怎么在stata中,对样本的一个子集做回归分析? 5 个回复 - 11272 次查看
求助!用stata做作业的时候,有一道题的要求是:
construct as many as possible sub-samples that exactly have 30 observations, and then run regressions for all sub-samples you have constructed.
不知道怎 ...2012-11-14 18:07 - 皮卡乔 - Stata专版