Hello all,
how can i put fixed effect in proc mixed in repeated measure designs?the fixed effects involve time and treat and interaction between time and treat.therefore  time | treat  is correct or time treat time*treat is correct? .bellow is my cod.thanks for any help.
proc mixed data=data;
class Subject time treat ;
model response=time | treat ;
*model response=time  treat  time*treat;
repeated  time  / type=cs subject=Subject(treat)  ;
lsmeans time|treat;
run;