[R] GeoDa spdep

From: Steve Schachterle <steve.schachterle_at_gmail.com>
Date: Mon, 31 Mar 2008 18:18:18 -0400


My question is in regard to the spdep and GeoDa packages. Do you know how to extract a neighborhood/adjacency matrix from R? I need a matrix that has all the neighborhoods on the X and Y axis, and then a r=1 when the neighborhoods touch, and a r=0 when neighborhoods don't touch. I think the Moran's I functions use a matrix like this when they estimate Moran's I. I can estimate Moran's I, but I can't figure out how to extract the matrix. I've been trying to do this for months and I just can't get it.

Thank you so much. The R project is an invaluable gift to the scientific and statistical community.

Steve

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