Hello, I have an .RData file which is a SpatialPolygonsDataFrame a France,
I only need, for now, to work on two areas: Burgundy and Centre, I would like to extract those two areas from the France file, I tried, naïvely, Centre <- France[France$NAME_1=="Centre", ] but it didn't work out, (NAME_1 is the variable where are stored the names of the French Regions) any idea ? Sylvain PS: I found quite a lot of information on points, ploygons, or lines, but few on spatialpolygonsdataframe besides they are "a set of spatial polygons", Any reference on their inside structure ? _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
