结果:找到“Heckman two-step”相关内容15个,排序为按回复时间降序,搜索更多相关帖子请点击“高级”
heckman two step程序出错,请指教
2 个回复 - 9756 次查看
第一次用heckman two step to correct selection bias. 我用的stata12。可是总是出错。帮我看看哪里不对?
error message: "Dependent variable never censored because of selection: model would simplify to ...
2013-9-11 01:00 - affiliation - Stata专版