This function differentiates the type of measurement variables.
util_dist_selection(measurements, meta_data)
data frame with one column for each variable in study data giving
IsInteger
, IsMultCat
and IsNCategory
IsInteger
contains a guess, if the variable contains integer values or is a
factor
IsMultCat
contains a guess, if the variable has more than two categories,
if it is categorical or ordinal
NCategory
contains the number of distinct values detected for the variable
study data
meta data, not yet used