I am trying to determine the best model for my outcomes in SAS 9.2 mixed and glimmix- does anyone know if I want to test the effects of removing var1-do I need to remove it from BOTH the class and model statements or just one? proc mixed var1; class var1 var2; model var2 var3 var4; random intercept var6 / var 7; run; OR proc mixed var1; class var2; model var2 var3 var4; random intercept var6 / var 7; run; Thanks!!
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