Hi All, I have read different shapefiles that are contiguous and that have different column names with the function "readShapePoly".
example : noumea <- readShapePoly(noumea.file, IDvar = "NOUMEA2_ID", proj4string = crs_rgnc) and dumbea <- readShapePoly(dumbea.file, IDvar = "DUMBEA2_", proj4string = crs_rgnc) Now I would like to create a new shapefile with all the polygones in the "noumea" and "dumbea" spatial polygone data frames. I tried : spRbind(noumea, dumbea) I get this message error : Error in spRbind(as(obj, "SpatialPolygons"), as(x, "SpatialPolygons")) : non-unique polygon IDs I have tried with the function rbind() I have tried to set noumea$NOUMEA2_ID and dumbea$DUMBEA2_ with unique values but I still get the same message error as if the function spRbind was not using those two columns as polygons ID... Does anyone know how I can fix this problem ? Thanks a lot Nicolas Nicolas Degallier IRD UMR182 Laboratoire d'Océanographie et du Climat, Expérimentation et Approches Numériques (LOCEAN) Tour 45-55, 4e ét., case 100, 4 place Jussieu 75252 Paris Cedex 5 France tél: (33) 01 44 27 51 57 fax: (33) 01 44 27 38 05 E-mail: <[email protected]> pdf reprints: http://www.locean-ipsl.upmc.fr/~ndelod/production/ Skype:"xuxaxu" _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo
