search for: india_state

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2011 Jul 09
1
SpatialPolygonsDataFrame holes problem
...tell.com/index.php?option=com_remository&Itemid=159&func=fileinfo&filecatid=115&parent=category Problem: I want to extract centroid coordinates for each State, but there is some coding problem with the shapefiles that prevents this. #Code: #After extracting the shapefiles from the india_state.zip file, then: library(maptools) library(sp) library(rgeos) india <- readShapeSpatial("india_state.shp") #Some states are made up of more than one polygon. #State names are in the NAME column of the dataframe india at data plot(india[india$NAME == "Tamil Nadu",], col = 1:8)...