Hi,
I have following format for the variable stadium:
PROC FORMAT ;
value stage 1 = "early"
2 = "intermediate"
3 = "advanced";
Run;
data comparison;
set comparison;
format stadium stage.;
run;
and when I run the lifetest procedure:
proc lifetest data=comparison method=km alpha=0.05 ;
time sv*tod_yn(0);
strata stadium;
run;
when I am using this code, I have folloing stratum
stratum 1 : stadium=advanced
stratum 2 : stadium=early
stratum 3 : stadium=intermediate
(it is ordered alphabetisch)
I would like to have following:
stratum 1 : stadium=early
stratum 2 : stadium=intermediate
stratum 3 : stadium=advanced
(ordered after the values of the variable stadium 1,2,3).
can you please tell me what I should do to get the stratum I would like to have.
Thank you so much for you help
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