[R] error while estimating spatial Durbin (mixed) model

[wujunqian]

Dear all,
I am new here ,I attempted to use R to estimate the spatial Durbin (mixed)
model,and mydata is a panel data form,and the matrix is generated by geoda
software ,here is my Command and error,really hope your help ,thank you!
#引入gal
library(spdep)
w<- read.gal("E:/splm/zj.GAL",override.id=TRUE)
ww<-nb2listw(w,zero.policy=TRUE)
#引入数据 
library(foreign)
mydata<-read.dta("E:/splm/merge.dta")
#回归 
library(splm)
fm<-lrincome~ishare+mgdp+tinput
ssss<-lagsarlm(fm, data = mydata,listw =ww,zero.policy=TRUE,type="mixed")
summary(ssss)

error:Input data and weights have different dimensions




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