*************************************************************;
*** D-EFFICIENT PROC OPTEX DESIGN -- K=3 , DEFAULT N=P+10 ***;
*************************************************************;

OPTIONS PS=60 LS=64 NODATE NONUMBER;

DATA IN;
     DO X1=-1 TO 1 BY .5;
     DO X2=-1 TO 1 BY .5;
     DO X3=-1 TO 1 BY .5; OUTPUT; END; END; END;
TITLE;

PROC OPTEX DATA=IN;
  EXAMINE DESIGN;
  MODEL X1|X2|X3@2 X1*X1 X2*X2 X3*X3;
  GENERATE METHOD=FEDOROV CRITERION=D ITER=32;
TITLE 'D-EFFICIENT PROC OPTEX DESIGN -- K=3 , DEFAULT N=P+10';
RUN;

***********************************************************;
*** D-EFFICIENT PROC OPTEX DESIGN -- K=3 , DEFAULT N=12 ***;
***********************************************************;

OPTIONS PS=60 LS=64 NODATE NONUMBER;

DATA IN;
     DO X1=-1 TO 1 BY .5;
     DO X2=-1 TO 1 BY .5;
     DO X3=-1 TO 1 BY .5; OUTPUT; END; END; END;
TITLE;

PROC OPTEX DATA=IN;
  EXAMINE DESIGN VAR;
  MODEL X1|X2|X3@2 X1*X1 X2*X2 X3*X3;
  GENERATE METHOD=FEDOROV CRITERION=D ITER=40 N=12;
  OUTPUT OUT=DSGN1 ;
TITLE 'D-EFFICIENT PROC OPTEX DESIGN -- K=3';
TITLE2 'N=12 SPECIFIED , OUTPUT DESIGN , INCLUDE (X''X)^-1';
PROC PRINT DATA=DSGN1;
RUN;