Thanks Moritz , great tip!
I'm working in a module that implemented ELECTRE algorithm.
I've just finisced a module named /r.roughset/ for knowledg discovery
with rough set based on rough set library. You can download the source
code from grass wiki
(http://grass.osgeo.org/wiki/GRASS_AddOns#r.roughset) and I'm happy if
sameone caould try it and report me tips or bugs.
Gianluca
Moritz Lennert ha scritto:
On 04/08/08 13:39, gianluca massei wrote:
Hy list,
I'm writing a C module for multiciriteria decision analysis in GRASS.
Great news ! I'm very interested in this.
If you haven't already, you might want to have a look at the old
r.infer and r.weight modules in grass5.4. Also see the GRASS news
article by Peter Löwe: http://grass.itc.it/newsletter/grassnews3.html.
Just one suggestion: it might be worthwhile thinking about error
handling/propagation in such a module...
I've a problem with doublevalue multiple answers processing.
The code is like that:
"
/ weight = G_define_option();
weight->key = "weight";
weight->type = TYPE_DOUBLE;
weight->required = YES;
weight->multiple = YES; weight->description = _("Criteria
weight(s) (w1,w2,..)");/
"
I'd like extract single value so, I tried this:
"
/ for(i=0;i<ncriteria;i++)
{
G_message(_("Peso %d : %lf"),i,weight->answers[i]);
}/
"
Not sure, but I think the ->answers are always string, so you have to
transform to float with atof:
G_message(_("Peso %d : %lf"),i,atof(weight->answers[i]));
Moritz
Database dei virus interno non c aggiornato.
Controllato da AVG - http://www.avg.com Versione: 8.0.138 / Database
dei virus: 270.5.10/1584 - Data di rilascio: 31/07/2008 12.00
_______________________________________________
grass-user mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/grass-user
