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stata中的fweight,pweight,aweight和iweight等权重问题
9 个回复 - 4248 次查看
stata中允许的四种权重: 1. fweights, or frequency weights, are weights that indicate the number of duplicated observations.
2. pweights, or sampling weights, are weights that denote the inverse ...
2022-10-25 09:30 - wxylzh - Stata专版
求教stata 关于LLC和IPS的单位根检验
2 个回复 - 7963 次查看
我做的面板数据做下来P值都为1,不知道哪里出了问题求指教,谢谢
xtunitroot ips CPI
Im-Pesaran-Shin unit-root test for CPI
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Ho: All panels contain unit roots ...
2014-10-21 22:08 - zzjc - Stata专版