The broad topic is often discussed on this list. Type 
. findit tuples 
and then search the archives for threads mentioning
-selectvars- and -tuples- (and that also mention 
other solutions). 
Nick 
[email protected] 
Daniel Caro
 
> I'd like to perform a procedure on all the possible combinations of c
> variables from my varlist. For example, if the procedure is 
> pca, c=2 and
> varlist=wealth books poss:
> 
> pca wealth books
> pca wealth poss
> pca books poss
> 
> The combination problem gets more complex with other cs and 
> varlists. Is
> there a command to do this in Stata?
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