Obtain optimal assignment

[alexberndt]

Hi Gabriel

Thanks for a great project!

I am struggling to find a way to obtain the variables' assignments once I have solved the example knapsack problem and obtained an optimal solution. Somehow I cannot access the decision variables' values leading to the obtained optimal objective value.

I am assuming there must be a way to obtain the values of each integer variables in the results object, but I cannot figure out how. I have gone through the documentation, but can't seem to find anything. Any help? :)

[ghackebeil]

Hi @alexberndt. The knapsack selections are available in the state attribute of results.best_node. The BinaryKnapsack class stores the list of choices at each node in the last entry of the state tuple.

[ghackebeil]

Sorry this isn't documented very well. I'll add some additional comments to that example before closing this ticket.