Hi, I want to get the 'critical value for comparison' for Tukey-Kramer Test in Proc Plm, for main effect comparisons (three factors). Although, the proc plm output gives lettering between the treatments, but I need the critical value by which the lettering was actually done. DATA details: I have split-split plot design, with three factors. ANOVA was calculated by Proc mixed method, and after that I employed Tukey test using lsmeans in Proc plm. I would be grateful if anyone can help me with my question, or suggest me the way/method so that I can calculate critical value for Tukey test using ANOVA details. Attached are the screenshots of SAS code and the output file.
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