Number of cross sections in panel data

[Quant]

Is there any way to find the number of cross-sections for a sample in a panel worksheet with unbalanced data? Eviews reports the number of observations in the upper part near the sample but not the associated cross-sections. A simple way is to regress a key variable on a constant and from the reg window I can get the required data. Is there another way? Thanks in advance.

[EViews Gareth]

Do a one-way tabulation on the cross-section identifier, and see how many categories there are. In a program:

Code: Select all

series temp = @crossid freeze(temp2, mode = overwrite) temp.freq %temp = temp2(5,1) string b = %temp %temp2 = @mid(%temp, 23) string a = %temp2 scalar n_cross_sections = @val(%temp2)

[Quant]

Thanks a lot for the prompt reply!!!