How do I model multiple conditional statements in gurobi?

ユーザーの入力を待っています。

Yonghyun Choi

2022年03月27日 14:07

I want to use two if statements using binary variables, but I don't know how to use them.

Can two if statements are used in Gurobi? Examples are as follows.

A, B, C, and D are integer variables.

if (A > B) and (C>D) then,

   CASE 1

else if (A > B) and (C<D) then,

   CASE 2

else if (A < B) and (C>D) then,

   CASE 3

else 

   CASE 4

0

• 正式なコメント

  

  Simranjit Kaur

  • Gurobi Staff

  2025年11月16日 23:41

  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.
• 

  Jonasz Staszek

  • Community Moderator

  2022年03月28日 07:00

  • 
  • 
  • 

  Hi Yonghyun,

  this will depend on the Gurobi API you choose.

  I assume that A, B, C, D are Gurobi integer variables. Now, to retrieve their values, you must have successfully optimized first, as otherwise, the following code will throw an error.

  For Python, it could look as follows:

  # we assume that A, B, C and D are pre-defined Gurobi variablex
  if (A.X > B.X) and (C.X > D.X):
     # CASE 1
  elif (A.X > B.X) and (C.X < D.X):
     # CASE 2
  
  elif (A.X < B.X) and (C.X > D.X):
     # CASE 3
  else:
     # CASE 4

  Hope this helps. 

  Best regards,
  Jonasz

  0

投稿コメントは受け付けていません。