On Wed, Apr 14, 2010 at 7:41 PM, Luisa Peña <luisapena1...@gmail.com> wrote: > Greetings > I'm freely following this tutorial > (http://grass.osgeo.org/wiki/Image_classification) and I'm getting a odd > error. > I'm sending this command: > i.gensigset trainingma...@landsat group=g...@landsat subgroup=sub > signaturefile=sig maxsig=5
Do you really need all @landsat indications? > and I get this: > Finding training classes... > 5 classes found > Reading raster maps... > Clustering class 1 (1753 pixels)... > Number of subclasses is 5 > Clustering class 2 (2810 pixels)... > Number of subclasses is 5 > Clustering class 3 (2772 pixels)... > Number of subclasses is 5 > Clustering class 4 (2177 pixels)... > Number of subclasses is 5 > Clustering class 5 (6060 pixels)... > Number of subclasses is 5 > unable to create signature file sig for subgroup sub of group g...@landsat > ERROR: Unable to create signature file <sig> > > I think it might have somethibg to do with i.group because everytime I open > i.group the followiong is printed to the Command output: > Invalid element 'g...@landsat@landsat' > Invalid element 'g...@landsat@landsat' > Invalid element 'g...@landsat@landsat' > Invalid element 'g...@landsat@landsat' > All these are groups that I have made > > If I do group -l > group=g...@landsat I get: > > group <gr06> references the following raster maps > ------------- > <lsat7_2000...@landsat> <lsat7_2000...@landsat> > <lsat7_2000...@landsat> <lsat7_2000...@landsat> > <lsat7_2000...@landsat> > ------------- > i.group complete. > > What might be wrong? I dunno but perhaps the @landsat isn't properly stripped off in some cases. Could you retry to make the group etc in the landsat mapset itself in order to understand if @landsat makes the difference? Markus _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
