arlionn 发表于 2011-10-14 09:04 
利用 20# 的测试结果如下:
. *-Testing bdiff.ado
连老师,我在做最后一步bdiff roe $xx, truediff(`d1_0' `d2_0') n1(9) bs(100) seed(123),stata报错:
the number of explianary variables must be equal to number of elements in option truediff(),不知道怎么回事,求解答。谢谢