Documentation Example 21 for PROC CALIS
/****************************************************************/
/* S A S S A M P L E L I B R A R Y */
/* */
/* NAME: CALEX05 */
/* TITLE: Documentation Example 21 for PROC CALIS */
/* PRODUCT: STAT */
/* SYSTEM: ALL */
/* KEYS: equality of covariance matrices */
/* PROCS: CALIS */
/* DATA: */
/* */
/* SUPPORT: yiyung UPDATE: August 27, 2007 */
/* REF: PROC CALIS, Example 21 */
/* MISC: */
/****************************************************************/
data expert(type=cov);
input _type_ $ _name_ $ high medium low;
datalines;
COV high 5.88 . .
COV medium 2.88 7.16 .
COV low 3.12 4.44 8.14
;
data novice(type=cov);
input _type_ $ _name_ $ high medium low;
datalines;
COV high 6.42 . .
COV medium 1.24 8.25 .
COV low 4.26 2.75 7.99
;
proc calis;
group 1 / data=expert nobs=20 label="Expert";
group 2 / data=novice nobs=18 label="Novice";
model 1 / groups=1,2;
mstruct
var=high medium low;
fitindex NoIndexType On(only)=[chisq df probchi]
chicorrect=eqcovmat;
ods select ModelingInfo MSTRUCTVariables MSTRUCTCovInit Fit;
run;
proc calis covpattern=eqcovmat;
var high medium low;
group 1 / data=expert nobs=20 label="Expert";
group 2 / data=novice nobs=18 label="Novice";
fitindex NoIndexType On(only)=[chisq df probchi];
run;