org.decisiondeck.jmcda.services.outranking
Class OutrankingFull

java.lang.Object
  org.decisiondeck.jmcda.services.outranking.OutrankingFull

public class OutrankingFull
extends Object

Constructor Summary

OutrankingFull()

Method Summary

IAltZeroToOneMatrix	getOutranking(IProblemData data, ICriteriaWithThresholds thresholds, ICoalitions coalitions) Computes an outranking relation as in electre methods.
Double	getSmallestSep() Retrieves the smallest difference, in absolute value, between the majority threshold and any outranking value, and between any veto threshold and any difference of performance over the computed values, if sharp vetoes are to be used.
double	getTolerance()
boolean	isSharpVetoes()
void	setSharpVetoes(boolean sharpVetoes)
void	setTolerance(double tolerance)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

OutrankingFull

public OutrankingFull()

Method Detail

getOutranking

public IAltZeroToOneMatrix getOutranking(IProblemData data,
                                         ICriteriaWithThresholds thresholds,
                                         ICoalitions coalitions)
                                  throws InvalidInputException

Computes an outranking relation as in electre methods. The returned matrix is fuzzy iff the concordance or discordance relation is fuzzy and no cutting threshold is given.

For the input to be valid, the weights must be all provided, all evaluations must be provided, all criteria must have preference directions, the set of criteria on which thresholds are defined must be in the set of criteria, the preference threshold must be greater or equal to the indifference threshold for each criteria, the veto thresholds must be strictly greater than the preference threshold for each criteria. Otherwise, an InvalidInputException is thrown.

Parameters:

data - not null.

thresholds - the thresholds to use (missing thresholds are accepted). Not null.

coalitions - not null.

Returns:

not null.

Throws:

InvalidInputException - iff the input is not valid.

isSharpVetoes

public boolean isSharpVetoes()

setSharpVetoes

public void setSharpVetoes(boolean sharpVetoes)

getSmallestSep

public Double getSmallestSep()

Retrieves the smallest difference, in absolute value, between the majority threshold and any outranking value, and between any veto threshold and any difference of performance over the computed values, if sharp vetoes are to be used. Useful to check for possible numerical errors. The number is positive or nul. If using sharp vetoes, it represents the largest quantity that may be added or substracted from the majority threshold and all veto thresholds without changing the outranking relation.

Returns:

null if no outranking computation has been asked or no values were found when asked for an outranking (because of an empty set of alternatives).

getTolerance

public double getTolerance()

setTolerance

public void setTolerance(double tolerance)