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Augmenting A Resolution IV Design

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 /*          S A S   S A M P L E   L I B R A R Y                 */
 /*                                                              */
 /*    NAME: FACTEX5                                             */
 /*   TITLE: Augmenting A Resolution IV 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:                                                     */
 /*                                                              */
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options ps=60 ls=90;

proc factex;
   factors temperat moisture holdpres cavthick
           boostprs time     screwspd gatesize;
   size design = 16;
   model resolution = 4;
   examine design aliasing;
run;

  model estimate = ( moisture*time
                     holdpres*screwspd
                     cavthick*gatesize );
  size design = 4;
  examine design;
run;