# Maliheh Aramon

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• Hi Maik,    Copying your snippet in Python gives me a different error message:  gurobipy.GurobiError: Variable has not yet been added to the model   The reason is that the sum is over $$\texttt{di... • Hi Benjamin, You might find the documentation of the Cluster REST API useful. If you are using the Gurobi Cluster Manager, the complete documentation on REST API can be accessed at Help -> REST API... • Hi Alexander, To warm start an LP in the Gurobi Optimizer using a start vector, you need to set both PStart for every variable and DStart for every constraint. I can think of two alternatives that... • Hi Ahmed, Yes, if the quadratic expressions include at least one binary variable, the Gurobi Optimizer can be directed to state these expressions in different ways controlled by the parameter PreQ... • Hi Tanmoy, Do you mean your model formulation is parametrized based on a given \(p$$ value? Gurobi Callbacks provide some flexibility such that you can add new lazy constraints to the model by the...
• Hi Wei, I just tested this by running the example problem $$\texttt{mip1.m}$$ in MATLAB R2021b on macOS and I was able to save the log file. I explicitly set the $$\texttt{params.logfile}$$. Do you...
• Hi Kim, Your code is a bit complicated and I cannot read through it easily. As far as I understand, you are trying to implement the following mathematical model: Notation $$G = (V, E)$$: A graph ...
• Hi Ahmad,  After setting the parameter SolutionNumber to the $$i$$-th best solution, the value of each variable can be accessed by querying the attribute Xn and not X (this attribute always reports...