bernardo lagos alvarez <blacertain <at> gmail.com> writes:
>
> useR's
>
> I need transform the matrix
>
> wdat
> [,1] [,2] [,3] [,4] [,5] [,6]
> [1,] 0 1 0 1 1 0
> [2,] 1 0 0 1 1 0
> [3,] 0 0 0 0 1 1
> [4,] 1 1 0 0 1 0
> [5,] 1 1 1 1 0 0
> [6,] 0 0 1 0 0 0
>
> to gal object. How I do with spdep?
RSiteSearch("matrix listw")
gets you to several threads on the R-sig-geo list, suggesting in your case:
w <- mat2listw(wdat)
# convert matrix to spatial weights list
write.nb.gal(w$neighbours, "wdat.gal")
# write neighbours component of spatial weights list as GAL file
Roger Bivand
>
> Thanks in advance for the help.
>
> Bernardo.
> University of Concepció.
>
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