Hello again everyone, Based on my previous reply, I decided to take out the second random statement, and the code seemed to run. What would I have lost in this analysis by removing the red section? Is this acceptable? Thanks, proc glimmix data=ELORA plots=studentpanel inititer=3000; class block tmt ID week; model dintake= tmt week tmt*week/ ddfm=kenwardroger; random block block*tmt; *random week/ residual type=ar(1) subject=id; lsmeans tmt tmt*week week/ pdiff adjust=tukey lines adjdfe=row; run;
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