Hi all,
can any one of you see whats wrong in the code below?
> model<-lm(Tcrash~X100MVMT+Alcohol+Alignment+PVMT, data=data)#works
> sar<-spautolm(Tcrash~X100MVMT+Alcohol+Alignment+PVMT,listw=WI_queenW,
> data=data)#works
> lag <- lagsarlm(Tcrash~X100MVMT+Alcohol+Alignment+PVMT, data=data,
> listw=listwW)#shows error
Error in solve.default(inf, tol = tol.solve) :
system is computationally singular: reciprocal condition number = 2.44638e-12
> lag <- lagsarlm(Tcrash~X100MVMT+Alcohol+Alignment+PVMT, data=data,
> listw=WI_queenW)
Error in solve.default(inf, tol = tol.solve) :
system is computationally singular: reciprocal condition number = 1.51647e-13
> WI_queenW
Characteristics of weights list object:
Neighbour list object:
Number of regions: 71
Number of nonzero links: 364
Percentage nonzero weights: 7.22079
Average number of links: 5.126761
Weights style: B
Weights constants summary:
n nn S0 S1 S2
B 71 5041 364 728 8160
.............................
Milan
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