[GRASS-user] problem with image classification

I am new to GRASS and am trying to learn how to classify data using the NC sample dataset. My problem is with the GUI interface. I create a group and subgroup, and I have queried them to make sure the subgroup is there and has the three bands specified. However, when I do the cluster option using the GUI, I can never get it to recognize the subgroup. I can pull down the group name, then I can pull down the subgroup name, but at the bottom, it consistently says icluster … group=lsat7_2000@landsat subgroup= … In other words, it is not getting the subgroup name from the pull-down.

I can make the classification work by typing out the commands, but I am using this for class and the GUI method would sure be helpful.

Hi,

2010/11/17 Ringle, Bill <biringle@davidson.edu>:

I am new to GRASS and am trying to learn how to classify data using the NC
sample dataset. My problem is with the GUI interface. I create a group and
subgroup, and I have queried them to make sure the subgroup is there and has
the three bands specified. However, when I do the cluster option using the
GUI, I can never get it to recognize the subgroup. I can pull down the group
name, then I can pull down the subgroup name, but at the bottom, it
consistently says icluster ..... group=lsat7_2000@landsat
subgroup=<required> ..... In other words, it is not getting the subgroup
name from the pull-down.

which version of GRASS? wxGUI or TCL/TK GUI?

Martin

--
Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa