proc genmod data=h.m0815z151 desc;
class id xb age_g group paymode_y/ref=first;
model anti_v=xb age_g paymode_y group / dist=bin ;
repeated subject=id/type=exch covb corrw;
run;
日志出现提示:Class levels for some variables were not printed due to excessive size. 意思是数据量太大,有一个变量无法设置哑变量,好郁闷