[GRASS-user] r.kappa

[Markus Neteler]

On Thu, Feb 28, 2013 at 3:49 PM, Rebecca Stedham
<rlstedham at btinternet.com> wrote:
> Hi there,
>
> Today I am using r.kappa to test a LANDSAT classification. The module runs
> fine, but I am unable to save the error matrix and kappa to a file.
>
> I have tried both with the GUI and in python script.
>
> I am running it using NX client and so my file paths have '\' symbols to
> represent directories. When I use the 'browse' icon to locate the correct
> directory/file, grass automatically uses '\'.  However I am receiving the
> error msg:
>
> Illegal filename. Character </> not allowed.

There must be something lacking in the
ask() function:
http://trac.osgeo.org/grass/browser/grass/branches/releasebranch_6_4/lib/gis/ask.c#L345

> Also  - it doesn't seem clear whether I have to have created a text file to
> store this information beforehand or whether it does this.

It should definitely do this.

Some Windows specific directory separator is needed,
perhaps similar to
http://trac.osgeo.org/grass/changeset/55135/grass/branches/releasebranch_6_4/lib/g3d

I think: worth a ticket...

Markus