October 2017
Beginner to intermediate
572 pages
26h 1m
English
The autocorrelation function, is very important if you want to find the interrelationship between time series using the lagged values. The acf function will plot the correlation between all pairs of data points with lagged values. The plot will have two horizontal blue dashed lines at -0.2 and 0.2, representing the upper and lower bounds. If auto-correlation coefficients are close to zero, this means that there is no relationship, so time series are also known as white noise.
Read now
Unlock full access