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st: string variable


From   "Fabian Schönenberger" <sch.f@gmx.ch>
To   statalist@hsphsun2.harvard.edu
Subject   st: string variable
Date   Fri, 03 Aug 2012 07:14:58 +0200

Dear Statalist

I try the following commands:

. levelsof SIZEBM,local(levels)
`"BH"' `"BL"' `"BM"' `"SH"' `"SL"' `"SM"'

foreach l of local levels {
  egen meanwreturn_`l'=wtmean(trt1m) if SIZEBM=="`l'",weight(size) by(datemt)
  }
BH not found
r(111);

wtmean is from SSC. 

SIZEBM is a string variable, generated with the command

egen SIZEBM=concat(SIZE BM)

It seems the problem is not the foreach, but the term - SIZEBM=="`l'" - 

Any ideas the solve the problem highly appreciated.

Thanks, Fabian
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