getMobiusCapacities: Get Mobius capacities
In paterijk/RXMCDA: Functions to Parse and Create XMCDA Files

Description Usage Arguments Value Examples

Gets Mobius capacities, stored in the <criteriaValues> tag, from an XML tree written according to the XMCDA standard.

1 2	getMobiusCapacities(tree, criteriaIDs, numberOfCriteria, kadditivity, mcdaConcept = NULL)

`tree`	Object containing the `XMCDA` XML tree.
`criteriaIDs`	A vector containing the IDs of the criteria to be considered for the extractions.
`numberOfCriteria`	The total number of criteria to be considered.
`kadditivity`	The level of k-additivity to be considered.
`mcdaConcept`	A string containing the specific `mcdaConcept` attribute which should be searched for.

The function returns a list structured as follows:

`–`	The first elements contain the `<criteriaValues>` found in `<tree>` as capacities (see `kappalab` package for details). These elements are named according to the `mcdaConcept` attribute if it can be found.
`status`	Either OK if all the `<criteriaValues>` tags could be correctly read, or the description of the error.

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

critIDs <- getCriteriaIDs(tree)

capa <- getMobiusCapacities(tree, critIDs[[1]], 5, 5,
                            mcdaConcept="mobiusCapacity")