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Re: st: How do I make frequencies for combined variables?


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: How do I make frequencies for combined variables?
Date   Thu, 27 Jun 2013 00:09:27 +0100

Try -groups- from SSC.

Nick
njcoxstata@gmail.com

On 26 June 2013 21:08, Edouard Betsem <edouardbetsem@gmail.com> wrote:

> I am new in Stata and currently working on symptoms combinations for a
> specific disease.
> There are 12 symptoms that can be found in combinations of 1 to 12 in
> different individuals (cases and controls)
> I would like to tell how frequent any combination is in disease negative
> individuals.
> I need to list specifically the symptoms in any combination and the
> frequency of that particular combination.
>
> If I consider fever, headache and cough,
> i need the frequency of each of them them of combination of two then the
> three of them.
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