i,
im a french guy so excuse my english.
i try to do a supervised classification with grass but i have an error when
use i.maxlik
with i.class i create a sigfile. i.maxlik don't find this file...
howewer the file appear in the subgroup folder
have you some exemple with i.class and i.maxlik?
do you think its bug?
thanks
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On Fri, Oct 23, 2009 at 7:07 PM, nawak <nada81@laposte.net> wrote:
i,
im a french guy so excuse my english.
i try to do a supervised classification with grass but i have an error when
use i.maxlikwith i.class i create a sigfile. i.maxlik don't find this file...
I can confirm that it gives such a message (6.4.svn).
howewer the file appear in the subgroup folder
Right.
The problem is that i.maxlik apparently no longer writes the image
statistics. It used to work.
What I get (North Carolina example):
i.class lsat7_2002_20 group=lsat7_2002 subgroup=lsat7_2002 outsig=testsig
GRASS 6.4.0svn (nc_spm_08):~/grassdata/nc_spm_08/neteler/group/lsat7_2002/subgroup/lsat7_2002/sig/
cat testsig
#
#water
525
#terrain
897
-> no statistics!
Now this would follow but is useless due to the broken sigfile:
i.maxlik group=lsat7_2002 subgroup=lsat7_2002 sig=ciao class=class
Its error message is unhelpful.
In the i.class ChangeLog I don't see relevant changes, so it must be
a bug in I_write_signatures() perhaps?
Markus