Listing all different values for an attribute
I would like to be able to list all the different values for an attribute. For example:
Rapidminer GUI output would be in range column: L.A (3) Boston(1) Cleveland(1) New york(1)
to get the number of times that L.A appears I can use Statistics.Count but I need to have the city name values isolated (L.A, Boston Cleveland, and New York)
I need to do it with rapidminer API ... is there any function like .... List l = Attribute.getDifferentValues() ?
Thx a lot