m*i
发帖数: 8 | 1 Hi,everybody
I have a question about how to write contrast in proc genmod to test whether
the effect of the two dummy variables are simultaneously zero, is the
following contrast correct? If not, how should I write the contrast?
Thanks in advance and happy holiday.
MDI
proc genmod data=work.tmp descending;
title "GEE";
class IDSubject dum1(ref='0') dum2(ref='0') /param=ref;
model &depVar=dum1 dum2/link=logit dist=bin offset=logmiles lrci waldci
type3;
repeated subject=IDSubject/type=ind;
contrast 'two indicators are simultaneously zero' dum1 -1 1, dum2 -1 1;
run;
help with contrast statement in proc genmod |
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