Get Started Example 2 for PROC PHREG
/****************************************************************/
/* S A S S A M P L E L I B R A R Y */
/* */
/* NAME: PHRGS2 */
/* TITLE: Get Started Example 2 for PROC PHREG */
/* PRODUCT: STAT */
/* SYSTEM: ALL */
/* KEYS: Bayesian Analysis of the Cox Regression Model */
/* PROCS: PHREG, MEANS */
/* DATA: Kalbfleish and Prentice (1980), The Statistical */
/* Analysis of Failure Time Data, page 2. */
/* SUPPORT: sasycs */
/* REF: 9.2 SAS/STAT User's Guide, PROC PHREG Chapter */
/* MISC: */
/****************************************************************/
data Rats;
label Days ='Days from Exposure to Death';
input Days Status Group @@;
datalines;
143 1 0 164 1 0 188 1 0 188 1 0
190 1 0 192 1 0 206 1 0 209 1 0
213 1 0 216 1 0 220 1 0 227 1 0
230 1 0 234 1 0 246 1 0 265 1 0
304 1 0 216 0 0 244 0 0 142 1 1
156 1 1 163 1 1 198 1 1 205 1 1
232 1 1 232 1 1 233 1 1 233 1 1
233 1 1 233 1 1 239 1 1 240 1 1
261 1 1 280 1 1 280 1 1 296 1 1
296 1 1 323 1 1 204 0 1 344 0 1
;
ods graphics on;
proc phreg data=Rats;
model Days*Status(0)=Group;
bayes seed=1 outpost=Post;
run;
ods graphics off;
data New;
set Post;
Indicator=(Group < 0);
label Indicator='Group < 0';
run;
proc means data=New(keep=Indicator) n mean;
run;