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st: How do I make frequencies for combined variables?
From
Edouard Betsem <[email protected]>
To
[email protected]
Subject
st: How do I make frequencies for combined variables?
Date
Wed, 26 Jun 2013 13:08:14 -0700
Dear Statalisters,
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.
thank you for your great help
Edouard
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