library(RXMCDA)
tree <- xmlTreeParse(system.file("extdata","testFile.xml",package="RXMCDA"), useInternalNodes=TRUE)
altIDs <- getAlternativesIDs(tree)
altVals <- getAlternativesIntervalValues(tree, altIDs[[1]], mcdaConcept="alternativesIntervalValues")
stopifnot(all.equal(dim(altVals[[1]]), c(2,3)))
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