search for: bdry2

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2010 May 06
1
extracting coordinates from SpatialPolygonsDataFrame using slot functions
...$verts)-1),1], y=bdry$Shapes[[1]]$verts[1:(nrow(bdry$Shapes[[1]]$verts)-1),2] ) bdry.owin <- owin( poly=bdry.poly ) grid <- gridcentres( bdry.owin, 200, 200 ) I've run across the following problem where I now need to use the readShapePoly function in the sp package: bdry2 <- readShapePoly( "../../data/boundary.shp" ) which requires the elements be accessed using the slot function? My question, after trying to find the answer on-line and in some docs, is how? Help? Also, I'm not sure I get the r-help digests, so if someone can shed light on the...