通过检验发现面板数据存在组内自相关和组间异方差,用指令
xtgls y x1 x2 x3 x4 x5 x6 , corr(ar1) panels(het)
显示:year is not regularly spaced or does not have intervals of delta -- use the force option to treat the intervals as though they were regular
请问该怎么做?
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楼主: bldsy201
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[面板数据求助] 用Stata进行FGLS回归时自相关设定问题 |
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