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st: Average when -inrange()-

From   Joseph Monte <>
To   statalist <>
Subject   st: Average when -inrange()-
Date   Thu, 17 Nov 2011 22:06:27 +0000

Dear Statalisters,

The code below gives me the number of observations (i.e. count1) when
"date2" occurs between two dates - "ninetydaysbefore" and "date1" -
based on "group". I also need the average of another variable called
"price" of the observations that are counted. I am not sure how to
incorporate it within the loop below.

sort group date2
gen count1=.
qui forval i = 1/`=_N'{
    count if group==group[`i'] & inrange(date2,ninetydaysbefore[`i'],date1[`i'])
	replace count1 = r(N) in `i'

I am using Stata 12.


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