Fractional Factorial Split-Plot Design
/****************************************************************/
/* S A S S A M P L E L I B R A R Y */
/* */
/* NAME: FACTEX18 */
/* TITLE: Fractional Factorial Split-Plot Design */
/* PRODUCT: QC */
/* SYSTEM: ALL */
/* KEYS: Design of Experiments, Factorial Designs, */
/* PROCS: FACTEX GLM */
/* DATA: */
/* */
/* REF: SAS/QC Software: Usage and Reference, Version 6, */
/* First Edition, Volume 1 and Volume 2 */
/* */
/* MISC: */
/* */
/****************************************************************/
proc factex;
factors W1 W2 W3
S1 S2 S3;
size design=16;
blocks units=(Wire=8);
model r=4;
uniteffect Wire / whole=(W1 W2 W3)
sub =(S1 S2 S3);
examine aliasing(units);
output out=WireExperiment1;
run;
proc sort data=WireExperiment1;
by Wire W1-W3 S1-S3;
run;
proc print data=WireExperiment1;
run;
proc factex;
factors W1 W2 W3
S1 S2 S3;
size design=16;
blocks units=(Wire=8);
model r=4;
uniteffect Wire / whole=(W1 W2 W3)
sub =(S1 S2 S3);
examine confounding;
run;
proc factex;
factors W1 W2 W3
S1 S2 S3;
size design=64;
blocks units=(Wire=8 Sheath=4);
model r=3;
uniteffect Wire / whole=(W1 W2 W3);
uniteffect Sheath / whole=(S1 S2 S3);
examine aliasing(units);
output out=WireExperiment2;
proc freq data=WireExperiment2;
table Wire *W1*W2*W3 / list nocum nopct;
table Sheath*S1*S2*S3 / list nocum nopct;
run;