[GRASS-user] GRASS for Multi-criteria Analysis?

GRASS GRASS user
1 
Hi, Can I use GRASS for multi-criteria analysis? Please, where can I find information about?

Thanks, Marilena

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2

Interesting Marilena, I’ve done MCA in Idrisi sofwtare but not in GRASS. so I would like to know as well how it works in GRASS.

Debora

On Thu, Feb 26, 2009 at 9:26 AM, Marilena Yeguez <myeguez@hotmail.com> wrote:

Hi, Can I use GRASS for multi-criteria analysis? Please, where can I find information about?

Thanks, Marilena

Get news, entertainment and everything you care about at Live.com. Check it out!

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Debora M. De Freitas
ARC Centre of Excellence for Coral Reef
Studies and School of Earth and Environmental Sciences,
James Cook University, Australia
+61 7 47816282 (office)
+61 7 0421662669 (mobile)
SKYPE: debbiemf

3

hi,
you can find a set of mcda modules in https://svn.osgeo.org/grass/grass-addons/raster/mcda/. I've implemented ELECTRE, REGIME and Fuzzy (Yager) multi criteria method. There is also a module named r.roughset for rules extraction and map classification based on rough set theory.
feedback are very very welcome!

gianluca

Débora Freitas ha scritto:

Interesting Marilena, I've done MCA in Idrisi sofwtare but not in GRASS so I would like to know as well how it works in GRASS.

Debora

On Thu, Feb 26, 2009 at 9:26 AM, Marilena Yeguez <myeguez@hotmail.com <mailto:myeguez@hotmail.com>> wrote:

    Hi, Can I use GRASS for multi-criteria analysis? Please, where can I find information about?

    Thanks, Marilena

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Debora M. De Freitas
ARC Centre of Excellence for Coral Reef
Studies and School of Earth and Environmental Sciences,
James Cook University, Australia
+61 7 47816282 (office)
+61 7 0421662669 (mobile)
SKYPE: debbiemf
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4

On 26/02/09 08:45, g_massa wrote:

hi,
you can find a set of mcda modules in https://svn.osgeo.org/grass/grass-addons/raster/mcda/. I've implemented ELECTRE, REGIME and Fuzzy (Yager) multi criteria method. There is also a module named r.roughset for rules extraction and map classification based on rough set theory.
feedback are very very welcome!

Yes, please try those (sorry, Gianluca, haven't had time for this lately).

But if you are looking for "simple" MCA, i.e. just a weighted combination of criteria, r.mapcalc can be very useful. A colleague of mine has used that for introductory teaching for students. I can send you his exercice instructions (in French) if you are interested (or he'll do it himself if he's listening).

Moritz