MPL for Windows Manual

6.3 Alias Indexes

In MPL you can now give a defined index another name. This is called an alias index and is used to facilitate repeated use of the same index in a vector, for example, in transportation problems. For instance:

    INDEX
        location   := (A,B,C,D,);
        dest       := location;
        source     := location;

This expression defines the source and dest indexes as an alias index of the location index and allows you, for example, to define the following variable:

    DECISION VARIABLES
        ship[source,dest]