Macro defining some mappings:
ARGMIN, ARGMIN1, ARGMIN2, ARGMAX, ARGMAX1, ARGMAX2
This is not a function. Calling MAPPINGTOOLS just loads the above mappings ready to use. They can be called as J = A*ARGMIN in which A is a dataset or an array of doubles. It returns a vector of object indices J pointing to the feature (column) with the lowest value.