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Re: st: Drop observations of groups with 0 as critical value
From
Nick Cox <[email protected]>
To
[email protected]
Subject
Re: st: Drop observations of groups with 0 as critical value
Date
Sat, 4 Jun 2011 15:59:52 +0100
egen anyzero = total(debtratio == 0), by(gvkey)
drop if anyzero
Nick
Felix/Achmed Aldai
> Below find an extract of my data set.
>
>
> gvkey debtratio
> 1001 0,2
> 1001 0,23
> 1001 0,23
> 1001 0,23
> 1001 0,25
> 1200 0,05
> 1200 0
> 1200 0
> 1200 0
>
>
> I want to drop all the firms that have a zero debtratio. Meaning that once the debtratio becomes 0 I want to drop all the observations of this company (gvkey). So in the end I should only be left with firms that all have a nonzero debtratio.
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