[R-sig-Geo] "txt" to "listw"

[anny peng]

Dear R users,

Thank Dr. Divand for creating spdep, and thank everyone for your attention.

I attach a 30*30 matrix, which consists of 0 and 1.  The matrix is  a
"txt" file.  I would like to change this matrix into a ".listw" file
so that I can estimate spatial auto-correlation.

As a new user, I have difficulties in reading "txt" file and use the
function "mat2listw".

Below are my errors.


data1= read.fwf("30_30.txt", widths=1)


coords <- coordinates(data1)
col005 <- dnearneigh(points, 0, 1, attr(col.gal.nb, row.names = IDs))
summary(col005)
col005.w.mat <- nb2mat(col005, zero.policy=TRUE)
col005.w.b <- mat2listw(col005.w.mat)

......



Best regard
Zz
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