Kaiyu Wei

Gurobi-versary
First Question
First Comment
  • Total activity 7
  • Last activity
  • Member since
  • Following 0 users
  • Followed by 0 users
  • Votes 0
  • Subscriptions 3

Activity overview

Latest activity by Kaiyu Wei

  • Kaiyu Wei created a post,

    multiple conditions in indicator constraint

    Answered
    1. Community
    2. Modeling

    Hi there, I'm working on a vehicle routing problem, in which a vehicle need to pick up amounts of things in some nodes. Except for meeting the time windows of each nodes, it is also required that t...

    • Kaiyu Wei
    • Edited
    • 2 followers
    • 1 comment
    • 0 votes

  • Kaiyu Wei commented,

    1. Community
    2. Programming
    3. KeyError: 'Missing constraint index'

    Eli Towle Dear Eli, Thank you, it works!

  • Kaiyu Wei created a post,

    KeyError: 'Missing constraint index'

    Answered
    1. Community
    2. Programming

    Hi there, I have a problem when I try to add a constraint into a model of vehicle routing problem. Here is my code: # Constraints controlling the number of going into and out of a customer nodemdl....

    • Kaiyu Wei
    • 2 followers
    • 2 comments
    • 0 votes

  • Kaiyu Wei created a post,

    No module named 'gurobipy'

    Awaiting user input
    1. Community
    2. Systems

    Hi, I have installed the gurobi optimizer and got a license. Also I have installed the gurobipy module in Pycharm. As you can see we I want to import the moduel, there's a box indicating that the m...

    • Kaiyu Wei
    • Edited
    • 2 followers
    • 1 comment
    • 0 votes