
Taylor Leonard
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Activity overview
Latest activity by Taylor Leonard-
Taylor Leonard created a post,
Indicator Constraint with Multiple Conditions
AnsweredI use indicator constraints regularly for their convenience, but is there currently a way to introduce an indicator constraint with multiple binary variable conditions? Thanks in advance, Taylor
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Taylor Leonard commented,
Tobias, Your explanations have been extremely helpful and I think definitely pointed me in the right direction. Thank you! Taylor
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Taylor Leonard commented,
Tobias, Thank you for the quick reply and excellent explanation. A couple additional questions. So my question comes up with the pricing problem then. All of these "fixed to zero" variables must...
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Taylor Leonard created a post,
Column Generation Explanation
AnsweredHello, I have a general question about column generation for large-scale systems. I understand the Master problem and the Restricted master problem for the subset of variables. After I set up the...
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Taylor Leonard commented,
Thank you for the responses, this helps a ton!
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Taylor Leonard created a post,
Adding Range constraints versus linear constraints
AnsweredHello, I'm dealing with a very large MIP and was wondering if there is any computational benefit to using range constraints versus adding constraints separately in the standard method? Thank you, T...
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Taylor Leonard commented,
Also, is it possible to build a problem in gurobi and then retrieve it's A, b, c matrices and vectors?
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Taylor Leonard created a post,
Simplex Method Callbacks
Hello, I have a custom simplex method which of course is way slower than Gurobi's performance. How do I go about incorporating Gurobi's callbacks for simplex operations within my code? I'm lookin...
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Taylor Leonard commented,
Hi Thomas, thanks for the reply. The error I get when optimizing a standard linear program with continuous variables is AttributeError: 'tupledict' object has no attribute 'RC' I understand that ...
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Taylor Leonard created a post,
Reduced Cost Attributes
Hello, I have a restricted master problem that runs just fine. But I'm not able to access the reduced cost or the shadow price attributes for the problem. All of the variables are continuous. I...