A Fold-Over Design
/****************************************************************/
/* S A S S A M P L E L I B R A R Y */
/* */
/* NAME: FACTEX10 */
/* TITLE: A Fold-Over Design */
/* PRODUCT: QC */
/* SYSTEM: ALL */
/* KEYS: Design of Experiments, Factorial Designs, */
/* PROCS: FACTEX */
/* DATA: */
/* */
/* REF: SAS/QC Software: Usage and Reference, Version 6, */
/* First Edition, Volume 1 and Volume 2 */
/* MISC: */
/* */
/****************************************************************/
proc factex;
factors A B C D E F;
size fraction=8;
model resolution=3;
examine aliasing;
output out=Original;
run;
title 'Original Design';
proc print data=Original;
run;
data FoldOver;
set Original;
A=-A; B=-B; C=-C;
D=-D; E=-E; F=-F;
run;
title 'Fold-Over Design';
proc print data=FoldOver;
run;
title;