RXMCDA (version 1.5.5)

getCriteriaComparisons: Get comparisons of criteria

Description

Gets comparisons of criteria, stored in the tag, from an XML tree written according to the XMCDA standard.

Usage

getCriteriaComparisons(tree, criteriaIDs, mcdaConcept = NULL)

Arguments

tree

Object containing the XMCDA XML tree.

criteriaIDs

A vector containing the IDs of the criteria to be considered for the extractions.

mcdaConcept

A string containing the specific mcdaConcept attribute which should be searched for.

Value

The function returns a list structured as follows:

--

The first elements contain the found in as matrices. These elements are named according to the mcdaConcept attribute if it can be found. Each line of each matrix corresponds to one constraint of the type "criterion g1 is preferred to criterion g2 with preference threshold delta". A line is structured as follows: the first element encodes the index of criterion g1 in criteriaIDs, the next element encodes the ID of criterion g2, and the last element contains the preference threshold delta.

status

Either OK if all the tags could be correctly read, or the description of the error.

Examples

tree <- xmlTreeParse(system.file("extdata",
                                 "testFile.xml",
                                 package="RXMCDA"), 
                     useInternalNodes=TRUE)

critIDs <- getCriteriaIDs(tree)

comps <- getCriteriaComparisons(tree, critIDs[[1]])