Simon Bowly
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Recent activity by Simon Bowly-
Hi Artem, The syntax of a generator expression in Python is defined here: https://docs.python.org/3/reference/expressions.html#generator-expressions. It's syntactically very similar to a list compr...
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Hi Artem, I discovered that `model.addConstrs` does introspection on the provided generator frame. Indeed it does. This is really the only way to pull off this particular bit of magic; as you cor...
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This deprecation warning comes from newer versions of numpy, please see https://support.gurobi.com/hc/en-us/articles/16534198159889 for further information. Your code in the screenshot looks correc...
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Hi Richard, Currently, transpose is only implemented for MVars, not the corresponding expression objects (MLinExpr and MQuadExpr). You can work around it in this case by expanding out the transpose...
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Adding some extra detail here since this question comes up from time to time. The short answer is this: The usual simple tricks for parallelizing Python code do not work for the term-based modelin...
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Hi Saeid, If you are looking for a mapping in your model based on this dictionary, i.e. if x = 1 then y = 2, if x = 3 then y = 4, etc, then yes, you would need to introduce binary variables which e...
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Hi Saeid, No, you cannot use variables as keys. I am not sure I understand how this would help you here, could you clarify what you are trying to achieve? Maybe by writing down the mathematical for...
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Hi Madhushini, In your initial data setup, you should first create P_initialWt as a pandas series over the same Facility index as your other data: P_initialWt = pd.Series({'a': 0.1, 'b': 0.3, 'c': ...
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Hi Tanmoy, As noted in Specifying Multiple Objectives, a multiobjective model has only one sense. Negating the objective will certainly do the job, but a better alternative is to use weights. If ob...
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Hi Youssef, When you install gurobipy using pip, there is a trial license automatically included which is restrictive in terms of the size of the models it can solve. However, any other valid Gurob...