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st: count

From   Tina Hernandez-Boussard <>
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??


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