Take a look at this document http://geodacenter.asu.edu/system/files/spdepintro.pdf
The standard steps are require(maptools) readShapepoly require(spdep) poly2nb nb2listw or nb2mat Nikhil Kaza Asst. Professor, City and Regional Planning University of North Carolina nikhil.l...@gmail.com On Apr 28, 2010, at 11:43 PM, Francisco Silva wrote: > Hi folks, > > I am trying to do an spatial econometric model and I need a wheigt > matrix. > I have tried so many times to do such thing in R, but I did not find > the way. > I would like to know, if is possible to do the matrix in R? > If yes, how does i should do? Please, send the steps because I have > tried with so many packages and always i get wornings messages. > If somebody can help me I can send the .shp file to see how this work. > I know how to read a shape file and even plot maps, but i did not find > the way to construct an adjascency matrix. > > Thanks a lot, > Francisco Gildemir Ferreira da Silva > > _______________________________________________ > R-sig-Geo mailing list > R-sig-Geo@stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/r-sig-geo [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
