Resources

Documentation Example 14 for PROC SEQDESIGN

/****************************************************************/
/*          S A S   S A M P L E   L I B R A R Y                 */
/*                                                              */
/*    NAME: SEQDX14                                             */
/*   TITLE: Documentation Example 14 for PROC SEQDESIGN         */
/* PRODUCT: STAT                                                */
/*  SYSTEM: ALL                                                 */
/*    KEYS: group sequential design                             */
/*   PROCS: SEQDESIGN                                           */
/*    DATA:                                                     */
/*                                                              */
/* SUPPORT: Yang Yuan             UPDATE: Aug 21, 2007          */
/*     REF: PROC SEQDESIGN, EXAMPLE 14                          */
/*    MISC:                                                     */
/****************************************************************/
proc seqdesign altref=0.693147
               ;
   OBrienFleming: design nstages=4
                  method=obf
                  ;
   samplesize model=twosamplesurvival
                    ( nullhazard=0.03466
                      accrual=exp(parm=-0.1)
                      loss=exp(hazard=0.05)
                      acctime=20);
run;
proc seqdesign altref=0.693147
               ;
   OBrienFleming: design nstages=4
                  method=obf
                  ;
   samplesize model=twosamplesurvival
                    ( nullhazard=0.03466
                      accrual=exp(parm=-0.1)
                      loss=exp(hazard=0.05)
                      accnobs=360 acctime=20);
run;