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AW: st: a specific data management question
From
"Martin Weiss" <[email protected]>
To
<[email protected]>
Subject
AW: st: a specific data management question
Date
Wed, 11 Aug 2010 09:13:24 +0200
<>
I think this code comes closer to Grace`s wishes, as the maximum was not
really requested, but a count:
*************
clear
input firm tag
1 0
1 0
1 1
1 1
1 3
2 0
2 1
2 2
2 3
3 0
3 0
end
egen tag1 = total(tag==1), by(firm)
l, sepby(firm) noo
*************
As always, http://www.stata-journal.com/sjpdf.html?articlenum=pr0004 is the
best source...
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Michael N.
Mitchell
Gesendet: Mittwoch, 11. August 2010 06:27
An: [email protected]
Betreff: Re: st: a specific data management question
How about this...
clear
input firm tag
1 0
1 0
1 1
1 1
1 3
2 0
2 1
2 2
2 3
3 0
3 0
end
egen tag1 = max(tag==1), by(firm)
However, note that this gives a value of 0 if all values of tag are . for a
given firm.
Hope this helps,
Michael N. Mitchell
Data Management Using Stata - http://www.stata.com/bookstore/dmus.html
A Visual Guide to Stata Graphics - http://www.stata.com/bookstore/vgsg.html
Stata tidbit of the week - http://www.MichaelNormanMitchell.com
On 2010-08-10 8.50 PM, Grace Jessie wrote:
> firm tag
> 1 0
> 1 0
> 1 1
> 1 1
> 1 3
> 2 0
> 2 1
> 2 2
> 2 3
> 3 0
> 3 0
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