Date:         Tue, 10 Dec 2002 06:01:33 -0800
Reply-To:     Dassy <dassybr@HOTMAIL.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Dassy <dassybr@HOTMAIL.COM>
Organization: http://groups.google.com/
Subject:      stratified test
Content-Type: text/plain; charset=ISO-8859-1

Hello out there,
Im a student currently working on a data set with five variables in
sas. One problem i had to accomplish was to take one of these
variables ( a dichotomous one)and to compare the survival in the two
different groups withing this variables. I did that by: proc lifetest
data=TMP1.leberca2 plots=(s);
         time zeit*status(0);
         strata z1;(the dichotomous variable)
         run;
Now, the next thing i want to do is to carry through a stratified test
for this problem by taking another dichotomous variable as
stratification-variable.I did this by:proc lifetest
data=TMP1.leberca2sort plots=(s);
        time zeit*status(0);
        strata z5;(the second dichotomous variable)
        by z1;
        run;

Of course i sorted z1 and z5 before doing the test. Is this a
reasonable solution (sorry, first time using sas)?
Thank you for answers!
Dassy