writing tiff/geotiff in R
On Wed, 11 Jun 2008, Laura Poggio wrote:
Dear list, I managed to read an image in R and to make various elaborations on it, mainly clustering. Now I would like to save the results I got as tiff or geotiff. I found a lot of different examples, but none seems to work. Any suggestions on tutorials or code examples for saving clustering results as tiff?
First you need to make your object into a SpatialGridDataFrame, then writeGDAL in rgdal simply works. But you need to say what structure your object has - matrix or vector etc. Then define a GridTopology object to suit, add a coordinate reference system if appropriate. Maybe the sp package function image2Grid() will help? Roger
Thank you very much in advance LP [[alternative HTML version deleted]]
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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