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st: count


From   Tina Hernandez-Boussard <boussard@stanford.edu>
To   statalist@hsphsun2.harvard.edu
Subject   st: count
Date   Fri, 12 Oct 2007 13:37:22 -0700

Hi All,

I am trying to get a count of procedures at a hospital by year and store this number.

In SAS I can do this:

proc freq data=tmp noprint; tables year * hospid / out=t_tmp; run;


I am trying to use count in stata, but I am unable to store count of hospitals by year. I get the count of hospitals by year with this command

by hospid: count if year == 1999

Any help??

Thanks

Tina
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