Arguments
validationType
Character string specifying the type of partition
generated, either 'TVH' or 'CV'.
holdoutPct
Integer, giving the percentage of data to be used
as the holdout subset.
partitionKeyCols
Character string specifying the name or names of
the variables used in defining the group partition.
reps
Integer, specifying the number of cross-validation folds to
generate; only applicable when validationType = 'CV'.
validationPct
Integer, giving the percentage of data to be used
as the validation subset.