Chaolong Chen

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Latest activity by Chaolong Chen
  • Chaolong Chen commented,

    Thank you so much for your help. Can you explain briefly what ScenNRhs does? I am not certain how the ScenNRhs behaves. The documentation says it changes the RHS of the linear constraint. But if th...

  • Chaolong Chen commented,

    Thank you for your reply. The second model is built based on the first model, with the only change being adding the percentage_variations and the for-loop. The input parameters are the same. I thou...

  • Chaolong Chen created a post,

    Solution time drastically increased when in a loop?

    Answered

    I have a MILP model, in base scenario it can be solved within 10 seconds, see log: Gurobi 10.0.1 (mac64[arm]) logging started Mon Sep 18 17:43:26 2023Set parameter LogFile to value "base_scenario/r...

  • Chaolong Chen created a post,

    Constraint on decision variables in a multi period scenario

    Answered

    I have the following parameters: period = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]facility = ['f1', 'f2', 'f3', 'f4', 'f5'] I have declared a binary decision variable as follows: X_f = m.addVars(faci...

  • Chaolong Chen created a post,

    Converting equations into constraints

    Answered

    The model contains the following sets and variables: # setsu = ['u1', 'u2',...g = ['g1', 'g2',...i = ['i1', 'i2',...k = ['k1', 'k2',...l = ['l1', 'l2',...v = ['v1', 'v2',...# parametersR_k = {'k1':...