Example 2 for PROC RSREG
/****************************************************************/
/* S A S S A M P L E L I B R A R Y */
/* */
/* NAME: RSREX2 */
/* TITLE: Example 2 for PROC RSREG */
/* PRODUCT: STAT */
/* SYSTEM: ALL */
/* KEYS: response surface regression */
/* PROCS: RSREG */
/* DATA: */
/* */
/* SUPPORT: Bob Derr */
/* REF: SAS/STAT User's Guide, PROC RSREG chapter */
/* MISC: */
/* */
/****************************************************************/
title 'Response Surface Analysis with Covariates';
data Experiment;
input Day Grade Time Temp Pressure Yield;
datalines;
1 67 -1 -1 -1 32.98
1 68 -1 1 1 47.04
1 70 1 -1 1 67.11
1 66 1 1 -1 26.94
1 74 0 0 0 103.22
1 68 0 0 0 42.94
2 75 -1 -1 1 122.93
2 69 -1 1 -1 62.97
2 70 1 -1 -1 72.96
2 71 1 1 1 94.93
2 72 0 0 0 93.11
2 74 0 0 0 112.97
3 69 1.633 0 0 78.88
3 67 -1.633 0 0 52.53
3 68 0 1.633 0 68.96
3 71 0 -1.633 0 92.56
3 70 0 0 1.633 88.99
3 72 0 0 -1.633 102.50
3 70 0 0 0 82.84
3 72 0 0 0 103.12
;
proc rsreg data=Experiment;
model Yield = Time Temp Pressure;
run;
data Experiment;
set Experiment;
d1 = (Day = 1);
d2 = (Day = 2);
d3 = (Day = 3);
ods graphics on;
proc rsreg data=Experiment plots=all;
model Yield = d1-d3 Grade Time Temp Pressure / covar=4;
run;
ods graphics off;
