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st: xtreg

From   catia nicodemo <>
Subject   st: xtreg
Date   Thu, 15 Sep 2005 14:37:44 +0200 (CEST)

Dear all,
I use the command xtreg but I have a problem when I
use the comand by country: xtreg,,,,,
make an error: insufficient observation, but if do the
sum of my var. I have observation.
Can help me please.
  thanks in advance


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