若我用stata10指令的ivreg2解决内生性问题 我确定指令没错 指令是:ivreg2 Y1 (anxiety_standerize depression_standerize anxiety_depression_standerize = take_goodcare sweaty_exercises sleep_long peace havingdinner)gender cram_hours study_hours first5_grade over_grade under_grade unknown_grade less_3 less_5 less_10 less_20 over_20 Fa_senior Fa_college Fa_univer Fa_gra Ma_senior Ma_college Ma_univer Ma_gra schoolprive rural city peers onlychild elder_child middle,r first ( p.s.我有6500笔资料,三个工具变数,四个或五个IV) 下了这样的指令之後 stata营幕会出现: Unable to display all first-stage regressions. There may be insufficient room to store results using -estimates store-. Try dropping one or more estimation results using -estimates drop-. 的情况 但某些变数(如把自变数换一下)的IV估计後不会出现这样的结果 请问, 接下来我该怎麽办?? 才可以让stata显示所有的第一阶段估计结果?谢谢 --

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