Correlogram
===========

Visualize variables' auto-correlation.

**Inputs**

- Time series: Time series as output by [As Timeseries](as_timeseries.md) widget.

In this widget, you can visualize the autocorrelation coefficients for the selected time series.

![](images/correlogram-stamped.png)

1. Select the series to calculate autocorrelation for.
2. See the autocorrelation coefficients.
3. Choose to calculate the coefficients using partial autocorrelation function (PACF) instead.
4. Choose to plot the 95% significance interval (dotted horizontal line). Coefficients that are outside of this interval might be significant.

#### See also

[Periodogram](periodogram.md)
