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st: Ranking timed data


From   Sascha Robert <sascha.robert@iew.unizh.ch>
To   STATA List <statalist@hsphsun2.harvard.edu>
Subject   st: Ranking timed data
Date   Thu, 14 Apr 2005 11:30:54 +0200

Hi

I applogize for this newbie question in advance.
My data looking like this

time id var
1 1 19.5
1 2 20.7
1 3 15.0
2 1 16.5
2 2 21.7
2 3 17.0
...

Now I would like to generate a variable 'rank' for each value of 'time' representing the ordinal number of th value 'var':

time id var rank
1 1 19.5 2
1 2 20.7 1
1 3 15.0 3
2 1 16.5 3
2 2 21.7 1
2 3 17.0 2
...

. recode does not seem to work, because 'var' changes to a great extent over time.

Any hints? Thankyou
Sascha

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***** sascha robert | mailto: sascha.robert@iew.unizh.ch *****
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