GLIMMIX produceses many residual plots: http://support.sas.com/documentation/cdl/en/statug/63962/HTML/default/viewer.htm#statug_glimmix_a0000001482.htm If you want to create your own: 1) Write the residuals to a data set by using the OUTPUT statement 2) Create a Q-Q plot by following the code or ideas in this article: Modeling the distribution of data? Create a Q-Q plot - The DO Loop
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