use "C:\Users\wr\Desktop\矩W.dta"
spatwmat using "C:\Users\wr\Desktop\矩W.dta",name (W) standardize
use "C:\Users\wr\Desktop\统计建模\面板数据.dta"
xtset code year
xsmle y1 x1 x2 x3 x4 x5 x6, fe model(sdm)
向各位佬请教一下啊这个运行之后会出现以下报错，我该怎么改
. xsmle y1 x1 x2 x3 x4 x5 x6, fe model(sdm)
At least one of wmatrix() and ematrix() must be speci
> fied
invalid syntax
r(198);