I'm trying to implement some sort of production optimization model using the concept of column generation.
In the declaration section of AIMMS I declared the master and pricing problem, however I am not able to use the 'ShadowPrice' property of one of my constraints, i.e., the suffix turns red if I want to use it in my pricing model.
Nothing I am trying does look like to work out and I can't find any other questions like this.
Ïs there anyone who could help me out? I would appreciate this very much! Thanks in advance!
Attached is a .zip with my model.