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Re: st: How to drop some Observation in Stata, if they are out ofrange?


From   Neil Shephard <nshephard@nhs.net>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: How to drop some Observation in Stata, if they are out ofrange?
Date   Tue, 23 Sep 2008 10:14:00 +0100

bumbuminc wrote:
Thanks for your answer,
but the problem is i don't now the min and max values. I want to drop
the observations if they are under 2.5% and over 97.5% of the maximum
earnings.
Boris
This would have been useful to state in your original question!

Its not that hard though...

sysuse auto, clear
centile price, centile(2.5)
local min = r(c_1)
centile price, centile(97.5)
local max = r(c_1)
gen restrictedprice = price if(price > `min' & price < `max')

Its general etiquette on Statalist to reply to the list rather than individuals as it means that the archives then contain complete solutions to problems which are then searchable by others.

Neil


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