The number specified here is multipled by 10
-8
and the product is specified as the optional parameter PCONV in PROC GLIMMIX. The GLIMMIX procedure applies this criterion to fixed-effects estimates and
covariance
parameter estimates.
Note
: If you see non-convergence notes regarding
PCONV
in the log after you run
ANOVA
process, you can increase this number to have a less restrictive criterion and thus avoid this convergence error. You should experiment with different values to achieve a reasonable restrictive criterion and strike a reasonable balance between convergence errors and reliability.