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Re: st: collapse _all by


From   Fred Wolfe <fwolfe@arthritis-research.org>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: collapse _all by
Date   Sun, 22 Sep 2002 18:48:04 -0500

At 05:50 PM 9/22/2002 -0700, you wrote:
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?
Check out -order- to move tract to the front. The collapse var2-varlast, by(tract(.

Fred Wolfe




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Fred Wolfe Tel (316) 263-2125
National Data Bank for Rheumatic Diseases Fax (316) 263-0761
Wichita, Kansas fwolfe@arthritis-research.org
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