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The problem is that it is selecting the "empty model" as the best model in your case for these countries (and in the other cases it is selecting the GUM). But the empty model is non-valid.

You could get around it by using the "noempty" option to not include the empty model.

I tried running default settings, and it seemed to go through every country: %list = @wflookup("dp*") %list = @replace(%list, "DP", "") for %temp {%list} equation tmp_model{%temp}.varsel(method=auto) dp{%temp} @ c dp{%temp}(-1) dp{%temp}(-2) dp{%temp}(-3) dp{%temp}(-4) ...

Presumably %temp is changing in some sort of loop - what's it equal to when the program fails?

Any chance you could provide the workfile?

Could you provide an example?

Show off.

Not at the moment.

Create a series equal to @date on the daily page. Copy it over to the monthly page using "first" as the frequency conversion. Then copy it again using "last" as the frequency conversion. That will give you a series of the dates of the first workday and last weekday of each month.

I'd do it just by creating a temporary monthly page.

Where L1 is the sum of the absolute values, and L2 is the square root of the sum of the squares.

It is not currently supported by EViews.

Have you tried saving it to somewhere other than onedrive?