data want;
set www;
array tmp t1-t5;
do i=1 to dim(tmp);
no+1;
t=tmp;
output;
end;
run;
proc mix data=want;
class a b c;
model t=a b c;
repeated /type=un sub=no;
run;
un是指定的协方差结构,还可用vc, cs, ar(1), sp(pow)尝试。