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Re: st: Re: Deleting Only Particular Observations


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Re: Deleting Only Particular Observations
Date   Wed, 1 Jul 2009 22:51:40 +0200

<>

Dear namesake: See solution posted a couple of minutes ago. http://www.stata.com/statalist/archive/2009-07/msg00042.html


Statalisters: What is the reasoning behind the prohibition to use -by- and -in- in the same statement?

HTH
Martin
_______________________
----- Original Message ----- From: "Christian Weiß" <christian.weiss@ebs.edu>
To: <statalist@hsphsun2.harvard.edu>
Sent: Wednesday, July 01, 2009 10:47 PM
Subject: Re: st: Re: Deleting Only Particular Observations


Dear Martin,

thank's a lot - unfortunately, my Stata does not like this solution..

. by country: keep in -100/l
'in' may not be combined with 'by'






On Wed, Jul 1, 2009 at 10:40 PM, Martin Weiss<martin.weiss1@gmx.de> wrote:
<>

sort country size
by country: keep in -100/l


HTH
Martin
_______________________
----- Original Message -----
From: "Christian Weiß" <christian.weiss@ebs.edu>
To: <statalist@hsphsun2.harvard.edu>
Sent: Wednesday, July 01, 2009 10:24 PM
Subject: st: Deleting Only Particular Observations


Dear Statalist,

Variable size contains the marketcap of about 2000 firms from 11
countries (grouping var country).

I would like to keep only the 100 biggest firms (by marketcap) from
each country, and delete the residual observations.

How can I accomplish this?

Best regards
Christian
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