forecast 8.0

February 28, 2017

(This article was first published on R on Rob J Hyndman, and kindly contributed to R-bloggers)

In what is now a roughly annual event, the forecast package has been updated on CRAN with a new version, this time 8.0.
A few of the more important new features are described below.
Check residuals A common task when building forecasting models is to check that the residuals satisfy some assumptions (that they are uncorrelated, normally distributed, etc.). The new function checkresiduals makes this very easy: it produces a time plot, an ACF, a histogram with super-imposed normal curve, and does a Ljung-Box test on the residuals with appropriate number of lags and degrees of freedom.

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