Xinshuo Yang

Curious
First Comment
  • Total activity 12
  • Last activity
  • Member since
  • Following 0 users
  • Followed by 0 users
  • Votes 0
  • Subscriptions 5

Activity overview

Latest activity by Xinshuo Yang
  • Xinshuo Yang created a post,

    How to make a deep copy of a linear expression using gurobipy

    Answered

    I need to make changes to my objective function, solve the model and reset the objective function to be the original one. Since my objective function is a LinExp, I was wondering how to make a deep...

  • Xinshuo Yang commented,

    What also confused is that solving the base model (use the MIPstarts but not make it a multiple-scenario model) took about 0.2 seconds while in the multiple-scenario model solving one scenario coul...

  • Xinshuo Yang created a post,

    multiple scenario model running time

    Answered

    I am using GUROBI multiple-scenario model to solve a MIP with small perturbations from a base model. I know the solution to the base model. So I use var.VarHintVal or var.Start (not both) to guide ...

  • Xinshuo Yang created a post,

    MIP with infinite number of feasible solutions

    Answered

    I have a MIP where two continuous variables x and y are equivalent. So in the solution the sum (denoted by s) of x and y is determined/fixed, but there are infinite many choices of feasible solutio...

  • Xinshuo Yang commented,

    That makes sense. Thank you.

  • Xinshuo Yang created a post,

    Checking new RHS in multiple Scenarios

    Answered

    I am using the multiple scenario Gurobi model in Python where in one of the scenarios I changed the RHS by: constr.ScenNRHS = new_RHS   Now I would like to see whether this change has been success...

  • Xinshuo Yang created a post,

    Sensitivity analysis for input parameter in LP

    Answered

    Does GUROBI support sensitivity analysis for input parameters in LP model?