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st: testing for contrasts using svr command


From   "Chattopadhyay, Arpita" <[email protected]>
To   "'[email protected]'" <[email protected]>
Subject   st: testing for contrasts using svr command
Date   Tue, 15 Jun 2004 15:21:13 -0700

Hi everyone,
I am using the svrmean command to calculate the mean of variable by race and
gender.  I then want to see if difference in mean between males and females
among whites is significantly different from the gender difference in other
races.  I gather that fro this I need to use the svrest and svresttest
commands.  This is what I am doing: (1,2,3 & 4 are race, gender groups)
. svrest "svrmean usc, by (group)" "[usc]2-[usc]1-[usc]4+[usc]3"
error when command executed on original dataset
invalid syntax
r(101);
Please help.
Thanks.
Arpita


********************************************************
Arpita Chattopadhyay, Ph.D.
Senior Statistician
Primary Care Research Center
University of California at San Francisco
1001 Potrero Avenue, Building 90, Ward 95
San Francisco, CA 94110
Ph: 415 206 6188
********************************************************



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