Hello,
I just finished programming a GRASS module to perform
multi-criteria concordance and discordance analysis on
map data. You specify variables (from raster layers)
with optional reclass rules, and a set of scenarios
consisting in priority values for each variable. The
program outputs a "concordance map" or "discordance map"
for each scenario, expressing how much each existing
configuration of values resulting from the data fits
into the specified scenario.
I wrote the program thinking the idea was new (as you
may guess I am not an experienced GIS-man) for a small
application, and discovered that IDRISI already has
something similar. Sure the idea is not new and my hopes
for a new publication vanish; nevertheless, I don't think
GRASS has one such module, so at least I can provide an
useful service to the GRASS community. At present the
program uses some libraries I developed under contract
so I cannot provide sources right now (but I will as soon
as possible); it is C++ and does not quite adhere to
GRASS programming standards. At the moment I can provide
SunOS 4.1.x binaries and minimal documentation to anyone
who is interested. I'd be interested in proposals to make
the tool more useful and maybe work on some collaborative
publication.
I work for free at the Institute as Italians usually do;
I usually visit here every day so I am quite prompt in
responding to email. Please get in touch if interested
in obtaining the program. When everything is polished up
and copyright issues are solved, I'll upload the sources
to moon.cecer.army.mil.
With best New Year's wishes to you all.
ferdinando
--
Ferdinando Villa, Ph.D.
Institute of Ecology Direct phone: +39-521-905615
University of Parma FAX: +39-521-905402
Viale delle Scienze Home phone (voice mail): +39-521-604013
43100 Parma, Italy e.mail: villa@eagle.bio.unipr.it