--- Nada Wasi <[email protected]> wrote:
> I guess you need to interact "practice" with other
> variables, say x, which vary within doctorid, i.e.
>
> clogit referred x x*practice, group(doctorid)
Thank you, but this will not work for me. All
covariates are doctor specific, that is they do not
vary by doctor.
Best,
Ricardo
=====
Ricardo Ovaldia, MS
Statistician
Oklahoma City, OK
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