/* Programs for labnote 2 */
/* Prepared by Sheng Luo */

DATA myel;
	SET "c:\courses\Survival\2006\labs\lab2\myel";
RUN;

proc print;
run;

PROC LIFETEST data=myel;
	TIME dur*status(0);
RUN;

/*Write the 95% confidence interval in an output file*/
PROC LIFETEST data=myel outsurv=myoutput;
	TIME dur*status(0);
RUN;

/* print out the 95% confidence interval in the output file*/
PROC print data=myoutput;
RUN;


/*Graph*/
PROC LIFETEST data=myel plots=(s) graphics;
	TIME dur*status(0);
RUN;

/*Compare two survival curves between two treatment groups*/
PROC LIFETEST data=myel plots=(s) graphics;
	TIME dur*status(0);
	STRATA treat;
RUN;