Get the reduced cost

回答済み

Cong Jin

2024年08月02日 15:43

• 
• 

Hello. How to get the reduced cost of the slack variable in the corresponding constraint when calling gurobi in python? Thank you.

関連

• Sensitivity

0

• 

  Jaromił Najman

  • Gurobi Staff

  2024年08月05日 12:19

  You might be looking for the article What are Attributes? In particular, you are probably looking for the RC variable attribute.

  0
• 

  Cong Jin

  2024年08月06日 08:45

  • 
  • 

  Hello, the RC attribute in i query to gurobi may be what I need, but I haven't found the sample code of RC attribute. Could you show me a related example? Thank you very much.

  0
• 

  Matthias Miltenberger

  • Gurobi Staff

  2024年08月06日 09:46

  Please check out this section of our documentation: Attribute Examples - Optimizer Reference Manual - Gurobi Optimization

  0
• 

  Cong Jin

  2024年08月06日 11:40

  • 
  • 

  I'm very sorry that I didn't find the relevant example. Could you help me show an example of RC attribute?

  0
• 

  Jaromił Najman

  • Gurobi Staff

  2024年08月06日 12:45

  The RC attribute is a variable attribute, i.e., it works the same way as, e.g., the LB attribute.

  for v in model.getVars():
      print(v.RC)

  0
• 

  Cong Jin

  2024年08月06日 15:22

  • 
  • 

  Hello, I put the above code into my code, but there is a bug. What is the reason?

  

  0
• 

  Jaromił Najman

  • Gurobi Staff

  2024年08月06日 18:06

  The screenshot you provided is unfortunately not enough to understand the issue. Please provide a minimal reproducible example.

  0
• 

  Cong Jin

  2024年08月07日 06:15

  • 
  • 

  How can I get the RC value mentioned in the figure below, where X and H are variables?

  

  0
• 

  Jaromił Najman

  • Gurobi Staff

  2024年08月07日 07:11

  Please refer to my comment in your other post.

  0
• 

  Cong Jin

  2024年08月07日 07:33

  • 
  • 

  Thank you very much for your help.

  0

サインインしてコメントを残してください。