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RE: st: Keeping specific observations
From
Afif Naeem <[email protected]>
To
<[email protected]>
Subject
RE: st: Keeping specific observations
Date
Fri, 31 Aug 2012 12:46:52 -0400
Shouldnt "drop if v1 == . " work?
Afif
> From: [email protected]
> To: [email protected]
> Date: Fri, 31 Aug 2012 17:43:47 +0100
> Subject: st: Keeping specific observations
>
> Dear Statalisters,
>
> I would appreciate your help with the following conundrum. Assume I have a dataset that looks like this:
>
> Year ID v1
> 2000 1 2
> 2001 1 2
> 2002 1 3
> 2000 2 3
> 2001 2 .
> 2002 2 3
> 2000 3 .
> 2001 3 .
> 2002 3 .
>
> What I want to achieve is to only keep those individuals that appear with any non-missing values for v1 for any of the years in the dataset.
>
> In other words, I don't think that a command: "keep if v1<." would do, because that would also take out the 2001 observation for the second individual (ID==2), which I'd like to remain in place.
>
> Any ideas are welcome,
> Eleimon
>
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