On Mon, 16 Nov 2009, Karl Ove Hufthammer wrote:
On Sun, 15 Nov 2009 19:52:48 +0100 (CET) Roger Bivand
<roger.biv...@nhh.no> wrote:
Do use readShapeSpatial() (or better readOGR() in rgdal)
Why (or how) is readOGR better?
Because it uses OGR, with an updated rather than frozen shapelib, and
reads the *.prj file of the shapefile bundle as well, which
readShapeSpatial() does not. On the other hand, readShapeSpatial() has
various extra arguments to tackle out-of-spec shapefile bundles.
With reference to other alternatives, the shapefiles package has not been
updated for three years, and importShapefile() in PBSmapping is built
around read.shape() from maptools to read into the classes used in that
package.
Roger
--
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.biv...@nhh.no
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