how can I get the value of auxiliary variables?

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Yunxue Lu

2022年07月25日 12:35

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Here is my code:

m.addConstr( c <= (weights @ input).squeeze().tolist(),'c0')

where the weights and input are numpy.array() with shape of (1,10) and (10,1). several elements of input array involves the decision variable.

after solve the model, I want to know that how I can get the input array with the optimized variable?

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  Simranjit Kaur

  • Gurobi Staff

  2025年11月16日 23:31

  This post is more than three years old. Some information may not be up to date. For current information, please check the Gurobi Documentation or Knowledge Base. If you need more help, please create a new post in the community forum, or try Gurobot, our chatbot interface offering instant, expert-level support.
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  Maliheh Aramon

  • Gurobi Staff

  2022年08月06日 01:27

  Hi Yunxue, 

  To access the values of decision variables in the current solution, you need to use the variable attribute X.

  More specifically, you can iterate through elements of the \(\texttt{input}\) array and if the element is a Gurobi Var object, you can then retrieve its value using the X attribute.

  Best regards,

  Maliheh

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