Hi. 

I'm a new user of R and I'm trying to run a spatial probit model using the
spatialprobit package. I've a dataset of 15677 obs (municipalities followed
up from 2001 to 2012). My depvar is the decision to outsource a particular
service (binary) and my indepvar of interest is "shareholder" (equal to 1 if
the municipality is a shareholder of a firm operating that particular
service, 0 otherwise). 
I guess that there is a spatial dependence in the decision due to the
occurrence of several municipalities being shareholders of the same firm. 
After having imported the weight matrix W (15677x15677, with element eij
equal to 1 if municipality i and municipality j are shareholders of the same
firm, 0 otherwise) I have tried to run the model. Here the code with the
relevant output: 

>library(spatialprobit) 
  package 'spatialprobit' was built under R version 3.0.2 
> set.seed(2) 
> y<-as.numeric(X$cp) 
> sprobit<-sarprobit(y ~
1+shareholder+size+municipal+ineconomia+dur1+dur2+dur3+dur4, data=X, W=W1) 
Errore in .local(x, ...) : 
  cs_lu(A) failed: near-singular A (or out of memory) 

As you can see I get this error and have tried without any result to cope
with it. 
Have anyone some suggestions? 

Thank you 
Ric


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