EViews.com

Perhaps you should explain in more detail what you're trying to do.

we know that eviews can do forecast . Can eviews do backcast in ARIMA models?? If yes, how can eviews do it? thanks!

If you are referring to dynamic models (e.g. ARIMA), then you'll need a little trick. Since backcasting is essentially a forecasting backwards from the initial point, you can reverse the order of data:

Code: Select all

series rev = @trend sort(d) rev

Depends on what you mean by backcast. But in general, you can set the forecast sample to be anything, including periods pre-estimation sample.

No.

Although EViews will plot the spectrum implied by estimated ARMA coefficients.

EViews does not have spectral analysis built in.