Roger Creus

  • Gurobi-versary
  • First Question
  • First Comment
  • Total activity 13
  • Last activity
  • Member since
  • Following 0 users
  • Followed by 0 users
  • Votes 3
  • Subscriptions 4

Activity overview

Latest activity by Roger Creus
  • Roger Creus created a post,

    Sum of all PWL in objective function (Python gurobi)

    Answered

    Hello everybody,   So I am solving a LP problem which objective function consists of only PWL functions ( added with model.setPWLObj() ). Now I would like to add a constraint such that the sum of a...

  • Roger Creus created a post,

    Piece-wise Linear multi objective (Python-gurobi)

    Answered

    Hello everybody,  So I am solving a LP model where I use the model.setPWLObj() function to maximize the sum of all the pwl approximations of my variables. (Actually, there is no variable that does ...

  • Roger Creus created a post,

    Constraint: Sum of all variables to be equal to a given value

    Answered

    Hello everybody,  I wonder if someone can give me an intuiton on how to define in R the constraint that sets: sum(all variables x_i) = B Where B is a know numeric value and the model's only variabl...

  • Roger Creus commented,

    Alright! All these resources were very helpful, thank you! One last question: For the piecewise function, the set of points can always be between 0-1 (i.e. u = linspace(0.0, 1.0, 101))?. Is this al...

  • Roger Creus commented,

    Thank you very much for answering! When I try EXP = 0,1,2 there is no problem at all. The thing is that I am interested in EXP = 0.2 actually. So if the solution in this case is creating piecewise ...

  • Roger Creus created a post,

    Signomial terms in objective function

    Answered

    Hello everybody, I am using gurobi in the YALMIP optimization framework in Matlab.  I have an optimization problem of 28 variables (x is a vector of length 28) that looks like this:   curve = (x ./...