## Analysis of Variance

PROC SURVEYREG produces an analysis of variance table
for the model specified in the MODEL statement. This
table is identical to the one produced by the GLM
procedure for the model. PROC SURVEYREG computes ANOVA
table entries using the sampling weights, but not the
sample design information on stratification and
clustering.
The degrees of freedom (DF) displayed in the ANOVA table are
the same as those in the ANOVA table produced by
PROC GLM. The Total DF is the total degrees of freedom
used to obtain the regression coefficient estimates.
The Total DF equals the total number of observations
minus 1 if the model includes an intercept. If the model
does not include an intercept, the Total DF equals the
total number of observations. The Model DF equals the
degrees of freedom for the effects in the MODEL
statement, not including the intercept. The Error DF
equals the total DF minus the model DF.

Copyright © 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.