/*-----------------------------------------------------------------
S A S S A M P L E L I B R A R Y
NAME: GLMEX10
TITLE: Example 10 for PROC GLM
PRODUCT: STAT
SYSTEM: ALL
KEYS: Homogeneity of variance
PROCS: GLM
DATA:
SUPPORT: sasrdt
REF: PROC GLM, EXAMPLE 10.
MISC:
-----------------------------------------------------------------*/
/* Testing for Equal Group Variances ---------------------------*/
data upsit;
input agegroup smell @@;
datalines;
1 1.381 1 1.322 1 1.162 1 1.275 1 1.381 1 1.275 1 1.322
1 1.492 1 1.322 1 1.381 1 1.162 1 1.013 1 1.322 1 1.322
1 1.275 1 1.492 1 1.322 1 1.322 1 1.492 1 1.322 1 1.381
1 1.234 1 1.162 1 1.381 1 1.381 1 1.381 1 1.322 1 1.381
1 1.322 1 1.381 1 1.275 1 1.492 1 1.275 1 1.322 1 1.275
1 1.381 1 1.234 1 1.105
2 1.234 2 1.234 2 1.381 2 1.322 2 1.492 2 1.234 2 1.381
2 1.381 2 1.492 2 1.492 2 1.275 2 1.492 2 1.381 2 1.492
2 1.322 2 1.275 2 1.275 2 1.275 2 1.322 2 1.492 2 1.381
2 1.322 2 1.492 2 1.196 2 1.322 2 1.275 2 1.234 2 1.322
2 1.098 2 1.322 2 1.381 2 1.275 2 1.492 2 1.492 2 1.381
2 1.196
3 1.381 3 1.381 3 1.492 3 1.492 3 1.492 3 1.098 3 1.492
3 1.381 3 1.234 3 1.234 3 1.129 3 1.069 3 1.234 3 1.322
3 1.275 3 1.230 3 1.234 3 1.234 3 1.322 3 1.322 3 1.381
4 1.322 4 1.381 4 1.381 4 1.322 4 1.234 4 1.234 4 1.234
4 1.381 4 1.322 4 1.275 4 1.275 4 1.492 4 1.234 4 1.098
4 1.322 4 1.129 4 0.687 4 1.322 4 1.322 4 1.234 4 1.129
4 1.492 4 0.810 4 1.234 4 1.381 4 1.040 4 1.381 4 1.381
4 1.129 4 1.492 4 1.129 4 1.098 4 1.275 4 1.322 4 1.234
4 1.196 4 1.234 4 0.585 4 0.785 4 1.275 4 1.322 4 0.712
4 0.810
5 1.322 5 1.234 5 1.381 5 1.275 5 1.275 5 1.322 5 1.162
5 0.909 5 0.502 5 1.234 5 1.322 5 1.196 5 0.859 5 1.196
5 1.381 5 1.322 5 1.234 5 1.275 5 1.162 5 1.162 5 0.585
5 1.013 5 0.960 5 0.662 5 1.129 5 0.531 5 1.162 5 0.737
5 1.098 5 1.162 5 1.040 5 0.558 5 0.960 5 1.098 5 0.884
5 1.162 5 1.098 5 0.859 5 1.275 5 1.162 5 0.785 5 0.859
;
proc glm data=upsit;
class agegroup;
model smell = agegroup;
means agegroup / hovtest welch;
run;
/* Perform a One-way ANOVA with Graphics and Diagnostics -------*/
ods graphics on;
proc glm data=upsit plot=diagnostics;
class agegroup;
model smell = agegroup;
run;
ods graphics off;