Taylor Leonard

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  • Taylor Leonardさんが投稿を作成しました:

    Indicator Constraint with Multiple Conditions

    回答済み

    I 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

  • Taylor Leonardさんがコメントを作成しました:

    Tobias, Your explanations have been extremely helpful and I think definitely pointed me in the right direction.   Thank you! Taylor

  • Taylor Leonardさんがコメントを作成しました:

    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...

  • Taylor Leonardさんが投稿を作成しました:

    Column Generation Explanation

    回答済み

    Hello, 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...

  • Taylor Leonardさんがコメントを作成しました:

    Thank you for the responses, this helps a ton!

  • Taylor Leonardさんが投稿を作成しました:

    Adding Range constraints versus linear constraints

    回答済み

    Hello, 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...

  • Taylor Leonardさんがコメントを作成しました:

    Also, is it possible to build a problem in gurobi and then retrieve it's A, b, c matrices and vectors?

  • Taylor Leonardさんが投稿を作成しました:

    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...

  • Taylor Leonardさんがコメントを作成しました:

    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 ...

  • Taylor Leonardさんが投稿を作成しました:

    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...