Shutian Li

Hi,  I have met a problem when I use Gurobi-Python  I wrote my model as a function such that:  def VRP1():  m.gp.Model() # add variables  x=(CUSTOMER,CUSTOMERS,VEHICLES) y=.....  # add constraints ...

I need to code something as follows(where x is the decision variable)  I write it as follows:(in python)  for ss in range(cardS): px[ss] = sum(ppp[a,i,ss]*x[a,i] for a in range(cardA) for i in ran...

I have two decision variables in my model, but I do not know how to return the value of these decision variables seperately.    import pandas as pd import gurobipy as gpy string = '/Users/user/Des...