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st: RE: By: "by varlist1 (varlist2) , how to perform command by varlist2)
From
"Dr. Martin Weiss" <[email protected]>
To
<[email protected]>
Subject
st: RE: By: "by varlist1 (varlist2) , how to perform command by varlist2)
Date
Mon, 2 Aug 2010 22:09:06 +0200
<>
To be honest, I do not understand your question. Maybe you can give a concrete example. In the meantime, note that -bysort- can perform the -sort- operation for you. Also read up on the whole issue in NJC`s http://www.stata-journal.com/sjpdf.html?articlenum=pr0004
HTH
Martin
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Dilip Pandey
Sent: Montag, 2. August 2010 21:08
To: [email protected]
Subject: st: By: "by varlist1 (varlist2) , how to perform command by varlist2)
Dear Statalist;
I am STATA 11 user.
I have sorted my data as -
sort varlist1 (varlist2) (varlist3) (varlist4)
Now I want to perform STATA command: thru_dt[_n+1) - from_dt[_n] by
varlist2 (not varlist1, keeping sort order performed earlier)
with STATA command:
by varlist1 (varlist2): gen x = thru_dt[_n+1) - from_dt[_n]
STATA verifies that data are sorted by varlist 1 varlist2 and performs
command by varlist1.
I will highly appreciate suggestion on "How to perform STATA command
for varlist2 in above situation.
Thanks.
Dilip
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