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st: Generating all possible combinations of pairs


From   "K Jensen" <k.x.jensen@googlemail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: Generating all possible combinations of pairs
Date   Wed, 27 Sep 2006 10:51:19 +0100

Hi

I have some repeated paired observations and would like to generate
all possible combinations of pairs.

The data looks like this :-
Pair  Subject  Var
101        1  134
101        2  563
101        2  455
102        1  345
102        1  363
102        1  299
102        2  647
102        2  352

I wish to generate data that looks like this :-
Pair  Var1  Var2
101   134   563
101   134   455
102   345   647
102   345   352
102   363   647
102   363   352
102   299   647
102   299   352

How can I accomplish this in Stata?

Thankyou in advance!

Karin
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