Sander Mertens
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Recent activity by Sander Mertens-
Retrieve a specific subset value of variables
AnsweredHello, Is there a way to retrieve the value of a subset from a specific variable within Gurobi?For instance, allot of X variables are created in the form of X[a,b,c,t]. After optimization, I want t...
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IP model takes too long to solve
AnsweredI have a pure integer problem which takes very long to solve (I don't know the exact time, but after times over 12 hours there was still no solution).The model has a size of:143,442 rows, 161,547 c...
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Unable to model constraint
AnsweredI've tried everything to add a constraint to my model, but I just can't seem to get it to work. The constraint I'm trying to add is: In my model, t is defined as a list of time points where the las...
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Dependent variables
AnsweredHi, I was wondering how dependent variables should be handled within Gurobi. For instance, the decision variable in the model is X_{t}. Another variable, S_{t} is dependent on the value of the deci...
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Keyerror in objective function
AnsweredCurrently I'm trying to solve my fist optimization problem with Gurobi, however I encountered the following keyerror after adding the objective function to the model: KeyError: ((0.0, 0.0, 0.0), 0...