dlut123 发表于 2021-1-25 16:37 
: 3499 thestm2() not found
缺少这个文件 thestm2()
我又重新运行了一下,运行错误提示是这样的:
There exist time-invariant individual(s) (maybe only one obs): y1 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10
year must have multiple distinct nonmissing values
是因为运行程序文件不全是吧~