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Re: st: Drop subjects from a panel


From   Ayman Farahat <ayman.farahat@yahoo.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Drop subjects from a panel
Date   Wed, 8 Feb 2012 13:28:29 -0800 (PST)

Thanks Klauss; 

One question : Wouldnt this just remove the observation at time==2 while leaving the observations at different times?
Ayman



----- Original Message -----
From: Klaus Pforr <kpforr@googlemail.com>
To: statalist@hsphsun2.harvard.edu
Cc: 
Sent: Wednesday, February 8, 2012 12:52 PM
Subject: Re: st: Drop subjects from a panel

<>

Hello Ayman,

try
<drop if covariate==0 & time==2>

best

Klaus

Am 08.02.2012 21:36, schrieb Ayman Farahat:
> Hello ;
>
>   I have a panel data. I would like to remove all subjects that had a certain co-variate at a specific time.
>
> For example, drop all subjects that had a covariate==0 for time==2.
> Any help greatly appreciated.
>
> Thanks
> Ayman
>
>
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-- 
__________________________________

Klaus Pforr
MZES AB - A
Universität Mannheim
D - 68131 Mannheim
Tel:  +49-621-181 2797
fax:  +49-621-181 2803
URL:  http://www.mzes.uni-mannheim.de

Besucheranschrift: A5, Raum A309
__________________________________

*
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