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st: stacking horizontal data


From   John Bunge <jota.be@web.de>
To   statalist@hsphsun2.harvard.edu
Subject   st: stacking horizontal data
Date   Sat, 27 Oct 2007 19:31:48 +0200

Dear Statalisters,


I have a dataset that can be stylized as follows:


             2000 2001 2002
c1 c2     10     6       44    
c1 c3     2       3       9     
c2 c3     88     7       100    

It displays bilateral trade data with the exporting country in the first and the importing country in the second column.

To create a dataset for panel estimations, I need to change it into the following arrangement:

c1 c2  2000   10
c1 c2  2001    6
c1 c2  2002   44
c1 c3  2000    2
c1 c3  2001    3
c1 c3  2002    9
c2 c3  2000   88
c2 c3  2001    7
c2 c3  2002  100


Any suggestion how to implement this transformation would be highly appreciated.

Regards,

John.

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