On Fri, Oct 24, 2008 at 10:57 AM, Manuel Seeger <[EMAIL PROTECTED]> wrote: > Hello all, > > I using grass 6.3.0 on a 64 machine (ubuntu 7.10) > When applying i.gensig on a set of 20 rasters for defining 6 different > groups I get the following output: > Finding training classes ... > 6 classes. > Calculating class means ... > Calculating class covariance matrices... > > Signature [1] not invertible. > > Signature [2] not invertible. > > Signature [3] not invertible. > > Signature [4] not invertible. > > Signature [5] not invertible. > > Signature [6] not invertible. > > Writing signature file [DRP_Zemmer] ... > > Done. > > The problem is: > the signature file is empty. > it may be related to the info Signature [1] not invertible. But I don't know > what GRASS wants to tell me.
I am not sure what happens - apparently imagery/i.gensig/can_invert.c fails. Could you try to reduce the number of input maps for a test? Markus _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user