How to add a matrix variable to a matrix/array?

ユーザーの入力を待っています。

Jacob Jin

2021年09月04日 07:31

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I have defined an array and a matrix variable in the concrete model. Then I add the constraint below. However,  "Incompatible dimension" is casted. What's wrong with my code?

y_i = [[3, 2, 1, 1, 2],
[3, 2, 1, 1, 2],
[3, 2, 1, 1, 2]]

## y_ii's dimension: B * 1, i = 1, ..., N

y_ii = locals()
for i in range(N):
    y_ii['y_'+str(i+1)+str(i+1)] = m.addMVar(len(B),
                                   name = 'y_{}{}'.format(i+1, i+1))
for i in range(N):
    ### (1c)
    m.addConstr(y_ii['y_'+str(i+1)+str(i+1)] == y_i[i])

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• 正式なコメント

  

  Simranjit Kaur

  • Gurobi Staff

  2025年06月23日 02:48 編集済み

  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 why not try our AI Gurobot?.
• 

  Jaromił Najman

  • Gurobi Staff

  2021年09月06日 11:37

  Hi Jacob,

  Please post a minimal working example reproducing this issue. In particular, in your code snippet the values of \(N\) and \(B\) are missing.

  Best regards,
  Jaromił

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