Kaiyu Wei

Gurobi-versary
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Recent activity by Kaiyu Wei Recent activity Votes
  • multiple conditions in indicator constraint

    Answered

    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...

  • KeyError: 'Missing constraint index'

    Answered

    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....

  • No module named 'gurobipy'

    Awaiting user input

    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...