getCategoriesIntervalValues: Get interval values related to categories
In RXMCDA: Functions to Parse and Create XMCDA Files

Description Usage Arguments Value Examples

Gets interval values related to categories, stored in the <categoriesValues> tag, from an XML tree written according to the XMCDA standard.

1	getCategoriesIntervalValues(tree, categoriesIDs, mcdaConcept = NULL)

`tree`	Object containing the `XMCDA` XML tree.
`categoriesIDs`	A vector containing the IDs of the categories to be considered for the extractions.
`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 matrices representing each an <categoriesValues>. Each line of each matrix corresponds to an element of the type "the interval value assigned to category c1 is [x, y]". A line is structured as follows: the first element encodes the index of the ID of category c1 in categoriesIDs, the second element encodes the value x and the third element encodes the value y. These elements are named according to the mcdaConcept attribute if it can be found.

status

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

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

categoriesIDs <- getCategoriesIDs(tree)
intervalValues <- getCategoriesIntervalValues(tree, categoriesIDs[[1]])