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Re: st: -collapse- command


From   Abhimanyu Arora <abhimanyu.arora1987@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: -collapse- command
Date   Wed, 16 Jun 2010 18:14:59 +0200

I see, thanks very much, Neil.
Best regards
Abhimanyu

On Wed, Jun 16, 2010 at 5:39 PM, Neil Shephard <nshephard@gmail.com> wrote:
> On Wed, Jun 16, 2010 at 3:32 PM, Abhimanyu Arora
> <abhimanyu.arora1987@gmail.com> wrote:
>> Dear statalist
>>
>> I have 4 variables country, year,type of riot, no. of riots and would
>> like to finally have country, year, riots where riots are sum across
>> all types.
>> I tried using collapse country city (sum) riots, by (year) but get a
>> type mismatch error. Any suggestions?
>
> collapse (sum) total_riots=riots, by(country year)
>
> If you also have 'city' and want it by that as well then
>
> collapse (sum) total_riots=riots, by(country city year)
>
> See -man collapse- for the full syntax for the -collapse- command. If
> you don't understand the syntax diagram then read -man language-.
>
>
> Neil
>
>
> --
> "... no scientific worker has a fixed level of significance at which
> from year to year, and in all circumstances, he rejects hypotheses; he
> rather gives his mind to each particular case in the light of his
> evidence and his ideas." - Sir Ronald A. Fisher (1956)
>
> Email - nshephard@gmail.com
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