> -----Original Message----- > From: [email protected] [mailto:r-sig-geo-bounces@r- > project.org] On Behalf Of Roger Bivand > Sent: Tuesday, May 24, 2011 2:03 PM > To: Nick Matzke > Cc: [email protected] > Subject: Re: [R-sig-Geo] coarsening a grid > > On Tue, 24 May 2011, Nick Matzke wrote: > > > Hi all, > > > > Maybe this is obvious but I can't seem to find anything on it. > > > > I have loaded and displayed a small DEM grid (6 MB) with readGDAL. > > > > Is there an easy way to coarsen it or downsample it?
aggregate() in raster is useful/fast as well. > > You can downsample it when reading in, see the output.dim= argument to > readGDAL() and its use in the examples there. > > Roger > > > > > Cheers! > > Nick > > > > > > > > -- > 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: [email protected] > > _______________________________________________ > R-sig-Geo mailing list > [email protected] > https://stat.ethz.ch/mailman/listinfo/r-sig-geo _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo
