FILENAME goptions URL "http://192.38.117.59/~linearpredictors/datafiles/goptions.sas";
%include goptions;

FILENAME url URL "http://192.38.117.59/~linearpredictors/datafiles/readPbc3.sas";
%include url;
    
/*
Kaplan-Meier Survival curves
*/
    
PROC LIFETEST DATA=pbc3
    PLOTS = (s)
    OUTSURV = survdata
    CENSOREDSYMBOL = NONE; 
    TIME followup*status(0);
    STRATA tment;
RUN;