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st: RE: count


From   "Herrnstadt, Evan" <[email protected]>
To   <[email protected]>
Subject   st: RE: count
Date   Fri, 12 Oct 2007 17:02:34 -0400

Tina,

Try this:

sort year
by year: gen count = _N

Best,
Evan Herrnstadt

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Tina
Hernandez-Boussard
Sent: Friday, October 12, 2007 4:37 PM
To: [email protected]
Subject: st: count

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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