我在SAS里键入如下语句:
proc iml;
cov1={0.09,0.11};
cov2=t(cov1);
cov3={1 0.675,0.675 1};
cov=(cov1*cov2)#cov3;
free cov1 cov2 cov3;
mu={0,0};
call vnormal(et, mu, cov, 1000);
colname1='dm'//'bp';
create a from et [colname=colname1];
append from et;
run;
quit;
提交后运行日志里出现“Module MAIN is undefined in IML; cannot be RUN.”的字样。请问这是怎么回事?数据集a已经产生,这对产生的数据会有影响吗?谢谢各位指教~
[em04]