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st: frustrated by missing variables--collapase and merge


From   Zhou YU <zyu@usc.edu>
To   statalist@hsphsun2.harvard.edu
Subject   st: frustrated by missing variables--collapase and merge
Date   Thu, 17 Mar 2005 19:24:37 -0800

Hi all,

I have been trying to collapse merge a number of variables. What frustrated me is that there is always one or two variables missing after collapsing or merging. Last night I have to repeated the same procedures several times, which took me the whole evening to create a dataset. Intestingly, each time, different variables were missing.

Have anyone encountered the same problem? Any solutions?

Thanks a bunch!

Zhou

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