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st: sample splitting problem


From   Robert <robertjbrienza@aol.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: sample splitting problem
Date   Tue, 20 Nov 2007 17:28:07 -0500

Dear all, here I'm again for a new request of help. I would like to 
replicate a sample splitting into my research.
Given an unbalanced panel (ts-cs data) and two variables, x and y, the 
sample splitting criterion is the following:
a firm is identified as having more "x" (high_x) if "x/y" is larger 
than the median accross firms of the firms' time averages.
Conversely, a firm is identified as having less "x" (low_x) if "x/y" is 
less than (or equal to) the median accross firms of
these time averages. I would be grateful if someone can help me with 
the commands (just an example to use for my dataset).

Thank you very much,

Robert

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