r.mcda.electre - GRASS GIS manual

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NAME

r.mcda.electre - Multicirtieria decision analysis based on ELECTRE method

KEYWORDS

raster, MCDA

SYNOPSIS

r.mcda.electre

r.mcda.electre --help

r.mcda.electre criteria=string[,string,...] weight=float[,float,...] concordance=string discordance=string [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

--overwrite: Allow output files to overwrite existing files
--help: Print usage summary
--verbose: Verbose module output
--quiet: Quiet module output
--ui: Force launching GUI dialog

Parameters:

criteria=string[,string,...] [required]: Input geographics criteria in information system
weight=float[,float,...] [required]: Criteria weight(s) (w1,w2,..,wn)
concordance=string [required]: concordance output map; Default: concordance
discordance=string [required]: discordance output map; Default: discordance

DESCRIPTION
NOTES
CITE AS
REFERENCE
SEE ALSO
AUTHORS

DESCRIPTION

r.mcda.electre is the implementation of the ELECTRE multicriteria algorithm in GRASS GIS environment. It is one of the available tools in the r.mcda suite. It requires as an input the list of raster representing the criteria to be assessed in the multicriteria evaluation and the vector of weights to be assigned. Every single cell of the GRASS region is considered as one of the possible alternatives to evaluate and it is described with the value assumed for the same cell by the raster used as criteria. There are two output files. One represents the spatial distribution of the concordance index, the other one of the discordance index. The optimal solution is the one presenting the maximum concordance value and the minimum discordance value at the same time.

NOTES

The module does not standardize the raster-criteria. Therefore, they must be prepared before by using, for example, r.mapcalc. The weights vector is always normalized so that the sum of the weights is 1.

CITE AS

Massei, G., Rocchi, L., Paolotti, L., Greco, S., & Boggia, Decision Support Systems for environmental management: A case study on wastewater from agriculture, Journal of Environmental Management, Volume 146, 15 December 2014, Pages 491-504, ISSN 0301-4797

REFERENCE

Roy, B. (1971) Problem and methods with multiple objective functions Mathematical programming 1, 239-266.

Roy, B. (1990): The outranking approach and the foundations of Electre methods , Document du LAMSADE, Paris.

Janssen R. (1994) - Multiobjective decision support for environmental management, Kluwer Academic Publishers.

GRASS Development Team (2015)

AUTHORS

Antonio Boggia - Gianluca Massei
Department of Economics and Appraisal - University of Perugia - Italy

SOURCE CODE

Available at: r.mcda.electre source code (history)