st: specifying j in Xijt

[Kremena Platikanova <Kremena.Platikanova@colorado.edu>]

Hi,

I have panel data of the form Xijt. I use
iis [varnamei]
iit [varnamet]
to specify the variables corresponding to the indeces i and t, respectively.

But how do I specify the variable corresponding to the index j?

Thank you.

Kremena

--
Kremena Platikanova
Ph.D. Candidate
Department of Economics
University of Colorado, Boulder
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