Indexing issue

[Sarthak Khatri]

Hello,

I am currently working on a  Generalized Lot Sizing Problem where I defined a set with a list of cities and then have choose the production and warehouse location from that set. But the warehouse and production location should be different.

set A;

param p{i in A};

param w{i in A};

I am facing difficulty in writing code for that.

Can anyone help me with that?

               

           

       

      

[AMPL Google Group]

Can you provide some more information?

• Is A the set of cities?
• Do you want to choose just one production location and one warehouse location from the set of cities? Or do you want to choose a production location and a warehouse location to be associated with each city -- but maybe different locations for different cities?
• Do you choose the production and warehouse location before you solve the optimization problem? Or are those locations to be chosen by the solver when it optimizes the objective function?

--
Robert Fourer
am...@googlegroups.com

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