近期看到了一个Shukla 稳定性方差模型,代码是SAS,
请各位坛友帮助将它翻译成stata语句.谢谢!


proc mixed scoing=20;
class GEN ENV;
model Y=GEN/ddfm=satterthw aite;
random int/sub=ENC;
repeated GEN/sub=ENV type=un(1);
run;