How to get constraints in matrix format from Gurobi/JuMP?

Question

I have built an LP model in JuMP/Julia using Gurobi solver. I wish to visualize the constraints for checking the overall correctness of my model. In python, we can define a function help to visualize the constraints. Please follow the link below for pythons solution. How to get access to constraint matrix and visualize it in JuMP?

Get constraints in matrix format from gurobipy

Best,

NG

Answer 1

There are several options to do that in Julia:

• using Plotly

  julia> using Plots
  julia> plotlyjs()
  julia> spy(A)
  

• just using Plots

  julia> using Plots
  julia> spy(A)