package for writing shapefiles from SpatialPolygons?
On Thu, 31 Aug 2006, Michael Sumner wrote:
What is a shapefile? It has a *.shp, a *.shx, _and_ a *.dbf at least. So you can't go from a SpatialPolygons object to a shapefile, it has to be SpatialPolygonsDataFrame, even if the only column in the data frame is just a holder. So create a data frame (with row names equal to the Polygons ID values), make a SpatialPolygonsDataFrame, and writePolyShape().
Oh sorry, I had missed that "writePolyShape" function. It's aliased to its read counterpart, and I thought I was seeing write.polylistShape.
I'll split it out if you like - in the help.start() browser based help system, each alias is listed separately, so you would have seen it there.
Thanks!
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Roger Bivand Economic Geography Section, Department of Economics, Norwegian School of Economics and Business Administration, Helleveien 30, N-5045 Bergen, Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43 e-mail: Roger.Bivand at nhh.no