replValue-class: Virtual Class "replValue" - Simple Class for subassignment Values
Description
The class "replValue" is a virtual class used for
values in signatures for sub-assignment of "Matrix" matrices. In fact, it is a simple class union (setClassUnion) of
"numeric" and "logical" (and maybe "complex" in
the future).
Objects from the Class
Since it is a virtual Class, no objects
may be created from it.