I want to collapse a large number of variables by tract, i.e.
. collapse (sum) _all, by(tract)
Naturally, stata complains that tract is included in _all:
tract may not be both target and by()
r(198);
Any clever way around that? Perhaps defining a macro that excludes one
name? I could type it all in, but this procedure has to be repeated for
many datafiles with different varlists (but which include tract).
Cheers.
Caleb
Dr. Caleb Southworth, Ph.D
American Council of Learned Societies Research Fellow 2002-03
Assistant Professor
Department of Sociology
1291 University of Oregon
Eugene OR 97403
Work: (541) 346-5034
Fax: (541) 346-5026
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