On Tue, 17 Aug 2021, Brian Revell wrote:
While the forecast GUI option with OLS and ARIMA provides a
printable
table of actual, fitted and residual, I can see no way of retrieving and
adding the fitted/residuals as seperate series in the data file from
the Analysis option.
It's not under the Analysis menu, but try the Save menu: that offers
fitted values and residuals.
Allin Cottrell