                    if (me.min === null) {
                                        me.min = value;
                                    } else if (value < me.min) {
                                        me.min = value;
                                    }

                                    if (me.max === null) {
                                        me.max = value;
                                    } else if (value > me.max) {
                                        me.max = value;
                                    }

                                    if (value !== 0 && (me.minNotZero === null || value < me.minNotZero)) {
                                        me.minNotZero = value;
                                    }
                                });
                            }
                        });
                    }

                    // Common base implementation to handle ticks.min, ticks.max
                    this.handleTickRangeOptions();
                },
                handleTickRangeOptions: function() {
                    var me = this;
                    var opts = me.options;
                    var tickOpts = opts.ticks;
                    var valueOrDefault = helpers.valueOrDefault;
                    var DEFAULT_MIN = 1;
                    var DEFAULT_MAX = 10;

                    me.min = valueOrDefault(tickOpts.min, me.min);
                    me.max = valueOrDefault(tickOpts.max, me.max);

                    if (me.min === me.max) {
                        if (me.min !== 0 && me.min !== null) {
                            me.min = Math.pow(10, Math.floor(helpers.log10(me.min)) - 1);
                            me.max = Math.pow(10, Math.floor(helpers.log10(me.max)) + 1);
                        } else {
                            me.min = DEFAULT_MIN;
                            me.max = DEFAULT_MAX;
                        }
                    }
                    if (me.min === null) {
                        me.min = Math.pow(10, Math.floor(helpers.log10(me.max)) - 1);
                    }
                    if (me.max === null) {
                        me.max = me.min !== 0
                            ? Math.pow(10, Math.floor(helpers.log10(me.min)) + 1)
                            : DEFAULT_MAX;
                    }
                    if (me.minNotZero === null) {
                        if (me.min > 0) {
                            me.minNotZero = me.min;
                        } else if (me.max < 1) {
                            me.minNotZero = Math.pow(10, Math.floor(helpers.log10(me.max)));
                        } else {
                            me.minNotZero = DEFAULT_MIN;
                        }
                    }
                },
                buildTicks: function() {
                    var me = this;
                    var opts = me.options;
                    var tickOpts = opts.ticks;
                    var reverse = !me.isHorizontal();

                    var generationOptions = {
                        min: tickOpts.min,
                        max: tickOpts.max
                    };
                    var ticks = me.ticks = generateTicks(generationOptions, me);

                    // At this point, we need to update our max and min given the tick values since we have expanded the
                    // range of the scale
                    me.max = helpers.max(ticks);
                    me.min = helpers.min(ticks);

                    if (tickOpts.reverse) {
                        reverse = !reverse;
                        me.start = me.max;
                        me.end = me.min;
                    } else {
                        me.start = me.min;
                        me.end = me.max;
                    }
                    if (reverse) {
                        ticks.reverse();
                    }
                },
                convertTicksToLabels: function() {
                    this.tickValues = this.ticks.slice();

                    Chart.Scale.prototype.convertTicksToLabels.call(this);
                },
                // Get the correct tooltip label
                getLabelForIndex: function(index, datasetIndex) {
                    return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
                },
                getPixelForTick: function(index) {
                    return this.getPixelForValue(this.tickValues[index]);
                },
                /**
                 * Returns the value of the first tick.
                 * @param {Number} value - The minimum not zero value.
                 * @return {Number} The first tick value.
                 * @private
                 */
                _getFirstTickValue: function(value) {
                    var exp = Math.floor(helpers.log10(value));
                    var significand = Math.floor(value / Math.pow(10, exp));

                    return significand * Math.pow(10, exp);
                },
                getPixelForValue: function(value) {
                    var me = this;
                    var reverse = me.options.ticks.reverse;
                    var log10 = helpers.log10;
                    var firstTickValue = me._getFirstTickValue(me.minNotZero);
                    var offset = 0;
                    var innerDimension, pixel, start, end, sign;

                    value = +me.getRightValue(value);
                    if (reverse) {
                        start = me.end;
                        end = me.start;
                        sign = -1;
                    } else {
                        start = me.start;
                        end = me.end;
                        sign = 1;
                    }
                    if (me.isHorizontal()) {
                        innerDimension = me.width;
                        pixel = reverse ? me.right : me.left;
                    } else {
                        innerDimension = me.height;
                        sign *= -1; // invert, since the upper-left corner of the canvas is at pixel (0, 0)
                        pixel = reverse ? me.top : me.bottom;
                    }
                    if (value !== start) {
                        if (start === 0) { // include zero tick
                            offset = helpers.getValueOrDefault(
                                me.options.ticks.fontSize,
                                Chart.defaults.global.defaultFontSize
                            );
                            innerDimension -= offset;
                            start = firstTickValue;
                        }
                        if (value !== 0) {
                            offset += innerDimension / (log10(end) - log10(start)) * (log10(value) - log10(start));
                        }
                        pixel += sign * offset;
                    }
                    return pixel;
                },
                getValueForPixel: function(pixel) {
                    var me = this;
                    var reverse = me.options.ticks.reverse;
                    var log10 = helpers.log10;
                    var firstTickValue = me._getFirstTickValue(me.minNotZero);
                    var innerDimension, start, end, value;

                    if (reverse) {
                        start = me.end;
                        end = me.start;
                    } else {
                        start = me.start;
                        end = me.end;
                    }
                    if (me.isHorizontal()) {
                        innerDimension = me.width;
                        value = reverse ? me.right - pixel : pixel - me.left;
                    } else {
                        innerDimension = me.height;
                        value = reverse ? pixel - me.top : me.bottom - pixel;
                    }
                    if (value !== start) {
                        if (start === 0) { // include zero tick
                            var offset = helpers.getValueOrDefault(
                                me.options.ticks.fontSize,
                                Chart.defaults.global.defaultFontSize
                            );
                            value -= offset;
                            innerDimension -= offset;
                            start = firstTickValue;
                        }
                        value *= log10(end) - log10(start);
                        value /= innerDimension;
                        value = Math.pow(10, log10(start) + value);
                    }
                    return value;
                }
            });
            Chart.scaleService.registerScaleType('logarithmic', LogarithmicScale, defaultConfig);

        };

    },{"34":34,"45":45}],57:[function(require,module,exports){
        'use strict';

        var defaults = require(25);
        var helpers = require(45);
        var Ticks = require(34);

        module.exports = function(Chart) {

            var globalDefaults = defaults.global;

            var defaultConfig = {
                display: true,

                // Boolean - Whether to animate scaling the chart from the centre
                animate: true,
                position: 'chartArea',

                angleLines: {
                    display: true,
                    color: 'rgba(0, 0, 0, 0.1)',
                    lineWidth: 1
                },

                gridLines: {
                    circular: false
                },

                // label settings
                ticks: {
                    // Boolean - Show a backdrop to the scale label
                    showLabelBackdrop: true,

                    // String - The colour of the label backdrop
                    backdropColor: 'rgba(255,255,255,0.75)',

                    // Number - The backdrop padding above & below the label in pixels
                    backdropPaddingY: 2,

                    // Number - The backdrop padding to the side of the label in pixels
                    backdropPaddingX: 2,

                    callback: Ticks.formatters.linear
                },

                pointLabels: {
                    // Boolean - if true, show point labels
                    display: true,

                    // Number - Point label font size in pixels
                    fontSize: 10,

                    // Function - Used to convert point labels
                    callback: function(label) {
                        return label;
                    }
                }
            };

            function getValueCount(scale) {
                var opts = scale.options;
                return opts.angleLines.display || opts.pointLabels.display ? scale.chart.data.labels.length : 0;
            }

            function getPointLabelFontOptions(scale) {
                var pointLabelOptions = scale.options.pointLabels;
                var fontSize = helpers.valueOrDefault(pointLabelOptions.fontSize, globalDefaults.defaultFontSize);
                var fontStyle = helpers.valueOrDefault(pointLabelOptions.fontStyle, globalDefaults.defaultFontStyle);
                var fontFamily = helpers.valueOrDefault(pointLabelOptions.fontFamily, globalDefaults.defaultFontFamily);
                var font = helpers.fontString(fontSize, fontStyle, fontFamily);

                return {
                    size: fontSize,
                    style: fontStyle,
                    family: fontFamily,
                    font: font
                };
            }

            function measureLabelSize(ctx, fontSize, label) {
                if (helpers.isArray(label)) {
                    return {
                        w: helpers.longestText(ctx, ctx.font, label),
                        h: (label.length * fontSize) + ((label.length - 1) * 1.5 * fontSize)
                    };
                }

                return {
                    w: ctx.measureText(label).width,
                    h: fontSize
                };
            }

            function determineLimits(angle, pos, size, min, max) {
                if (angle === min || angle === max) {
                    return {
                        start: pos - (size / 2),
                        end: pos + (size / 2)
                    };
                } else if (angle < min || angle > max) {
                    return {
                        start: pos - size - 5,
                        end: pos
                    };
                }

                return {
                    start: pos,
                    end: pos + size + 5
                };
            }

            /**
             * Helper function to fit a radial linear scale with point labels
             */
            function fitWithPointLabels(scale) {
                /*
		 * Right, this is really confusing and there is a lot of maths going on here
		 * The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9
		 *
		 * Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif
		 *
		 * Solution:
		 *
		 * We assume the radius of the polygon is half the size of the canvas at first
		 * at each index we check if the text overlaps.
		 *
		 * Where it does, we store that angle and that index.
		 *
		 * After finding the largest index and angle we calculate how much we need to remove
		 * from the shape radius to move the point inwards by that x.
		 *
		 * We average the left and right distances to get the maximum shape radius that can fit in the box
		 * along with labels.
		 *
		 * Once we have that, we can find the centre point for the chart, by taking the x text protrusion
		 * on each side, removing that from the size, halving it and adding the left x protrusion width.
		 *
		 * This will mean we have a shape fitted to the canvas, as large as it can be with the labels
		 * and position it in the most space efficient manner
		 *
		 * https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif
		 */

                var plFont = getPointLabelFontOptions(scale);

                // Get maximum radius of the polygon. Either half the height (minus the text width) or half the width.
                // Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points
                var largestPossibleRadius = Math.min(scale.height / 2, scale.width / 2);
                var furthestLimits = {
                    r: scale.width,
                    l: 0,
                    t: scale.height,
                    b: 0
                };
                var furthestAngles = {};
                var i, textSize, pointPosition;

                scale.ctx.font = plFont.font;
                scale._pointLabelSizes = [];

                var valueCount = getValueCount(scale);
                for (i = 0; i < valueCount; i++) {
                    pointPosition = scale.getPointPosition(i, largestPossibleRadius);
                    textSize = measureLabelSize(scale.ctx, plFont.size, scale.pointLabels[i] || '');
                    scale._pointLabelSizes[i] = textSize;

                    // Add quarter circle to make degree 0 mean top of circle
                    var angleRadians = scale.getIndexAngle(i);
                    var angle = helpers.toDegrees(angleRadians) % 360;
                    var hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180);
                    var vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270);

                    if (hLimits.start < furthestLimits.l) {
                        furthestLimits.l = hLimits.start;
                        furthestAngles.l = angleRadians;
                    }

                    if (hLimits.end > furthestLimits.r) {
                        furthestLimits.r = hLimits.end;
                        furthestAngles.r = angleRadians;
                    }

                    if (vLimits.start < furthestLimits.t) {
                        furthestLimits.t = vLimits.start;
                        furthestAngles.t = angleRadians;
                    }

                    if (vLimits.end > furthestLimits.b) {
                        furthestLimits.b = vLimits.end;
                        furthestAngles.b = angleRadians;
                    }
                }

                scale.setReductions(largestPossibleRadius, furthestLimits, furthestAngles);
            }

            /**
             * Helper function to fit a radial linear scale with no point labels
             */
            function fit(scale) {
                var largestPossibleRadius = Math.min(scale.height / 2, scale.width / 2);
                scale.drawingArea = Math.round(largestPossibleRadius);
                scale.setCenterPoint(0, 0, 0, 0);
            }

            function getTextAlignForAngle(angle) {
                if (angle === 0 || angle === 180) {
                    return 'center';
                } else if (angle < 180) {
                    return 'left';
                }

                return 'right';
            }

            function fillText(ctx, text, position, fontSize) {
                if (helpers.isArray(text)) {
                    var y = position.y;
                    var spacing = 1.5 * fontSize;

                    for (var i = 0; i < text.length; ++i) {
                        ctx.fillText(text[i], position.x, y);
                        y += spacing;
                    }
                } else {
                    ctx.fillText(text, position.x, position.y);
                }
            }

            function adjustPointPositionForLabelHeight(angle, textSize, position) {
                if (angle === 90 || angle === 270) {
                    position.y -= (textSize.h / 2);
                } else if (angle > 270 || angle < 90) {
                    position.y -= textSize.h;
                }
            }

            function drawPointLabels(scale) {
                var ctx = scale.ctx;
                var opts = scale.options;
                var angleLineOpts = opts.angleLines;
                var pointLabelOpts = opts.pointLabels;

                ctx.lineWidth = angleLineOpts.lineWidth;
                ctx.strokeStyle = angleLineOpts.color;

                var outerDistance = scale.getDistanceFromCenterForValue(opts.ticks.reverse ? scale.min : scale.max);

                // Point Label Font
                var plFont = getPointLabelFontOptions(scale);

                ctx.textBaseline = 'top';

                for (var i = getValueCount(scale) - 1; i >= 0; i--) {
                    if (angleLineOpts.display) {
                        var outerPosition = scale.getPointPosition(i, outerDistance);
                        ctx.beginPath();
                        ctx.moveTo(scale.xCenter, scale.yCenter);
                        ctx.lineTo(outerPosition.x, outerPosition.y);
                        ctx.stroke();
                        ctx.closePath();
                    }

                    if (pointLabelOpts.display) {
                        // Extra 3px out for some label spacing
                        var pointLabelPosition = scale.getPointPosition(i, outerDistance + 5);

                        // Keep this in loop since we may support array properties here
                        var pointLabelFontColor = helpers.valueAtIndexOrDefault(pointLabelOpts.fontColor, i, globalDefaults.defaultFontColor);
                        ctx.font = plFont.font;
                        ctx.fillStyle = pointLabelFontColor;

                        var angleRadians = scale.getIndexAngle(i);
                        var angle = helpers.toDegrees(angleRadians);
                        ctx.textAlign = getTextAlignForAngle(angle);
                        adjustPointPositionForLabelHeight(angle, scale._pointLabelSizes[i], pointLabelPosition);
                        fillText(ctx, scale.pointLabels[i] || '', pointLabelPosition, plFont.size);
                    }
                }
            }

            function drawRadiusLine(scale, gridLineOpts, radius, index) {
                var ctx = scale.ctx;
                ctx.strokeStyle = helpers.valueAtIndexOrDefault(gridLineOpts.color, index - 1);
                ctx.lineWidth = helpers.valueAtIndexOrDefault(gridLineOpts.lineWidth, index - 1);

                if (scale.options.gridLines.circular) {
                    // Draw circular arcs between the points
                    ctx.beginPath();
                    ctx.arc(scale.xCenter, scale.yCenter, radius, 0, Math.PI * 2);
                    ctx.closePath();
                    ctx.stroke();
                } else {
                    // Draw straight lines connecting each index
                    var valueCount = getValueCount(scale);

                    if (valueCount === 0) {
                        return;
                    }

                    ctx.beginPath();
                    var pointPosition = scale.getPointPosition(0, radius);
                    ctx.moveTo(pointPosition.x, pointPosition.y);

                    for (var i = 1; i < valueCount; i++) {
                        pointPosition = scale.getPointPosition(i, radius);
                        ctx.lineTo(pointPosition.x, pointPosition.y);
                    }

                    ctx.closePath();
                    ctx.stroke();
                }
            }

            function numberOrZero(param) {
                return helpers.isNumber(param) ? param : 0;
            }

            var LinearRadialScale = Chart.LinearScaleBase.extend({
                setDimensions: function() {
                    var me = this;
                    var opts = me.options;
                    var tickOpts = opts.ticks;
                    // Set the unconstrained dimension before label rotation
                    me.width = me.maxWidth;
                    me.height = me.maxHeight;
                    me.xCenter = Math.round(me.width / 2);
                    me.yCenter = Math.round(me.height / 2);

                    var minSize = helpers.min([me.height, me.width]);
                    var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
                    me.drawingArea = opts.display ? (minSize / 2) - (tickFontSize / 2 + tickOpts.backdropPaddingY) : (minSize / 2);
                },
                determineDataLimits: function() {
                    var me = this;
                    var chart = me.chart;
                    var min = Number.POSITIVE_INFINITY;
                    var max = Number.NEGATIVE_INFINITY;

                    helpers.each(chart.data.datasets, function(dataset, datasetIndex) {
                        if (chart.isDatasetVisible(datasetIndex)) {
                            var meta = chart.getDatasetMeta(datasetIndex);

                            helpers.each(dataset.data, function(rawValue, index) {
                                var value = +me.getRightValue(rawValue);
                                if (isNaN(value) || meta.data[index].hidden) {
                                    return;
                                }

                                min = Math.min(value, min);
                                max = Math.max(value, max);
                            });
                        }
                    });

                    me.min = (min === Number.POSITIVE_INFINITY ? 0 : min);
                    me.max = (max === Number.NEGATIVE_INFINITY ? 0 : max);

                    // Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
                    me.handleTickRangeOptions();
                },
                getTickLimit: function() {
                    var tickOpts = this.options.ticks;
                    var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
                    return Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(this.drawingArea / (1.5 * tickFontSize)));
                },
                convertTicksToLabels: function() {
                    var me = this;

                    Chart.LinearScaleBase.prototype.convertTicksToLabels.call(me);

                    // Point labels
                    me.pointLabels = me.chart.data.labels.map(me.options.pointLabels.callback, me);
                },
                getLabelForIndex: function(index, datasetIndex) {
                    return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
                },
                fit: function() {
                    if (this.options.pointLabels.display) {
                        fitWithPointLabels(this);
                    } else {
                        fit(this);
                    }
                },
                /**
                 * Set radius reductions and determine new radius and center point
                 * @private
                 */
                setReductions: function(largestPossibleRadius, furthestLimits, furthestAngles) {
                    var me = this;
                    var radiusReductionLeft = furthestLimits.l / Math.sin(furthestAngles.l);
                    var radiusReductionRight = Math.max(furthestLimits.r - me.width, 0) / Math.sin(furthestAngles.r);
                    var radiusReductionTop = -furthestLimits.t / Math.cos(furthestAngles.t);
                    var radiusReductionBottom = -Math.max(furthestLimits.b - me.height, 0) / Math.cos(furthestAngles.b);

                    radiusReductionLeft = numberOrZero(radiusReductionLeft);
                    radiusReductionRight = numberOrZero(radiusReductionRight);
                    radiusReductionTop = numberOrZero(radiusReductionTop);
                    radiusReductionBottom = numberOrZero(radiusReductionBottom);

                    me.drawingArea = Math.min(
                        Math.round(largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2),
                        Math.round(largestPossibleRadius - (radiusReductionTop + radiusReductionBottom) / 2));
                    me.setCenterPoint(radiusReductionLeft, radiusReductionRight, radiusReductionTop, radiusReductionBottom);
                },
                setCenterPoint: function(leftMovement, rightMovement, topMovement, bottomMovement) {
                    var me = this;
                    var maxRight = me.width - rightMovement - me.drawingArea;
                    var maxLeft = leftMovement + me.drawingArea;
                    var maxTop = topMovement + me.drawingArea;
                    var maxBottom = me.height - bottomMovement - me.drawingArea;

                    me.xCenter = Math.round(((maxLeft + maxRight) / 2) + me.left);
                    me.yCenter = Math.round(((maxTop + maxBottom) / 2) + me.top);
                },

                getIndexAngle: function(index) {
                    var angleMultiplier = (Math.PI * 2) / getValueCount(this);
                    var startAngle = this.chart.options && this.chart.options.startAngle ?
                        this.chart.options.startAngle :
                        0;

                    var startAngleRadians = startAngle * Math.PI * 2 / 360;

                    // Start from the top instead of right, so remove a quarter of the circle
                    return index * angleMultiplier + startAngleRadians;
                },
                getDistanceFromCenterForValue: function(value) {
                    var me = this;

                    if (value === null) {
                        return 0; // null always in center
                    }

                    // Take into account half font size + the yPadding of the top value
                    var scalingFactor = me.drawingArea / (me.max - me.min);
                    if (me.options.ticks.reverse) {
                        return (me.max - value) * scalingFactor;
                    }
                    return (value - me.min) * scalingFactor;
                },
                getPointPosition: function(index, distanceFromCenter) {
                    var me = this;
                    var thisAngle = me.getIndexAngle(index) - (Math.PI / 2);
                    return {
                        x: Math.round(Math.cos(thisAngle) * distanceFromCenter) + me.xCenter,
                        y: Math.round(Math.sin(thisAngle) * distanceFromCenter) + me.yCenter
                    };
                },
                getPointPositionForValue: function(index, value) {
                    return this.getPointPosition(index, this.getDistanceFromCenterForValue(value));
                },

                getBasePosition: function() {
                    var me = this;
                    var min = me.min;
                    var max = me.max;

                    return me.getPointPositionForValue(0,
                        me.beginAtZero ? 0 :
                            min < 0 && max < 0 ? max :
                                min > 0 && max > 0 ? min :
                                    0);
                },

                draw: function() {
                    var me = this;
                    var opts = me.options;
                    var gridLineOpts = opts.gridLines;
                    var tickOpts = opts.ticks;
                    var valueOrDefault = helpers.valueOrDefault;

                    if (opts.display) {
                        var ctx = me.ctx;
                        var startAngle = this.getIndexAngle(0);

                        // Tick Font
                        var tickFontSize = valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
                        var tickFontStyle = valueOrDefault(tickOpts.fontStyle, globalDefaults.defaultFontStyle);
                        var tickFontFamily = valueOrDefault(tickOpts.fontFamily, globalDefaults.defaultFontFamily);
                        var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily);

                        helpers.each(me.ticks, function(label, index) {
                            // Don't draw a centre value (if it is minimum)
                            if (index > 0 || tickOpts.reverse) {
                                var yCenterOffset = me.getDistanceFromCenterForValue(me.ticksAsNumbers[index]);

                                // Draw circular lines around the scale
                                if (gridLineOpts.display && index !== 0) {
                                    drawRadiusLine(me, gridLineOpts, yCenterOffset, index);
                                }

                                if (tickOpts.display) {
                                    var tickFontColor = valueOrDefault(tickOpts.fontColor, globalDefaults.defaultFontColor);
                                    ctx.font = tickLabelFont;

                                    ctx.save();
                                    ctx.translate(me.xCenter, me.yCenter);
                                    ctx.rotate(startAngle);

                                    if (tickOpts.showLabelBackdrop) {
                                        var labelWidth = ctx.measureText(label).width;
                                        ctx.fillStyle = tickOpts.backdropColor;
                                        ctx.fillRect(
                                            -labelWidth / 2 - tickOpts.backdropPaddingX,
                                            -yCenterOffset - tickFontSize / 2 - tickOpts.backdropPaddingY,
                                            labelWidth + tickOpts.backdropPaddingX * 2,
                                            tickFontSize + tickOpts.backdropPaddingY * 2
                                        );
                                    }

                                    ctx.textAlign = 'center';
                                    ctx.textBaseline = 'middle';
                                    ctx.fillStyle = tickFontColor;
                                    ctx.fillText(label, 0, -yCenterOffset);
                                    ctx.restore();
                                }
                            }
                        });

                        if (opts.angleLines.display || opts.pointLabels.display) {
                            drawPointLabels(me);
                        }
                    }
                }
            });
            Chart.scaleService.registerScaleType('radialLinear', LinearRadialScale, defaultConfig);

        };

    },{"25":25,"34":34,"45":45}],58:[function(require,module,exports){
        /* global window: false */
        'use strict';

        var moment = require(6);
        moment = typeof moment === 'function' ? moment : window.moment;

        var defaults = require(25);
        var helpers = require(45);

// Integer constants are from the ES6 spec.
        var MIN_INTEGER = Number.MIN_SAFE_INTEGER || -9007199254740991;
        var MAX_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991;

        var INTERVALS = {
            millisecond: {
                common: true,
                size: 1,
                steps: [1, 2, 5, 10, 20, 50, 100, 250, 500]
            },
            second: {
                common: true,
                size: 1000,
                steps: [1, 2, 5, 10, 30]
            },
            minute: {
                common: true,
                size: 60000,
                steps: [1, 2, 5, 10, 30]
            },
            hour: {
                common: true,
                size: 3600000,
                steps: [1, 2, 3, 6, 12]
            },
            day: {
                common: true,
                size: 86400000,
                steps: [1, 2, 5]
            },
            week: {
                common: false,
                size: 604800000,
                steps: [1, 2, 3, 4]
            },
            month: {
                common: true,
                size: 2.628e9,
                steps: [1, 2, 3]
            },
            quarter: {
                common: false,
                size: 7.884e9,
                steps: [1, 2, 3, 4]
            },
            year: {
                common: true,
                size: 3.154e10
            }
        };

        var UNITS = Object.keys(INTERVALS);

        function sorter(a, b) {
            return a - b;
        }

        function arrayUnique(items) {
            var hash = {};
            var out = [];
            var i, ilen, item;

            for (i = 0, ilen = items.length; i < ilen; ++i) {
                item = items[i];
                if (!hash[item]) {
                    hash[item] = true;
                    out.push(item);
                }
            }

            return out;
        }

        /**
         * Returns an array of {time, pos} objects used to interpolate a specific `time` or position
         * (`pos`) on the scale, by searching entries before and after the requested value. `pos` is
         * a decimal between 0 and 1: 0 being the start of the scale (left or top) and 1 the other
         * extremity (left + width or top + height). Note that it would be more optimized to directly
         * store pre-computed pixels, but the scale dimensions are not guaranteed at the time we need
         * to create the lookup table. The table ALWAYS contains at least two items: min and max.
         *
         * @param {Number[]} timestamps - timestamps sorted from lowest to highest.
         * @param {String} distribution - If 'linear', timestamps will be spread linearly along the min
         * and max range, so basically, the table will contains only two items: {min, 0} and {max, 1}.
         * If 'series', timestamps will be positioned at the same distance from each other. In this
         * case, only timestamps that break the time linearity are registered, meaning that in the
         * best case, all timestamps are linear, the table contains only min and max.
         */
        function buildLookupTable(timestamps, min, max, distribution) {
            if (distribution === 'linear' || !timestamps.length) {
                return [
                    {time: min, pos: 0},
                    {time: max, pos: 1}
                ];
            }

            var table = [];
            var items = [min];
            var i, ilen, prev, curr, next;

            for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
                curr = timestamps[i];
                if (curr > min && curr < max) {
                    items.push(curr);
                }
            }

            items.push(max);

            for (i = 0, ilen = items.length; i < ilen; ++i) {
                next = items[i + 1];
                prev = items[i - 1];
                curr = items[i];

                // only add points that breaks the scale linearity
                if (prev === undefined || next === undefined || Math.round((next + prev) / 2) !== curr) {
                    table.push({time: curr, pos: i / (ilen - 1)});
                }
            }

            return table;
        }

// @see adapted from http://www.anujgakhar.com/2014/03/01/binary-search-in-javascript/
        function lookup(table, key, value) {
            var lo = 0;
            var hi = table.length - 1;
            var mid, i0, i1;

            while (lo >= 0 && lo <= hi) {
                mid = (lo + hi) >> 1;
                i0 = table[mid - 1] || null;
                i1 = table[mid];

                if (!i0) {
                    // given value is outside table (before first item)
                    return {lo: null, hi: i1};
                } else if (i1[key] < value) {
                    lo = mid + 1;
                } else if (i0[key] > value) {
                    hi = mid - 1;
                } else {
                    return {lo: i0, hi: i1};
                }
            }

            // given value is outside table (after last item)
            return {lo: i1, hi: null};
        }

        /**
         * Linearly interpolates the given source `value` using the table items `skey` values and
         * returns the associated `tkey` value. For example, interpolate(table, 'time', 42, 'pos')
         * returns the position for a timestamp equal to 42. If value is out of bounds, values at
         * index [0, 1] or [n - 1, n] are used for the interpolation.
         */
        function interpolate(table, skey, sval, tkey) {
            var range = lookup(table, skey, sval);

            // Note: the lookup table ALWAYS contains at least 2 items (min and max)
            var prev = !range.lo ? table[0] : !range.hi ? table[table.length - 2] : range.lo;
            var next = !range.lo ? table[1] : !range.hi ? table[table.length - 1] : range.hi;

            var span = next[skey] - prev[skey];
            var ratio = span ? (sval - prev[skey]) / span : 0;
            var offset = (next[tkey] - prev[tkey]) * ratio;

            return prev[tkey] + offset;
        }

        /**
         * Convert the given value to a moment object using the given time options.
         * @see http://momentjs.com/docs/#/parsing/
         */
        function momentify(value, options) {
            var parser = options.parser;
            var format = options.parser || options.format;

            if (typeof parser === 'function') {
                return parser(value);
            }

            if (typeof value === 'string' && typeof format === 'string') {
                return moment(value, format);
            }

            if (!(value instanceof moment)) {
                value = moment(value);
            }

            if (value.isValid()) {
                return value;
            }

            // Labels are in an incompatible moment format and no `parser` has been provided.
            // The user might still use the deprecated `format` option to convert his inputs.
            if (typeof format === 'function') {
                return format(value);
            }

            return value;
        }

        function parse(input, scale) {
            if (helpers.isNullOrUndef(input)) {
                return null;
            }

            var options = scale.options.time;
            var value = momentify(scale.getRightValue(input), options);
            if (!value.isValid()) {
                return null;
            }

            if (options.round) {
                value.startOf(options.round);
            }

            return value.valueOf();
        }

        /**
         * Returns the number of unit to skip to be able to display up to `capacity` number of ticks
         * in `unit` for the given `min` / `max` range and respecting the interval steps constraints.
         */
        function determineStepSize(min, max, unit, capacity) {
            var range = max - min;
            var interval = INTERVALS[unit];
            var milliseconds = interval.size;
            var steps = interval.steps;
            var i, ilen, factor;

            if (!steps) {
                return Math.ceil(range / (capacity * milliseconds));
            }

            for (i = 0, ilen = steps.length; i < ilen; ++i) {
                factor = steps[i];
                if (Math.ceil(range / (milliseconds * factor)) <= capacity) {
                    break;
                }
            }

            return factor;
        }

        /**
         * Figures out what unit results in an appropriate number of auto-generated ticks
         */
        function determineUnitForAutoTicks(minUnit, min, max, capacity) {
            var ilen = UNITS.length;
            var i, interval, factor;

            for (i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) {
                interval = INTERVALS[UNITS[i]];
                factor = interval.steps ? interval.steps[interval.steps.length - 1] : MAX_INTEGER;

                if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) {
                    return UNITS[i];
                }
            }

            return UNITS[ilen - 1];
        }

        /**
         * Figures out what unit to format a set of ticks with
         */
        function determineUnitForFormatting(ticks, minUnit, min, max) {
            var duration = moment.duration(moment(max).diff(moment(min)));
            var ilen = UNITS.length;
            var i, unit;

            for (i = ilen - 1; i >= UNITS.indexOf(minUnit); i--) {
                unit = UNITS[i];
                if (INTERVALS[unit].common && duration.as(unit) >= ticks.length) {
                    return unit;
                }
            }

            return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0];
        }

        function determineMajorUnit(unit) {
            for (var i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) {
                if (INTERVALS[UNITS[i]].common) {
                    return UNITS[i];
                }
            }
        }

        /**
         * Generates a maximum of `capacity` timestamps between min and max, rounded to the
         * `minor` unit, aligned on the `major` unit and using the given scale time `options`.
         * Important: this method can return ticks outside the min and max range, it's the
         * responsibility of the calling code to clamp values if needed.
         */
        function generate(min, max, capacity, options) {
            var timeOpts = options.time;
            var minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, capacity);
            var major = determineMajorUnit(minor);
            var stepSize = helpers.valueOrDefault(timeOpts.stepSize, timeOpts.unitStepSize);
            var weekday = minor === 'week' ? timeOpts.isoWeekday : false;
            var majorTicksEnabled = options.ticks.major.enabled;
            var interval = INTERVALS[minor];
            var first = moment(min);
            var last = moment(max);
            var ticks = [];
            var time;

            if (!stepSize) {
                stepSize = determineStepSize(min, max, minor, capacity);
            }

            // For 'week' unit, handle the first day of week option
            if (weekday) {
                first = first.isoWeekday(weekday);
                last = last.isoWeekday(weekday);
            }

            // Align first/last ticks on unit
            first = first.startOf(weekday ? 'day' : minor);
            last = last.startOf(weekday ? 'day' : minor);

            // Make sure that the last tick include max
            if (last < max) {
                last.add(1, minor);
            }

            time = moment(first);

            if (majorTicksEnabled && major && !weekday && !timeOpts.round) {
                // Align the first tick on the previous `minor` unit aligned on the `major` unit:
                // we first aligned time on the previous `major` unit then add the number of full
                // stepSize there is between first and the previous major time.
                time.startOf(major);
                time.add(~~((first - time) / (interval.size * stepSize)) * stepSize, minor);
            }

            for (; time < last; time.add(stepSize, minor)) {
                ticks.push(+time);
            }

            ticks.push(+time);

            return ticks;
        }

        /**
         * Returns the right and left offsets from edges in the form of {left, right}.
         * Offsets are added when the `offset` option is true.
         */
        function computeOffsets(table, ticks, min, max, options) {
            var left = 0;
            var right = 0;
            var upper, lower;

            if (options.offset && ticks.length) {
                if (!options.time.min) {
                    upper = ticks.length > 1 ? ticks[1] : max;
                    lower = ticks[0];
                    left = (
                        interpolate(table, 'time', upper, 'pos') -
                        interpolate(table, 'time', lower, 'pos')
                    ) / 2;
                }
                if (!options.time.max) {
                    upper = ticks[ticks.length - 1];
                    lower = ticks.length > 1 ? ticks[ticks.length - 2] : min;
                    right = (
                        interpolate(table, 'time', upper, 'pos') -
                        interpolate(table, 'time', lower, 'pos')
                    ) / 2;
                }
            }

            return {left: left, right: right};
        }

        function ticksFromTimestamps(values, majorUnit) {
            var ticks = [];
            var i, ilen, value, major;

            for (i = 0, ilen = values.length; i < ilen; ++i) {
                value = values[i];
                major = majorUnit ? value === +moment(value).startOf(majorUnit) : false;

                ticks.push({
                    value: value,
                    major: major
                });
            }

            return ticks;
        }

        function determineLabelFormat(data, timeOpts) {
            var i, momentDate, hasTime;
            var ilen = data.length;

            // find the label with the most parts (milliseconds, minutes, etc.)
            // format all labels with the same level of detail as the most specific label
            for (i = 0; i < ilen; i++) {
                momentDate = momentify(data[i], timeOpts);
                if (momentDate.millisecond() !== 0) {
                    return 'MMM D, YYYY h:mm:ss.SSS a';
                }
                if (momentDate.second() !== 0 || momentDate.minute() !== 0 || momentDate.hour() !== 0) {
                    hasTime = true;
                }
            }
            if (hasTime) {
                return 'MMM D, YYYY h:mm:ss a';
            }
            return 'MMM D, YYYY';
        }

        module.exports = function(Chart) {

            var defaultConfig = {
                position: 'bottom',

                /**
                 * Data distribution along the scale:
                 * - 'linear': data are spread according to their time (distances can vary),
                 * - 'series': data are spread at the same distance from each other.
                 * @see https://github.com/chartjs/Chart.js/pull/4507
                 * @since 2.7.0
                 */
                distribution: 'linear',

                /**
                 * Scale boundary strategy (bypassed by min/max time options)
                 * - `data`: make sure data are fully visible, ticks outside are removed
                 * - `ticks`: make sure ticks are fully visible, data outside are truncated
                 * @see https://github.com/chartjs/Chart.js/pull/4556
                 * @since 2.7.0
                 */
                bounds: 'data',

                time: {
                    parser: false, // false == a pattern string from http://momentjs.com/docs/#/parsing/string-format/ or a custom callback that converts its argument to a moment
                    format: false, // DEPRECATED false == date objects, moment object, callback or a pattern string from http://momentjs.com/docs/#/parsing/string-format/
                    unit: false, // false == automatic or override with week, month, year, etc.
                    round: false, // none, or override with week, month, year, etc.
                    displayFormat: false, // DEPRECATED
                    isoWeekday: false, // override week start day - see http://momentjs.com/docs/#/get-set/iso-weekday/
                    minUnit: 'millisecond',

                    // defaults to unit's corresponding unitFormat below or override using pattern string from http://momentjs.com/docs/#/displaying/format/
                    displayFormats: {
                        millisecond: 'h:mm:ss.SSS a', // 11:20:01.123 AM,
                        second: 'h:mm:ss a', // 11:20:01 AM
                        minute: 'h:mm a', // 11:20 AM
                        hour: 'hA', // 5PM
                        day: 'MMM D', // Sep 4
                        week: 'll', // Week 46, or maybe "[W]WW - YYYY" ?
                        month: 'MMM YYYY', // Sept 2015
                        quarter: '[Q]Q - YYYY', // Q3
                        year: 'YYYY' // 2015
                    },
                },
                ticks: {
                    autoSkip: false,

                    /**
                     * Ticks generation input values:
                     * - 'auto': generates "optimal" ticks based on scale size and time options.
                     * - 'data': generates ticks from data (including labels from data {t|x|y} objects).
                     * - 'labels': generates ticks from user given `data.labels` values ONLY.
                     * @see https://github.com/chartjs/Chart.js/pull/4507
                     * @since 2.7.0
                     */
                    source: 'auto',

                    major: {
                        enabled: false
                    }
                }
            };

            var TimeScale = Chart.Scale.extend({
                initialize: function() {
                    if (!moment) {
                        throw new Error('Chart.js - Moment.js could not be found! You must include it before Chart.js to use the time scale. Download at https://momentjs.com');
                    }

                    this.mergeTicksOptions();

                    Chart.Scale.prototype.initialize.call(this);
                },

                update: function() {
                    var me = this;
                    var options = me.options;

                    // DEPRECATIONS: output a message only one time per update
                    if (options.time && options.time.format) {
                        console.warn('options.time.format is deprecated and replaced by options.time.parser.');
                    }

                    return Chart.Scale.prototype.update.apply(me, arguments);
                },

                /**
                 * Allows data to be referenced via 't' attribute
                 */
                getRightValue: function(rawValue) {
                    if (rawValue && rawValue.t !== undefined) {
                        rawValue = rawValue.t;
                    }
                    return Chart.Scale.prototype.getRightValue.call(this, rawValue);
                },

                determineDataLimits: function() {
                    var me = this;
                    var chart = me.chart;
                    var timeOpts = me.options.time;
                    var unit = timeOpts.unit || 'day';
                    var min = MAX_INTEGER;
                    var max = MIN_INTEGER;
                    var timestamps = [];
                    var datasets = [];
                    var labels = [];
                    var i, j, ilen, jlen, data, timestamp;

                    // Convert labels to timestamps
                    for (i = 0, ilen = chart.data.labels.length; i < ilen; ++i) {
                        labels.push(parse(chart.data.labels[i], me));
                    }

                    // Convert data to timestamps
                    for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
                        if (chart.isDatasetVisible(i)) {
                            data = chart.data.datasets[i].data;

                            // Let's consider that all data have the same format.
                            if (helpers.isObject(data[0])) {
                                datasets[i] = [];

                                for (j = 0, jlen = data.length; j < jlen; ++j) {
                                    timestamp = parse(data[j], me);
                                    timestamps.push(timestamp);
                                    datasets[i][j] = timestamp;
                                }
                            } else {
                                timestamps.push.apply(timestamps, labels);
                                datasets[i] = labels.slice(0);
                            }
                        } else {
                            datasets[i] = [];
                        }
                    }

                    if (labels.length) {
                        // Sort labels **after** data have been converted
                        labels = arrayUnique(labels).sort(sorter);
                        min = Math.min(min, labels[0]);
                        max = Math.max(max, labels[labels.length - 1]);
                    }

                    if (timestamps.length) {
                        timestamps = arrayUnique(timestamps).sort(sorter);
                        min = Math.min(min, timestamps[0]);
                        max = Math.max(max, timestamps[timestamps.length - 1]);
                    }

                    min = parse(timeOpts.min, me) || min;
                    max = parse(timeOpts.max, me) || max;

                    // In case there is no valid min/max, set limits based on unit time option
                    min = min === MAX_INTEGER ? +moment().startOf(unit) : min;
                    max = max === MIN_INTEGER ? +moment().endOf(unit) + 1 : max;

                    // Make sure that max is strictly higher than min (required by the lookup table)
                    me.min = Math.min(min, max);
                    me.max = Math.max(min + 1, max);

                    // PRIVATE
                    me._horizontal = me.isHorizontal();
                    me._table = [];
                    me._timestamps = {
                        data: timestamps,
                        datasets: datasets,
                        labels: labels
                    };
                },

                buildTicks: function() {
                    var me = this;
                    var min = me.min;
                    var max = me.max;
                    var options = me.options;
                    var timeOpts = options.time;
                    var timestamps = [];
                    var ticks = [];
                    var i, ilen, timestamp;

                    switch (options.ticks.source) {
                        case 'data':
                            timestamps = me._timestamps.data;
                            break;
                        case 'labels':
                            timestamps = me._timestamps.labels;
                            break;
                        case 'auto':
                        default:
                            timestamps = generate(min, max, me.getLabelCapacity(min), options);
                    }

                    if (options.bounds === 'ticks' && timestamps.length) {
                        min = timestamps[0];
                        max = timestamps[timestamps.length - 1];
                    }

                    // Enforce limits with user min/max options
                    min = parse(timeOpts.min, me) || min;
                    max = parse(timeOpts.max, me) || max;

                    // Remove ticks outside the min/max range
                    for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
                        timestamp = timestamps[i];
                        if (timestamp >= min && timestamp <= max) {
                            ticks.push(timestamp);
                        }
                    }

                    me.min = min;
                    me.max = max;

                    // PRIVATE
                    me._unit = timeOpts.unit || determineUnitForFormatting(ticks, timeOpts.minUnit, me.min, me.max);
                    me._majorUnit = determineMajorUnit(me._unit);
                    me._table = buildLookupTable(me._timestamps.data, min, max, options.distribution);
                    me._offsets = computeOffsets(me._table, ticks, min, max, options);
                    me._labelFormat = determineLabelFormat(me._timestamps.data, timeOpts);

                    return ticksFromTimestamps(ticks, me._majorUnit);
                },

                getLabelForIndex: function(index, datasetIndex) {
                    var me = this;
                    var data = me.chart.data;
                    var timeOpts = me.options.time;
                    var label = data.labels && index < data.labels.length ? data.labels[index] : '';
                    var value = data.datasets[datasetIndex].data[index];

                    if (helpers.isObject(value)) {
                        label = me.getRightValue(value);
                    }
                    if (timeOpts.tooltipFormat) {
                        return momentify(label, timeOpts).format(timeOpts.tooltipFormat);
                    }
                    if (typeof label === 'string') {
                        return label;
                    }

                    return momentify(label, timeOpts).format(me._labelFormat);
                },

                /**
                 * Function to format an individual tick mark
                 * @private
                 */
                tickFormatFunction: function(tick, index, ticks, formatOverride) {
                    var me = this;
                    var options = me.options;
                    var time = tick.valueOf();
                    var formats = options.time.displayFormats;
                    var minorFormat = formats[me._unit];
                    var majorUnit = me._majorUnit;
                    var majorFormat = formats[majorUnit];
                    var majorTime = tick.clone().startOf(majorUnit).valueOf();
                    var majorTickOpts = options.ticks.major;
                    var major = majorTickOpts.enabled && majorUnit && majorFormat && time === majorTime;
                    var label = tick.format(formatOverride ? formatOverride : major ? majorFormat : minorFormat);
                    var tickOpts = major ? majorTickOpts : options.ticks.minor;
                    var formatter = helpers.valueOrDefault(tickOpts.callback, tickOpts.userCallback);

                    return formatter ? formatter(label, index, ticks) : label;
                },

                convertTicksToLabels: function(ticks) {
                    var labels = [];
                    var i, ilen;

                    for (i = 0, ilen = ticks.length; i < ilen; ++i) {
                        labels.push(this.tickFormatFunction(moment(ticks[i].value), i, ticks));
                    }

                    return labels;
                },

                /**
                 * @private
                 */
                getPixelForOffset: function(time) {
                    var me = this;
                    var size = me._horizontal ? me.width : me.height;
                    var start = me._horizontal ? me.left : me.top;
                    var pos = interpolate(me._table, 'time', time, 'pos');

                    return start + size * (me._offsets.left + pos) / (me._offsets.left + 1 + me._offsets.right);
                },

                getPixelForValue: function(value, index, datasetIndex) {
                    var me = this;
                    var time = null;

                    if (index !== undefined && datasetIndex !== undefined) {
                        time = me._timestamps.datasets[datasetIndex][index];
                    }

                    if (time === null) {
                        time = parse(value, me);
                    }

                    if (time !== null) {
                        return me.getPixelForOffset(time);
                    }
                },

                getPixelForTick: function(index) {
                    var ticks = this.getTicks();
                    return index >= 0 && index < ticks.length ?
                        this.getPixelForOffset(ticks[index].value) :
                        null;
                },

                getValueForPixel: function(pixel) {
                    var me = this;
                    var size = me._horizontal ? me.width : me.height;
                    var start = me._horizontal ? me.left : me.top;
                    var pos = (size ? (pixel - start) / size : 0) * (me._offsets.left + 1 + me._offsets.left) - me._offsets.right;
                    var time = interpolate(me._table, 'pos', pos, 'time');

                    return moment(time);
                },

                /**
                 * Crude approximation of what the label width might be
                 * @private
                 */
                getLabelWidth: function(label) {
                    var me = this;
                    var ticksOpts = me.options.ticks;
                    var tickLabelWidth = me.ctx.measureText(label).width;
                    var angle = helpers.toRadians(ticksOpts.maxRotation);
                    var cosRotation = Math.cos(angle);
                    var sinRotation = Math.sin(angle);
                    var tickFontSize = helpers.valueOrDefault(ticksOpts.fontSize, defaults.global.defaultFontSize);

                    return (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation);
                },

                /**
                 * @private
                 */
                getLabelCapacity: function(exampleTime) {
                    var me = this;

                    var formatOverride = me.options.time.displayFormats.millisecond;	// Pick the longest format for guestimation

                    var exampleLabel = me.tickFormatFunction(moment(exampleTime), 0, [], formatOverride);
                    var tickLabelWidth = me.getLabelWidth(exampleLabel);
                    var innerWidth = me.isHorizontal() ? me.width : me.height;

                    var capacity = Math.floor(innerWidth / tickLabelWidth);
                    return capacity > 0 ? capacity : 1;
                }
            });

            Chart.scaleService.registerScaleType('time', TimeScale, defaultConfig);
        };

    },{"25":25,"45":45,"6":6}]},{},[7])(7)
});