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st: Delete companies based on observations


From   "M@rk " <[email protected]>
To   "Statalist" <[email protected]>
Subject   st: Delete companies based on observations
Date   Wed, 13 Nov 2013 10:48:43 +0100

Dear Users,

For my research I need to delete all companies of which I have equal or less than 13 observations. I already tried the following commands, without the desired result.

drop if _n<=13, by(comnam)

drop if comnam[_n]<=13

I assume that the count funtion in Stata can help me to delete these companies, but I do not know how to incorporate this in a command in order to do the deletions.

If somebody could help me with this, I would be very grateful.


Many thanks in advance.


Kind Regards,

Mark Krap
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