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. As it is often the case that the dependent variable
series is a transformation of another original data series (eg log), it
would be helpful if the fitted series displayed in log values could be
retrieved to preclude the necessity for creating a new variable and
manually entering the data for subsequent reconversion to the original
unlogged fitted values.
Perhaps there is an option to do this but I cannot see where it might be.
Advice appreciated
Brian
Brian J Revell
Professor Emeritus
Harper Adams University , Shropshire
Current Chair of Defra Economic Advisory Panel
Tel 01952 815237
Tel: +44 1952 728153
Mbl +44 7976 538712
University: +44 1952 815235
alt: email: bjrevell(a)harper-adams.ac.uk