question about simulation based on joint disease progress and dropout model

From: Kehua wu Date: December 13, 2010 technical Source: mail-archive.com
Dear NMusers, We are trying to do VPC based on a joint disease progress and dropout model. But we did not get any results from the simulation. Does anybody have any suggestions? Thanks a lot. Kehua The control stream are below, $SUBS ADVAN6 TOL=6 $MODEL COMP=(CUMHAZ) COMP=(HZLAST) $PK BASE=THETA(1)*EXP(ETA(1)) SLOPE=THETA(2)+ETA(2) BSHZ=THETA(3) BETA=THETA(4) $DES SIZE=BASE+(SLOPE*TIME) TEMP=BETA*SIZE DADT(1)=EXP(TEMP) DADT(2)=EXP(TEMP) $ERROR CMHZ=BSHZ*A(1) HZLA=BSHZ*A(2) IF (TYPE.EQ.1) THEN IPRED=BASE+(SLOPE*TIME) W=THETA(5)*IPRED F_FLAG=0 Y=BASE+(SLOPE*TIME)+W*EPS(1) ENDIF IF(TYPE.EQ.2.AND.DV.EQ.0) THEN F_FLAG=1 Y=EXP(-CMHZ) ENDIF IF(TYPE.EQ.2.AND. DV.EQ.1) THEN F_FLAG=1 Y=EXP(-(CMHZ-HZLA))*(1-EXP(-HZLA)) ENDIF $THETA 63.0 0.153 0.00811 0.00633 0.063 $OMEGA 0.507 0.0914 $SIGMA 1 FIX $SIMULATION ONLYSIM SUBPROB=1 (1111111) $TABLE ID TIME IPRED NOPRINT ONEHEADER FILE=015.tab
Dec 13, 2010 Kehua wu question about simulation based on joint disease progress and dropout model
Dec 13, 2010 Nick Holford Re: question about simulation based on joint disease progress and dropout model
Dec 14, 2010 Kehua wu Re: question about simulation based on joint disease progress and dropout model