
From  "Nikolaos A. Patsopoulos" <npatsop@cc.uoi.gr> 
To  statalist@hsphsun2.harvard.edu 
Subject  Re: st: combination of observations 
Date  Tue, 13 Feb 2007 16:07:23 +0200 
n j cox wrote:
You are using Stata 8.0. You, or your systems administrator,tuples is near enough to what I want to do, so I'm going to play a bit with it's code.
should update to Stata 8.2. It is free.
comb() is not implemented as an .ado file. It is a Stata function,
not a command or program. All Stata functions are implemented as
part of the executable and not visible to users.
That said, I am not clear precisely what your problem is, but tuples on SSC, or the code therein, may help.
Nick
n.j.cox@durham.ac.uk
Nikolaos A. Patsopoulos
for n observations list by combinations of k. if we set n=4 and k=2 for the
following dataset we should get:
Dataset: var1: [1] A [2] B [3] C [4] D
AB
AC
AD
BC
BD
CD
Actually insetad of list I want to run another program but the logic is the same.
Have tried to find sth like this but the comb() function only gives the number
of combinations. Some programs I found cpr (Cox) and byvar (Royston) do
combinations for a given set of number (max=5).
Is there a way I can do this in STATA (version 8.0)?
At least does anyone knows where I can one find the ado of comb()? I look into
my STATA and ado folders but it must have a different name.
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