Hi, I have to formulate a problem in mathprog where a variable can be both integer type and continuous type based on index.
Let me give an example to further illustrate this. I have two sets of items: set itemInteger; set itemContinuous; I need to define a variable, awardQuantity, on these sets so that for items in the set itemInteger, it is of type Integer and for items in set itemContinuous, it is of type continuous. I know I can define two different variables: var awardQuantityInt[i in itemInteger], integer; var awardQuantityCont[i in itemContinuous]; But that is not what I am looking for. I want a single variable handling both types. I would really appreciate it if I can get some help on it. I have been trying to find an answer to this for a few days now. Thanks, Anku
