.
PS... what is your signature text figure supposed to be? A dragon?
On Mar 14, 2009, at 11:28 AM, Ishay Barat wrote:
HELLO
I've got a data set containing about 2500 patients, of which 300
have my interest (Group A).
I would like to extract a sample of 900 patients (Group B) out of
the data set that match Group A in age, sex and some other
parameters. A Classical Case-Control study with 3 controllers for
each case.
Is anybody have a clue how the syntax look like??
*¸..· ´¨)) -:¦:- *
¸.·´ .
(( -:¦:- * Ishay * -:¦:-
´·.. ..·´
((¸¸.·´* -:¦:-
*
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*
* For searches and help try:
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* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
