输入命令
forvalues c=2/5{
2. lclogit y location camera album microphone maillist calendar money,
3. group(gid) id(pid) nclasses(`c') membership(_x1) seed(1234567890)
4. matrix b = e(b)
5. matrix ic = nullmat(ic)\ `e(nclasses)',`e(ll)',`=colsof(b)',
6. `e(caic)',`e(bic)'
7. }
option id() required
r(198);
一直报错
请问这个问题要怎么解决呢?