an R object representing a partition or hierarchy of
objects.
Value
A list inheriting from "cl_classes_of_objects" of vectors
indicating the classes.
Details
For partitions, the classes are the equivalence classes
(clusters) of the partition; for soft partitions, the classes
of the nearest hard partition are used.
For hierarchies represented by trees, the classes are the sets of
objects corresponding to (joined at or split by) the nodes of the
tree.