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st: AW: sort by permutation


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: AW: sort by permutation
Date   Mon, 21 Dec 2009 09:54:15 +0100

<> 

BTW, before you get into this exercise, familiarize yourself with the
hazards of -sort-, as documented in
http://www.stata-journal.com/sjpdf.html?articlenum=dm0019 and
http://www.stata.com/support/faqs/lang/sort.html




HTH
Martin


-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Abdel Rahmen El
Lahga
Gesendet: Montag, 21. Dezember 2009 00:34
An: statalist@hsphsun2.harvard.edu
Betreff: st: sort by permutation

I have a sample of N individuals belonging to 4 sub-groups g1, g2, g3,
g4. I would like to sort my sample of size N  in 24 different
manners, corresponding to all possible permutations of my group
variable
say, {g1,g2,g3,g4}, {g1,g3,g2,g4} {g1,g3,g4,g2}...etc.
Taking a simple exemple for N=10. I have
id group
1    1
2    1
3    2
4    2
5    2
6    3
7    3
8    4
9    4
10  4

one possible sorting among 24 could be
id group
1    1
2    1
6    3
7    3
3    2
4    2
5    2
8    4
9    4
10  4
any help is apreciated
-- 
AbdelRahmen El Lahga
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