David Moore
> One problem,
> however, is that SAS
> allows variable arrays and I believe these still do not
> exist in Stata. You
> can program around this, of course, but that's not a simple
> matter of
> converting from one language to another. Those with Stata
> 7 will benefit
> from the "new" looping commands. Those of us who still
> can't afford to
> upgrade must resort to -while- loops.
Stata does not have arrays as such. But see the FAQ
http://www.stata.com/support/faqs/data/arrays.html
(which predates Stata 7) and add to it the facilities of -foreach- and
-forvalues- and then the question -- for those
who know both SAS and Stata -- is what can
be done easily or with a little effort in SAS
which is difficult or impossible in Stata? (The reverse
question might interest some people, of course, but is not
mine.)
Nick
n.j.cox@durham.ac.uk
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