面板数据固定效应与随机效应模型选取,传统豪斯曼检验无法进行时,用xtoverid过度识别进行辅助回归,按照陈强stata应用第二版15.13命令输入运行,命令语句为
//辅助回归的官方命令
ssc install xtoverid //下载安装命令xtoverid
quietly xtreg fatal beertax spircons unrate perinck,re r
xtoverid
前两条语句运行正常,运行到xtoverid,结果页面显示错误
//Error - must have ivreg2/ivreg29/ivreg28 version 2.1.15 or greater installed (意思是版本问题?)
r(601);
error . . . . . . . . . . . . . . . . . . . . . . . . Return code 601
file __________ not found;
The filename you specified cannot be found. Perhaps you
mistyped the name, or it may be on another CD or directory.
If you are a Mac user, perhaps you had an unintentional blank
at the beginning or ending of your filename when it was
created. In Finder, click on the file to blacken the name.
If you see anything other than a thin, even space on each
side of the name, rename the file to eliminate the leading
and trailing space characters.
这是为什么?
之前的运行都是按照书上一步一步操作的,求热心人提供帮助。辅助回归的手动程序命令我也做了,结果可以出来。



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