python (12.9k questions)

javascript (9.2k questions)

reactjs (4.7k questions)

java (4.2k questions)

java (4.2k questions)

c# (3.5k questions)

c# (3.5k questions)

html (3.3k questions)

Questions - pyomo

PV Overproduction within a linear cost factor optimization

So I am currently trying to optimize the costs for energy in a household. The optimization is based on a cost factor function which I am trying to minimize. model = ConcreteModel() model.t = RangeSet(...
test-img

saschav

python

linear-programming

pyomo

Votes: 0

Answers: 2

Latest Answer

I think the easiest way to do this is to probably just penalize excess production to a greater extent than the maximally negative cost factor. Why can't you... excess_pentalty = max(-min(cost) + epsil...
test-img

AirSquid

Getting KeyError: 1822253855912 when using pyomo (any solver)

I am using Pyomo with Spyder IDE, and running a simple linear programming example and while I have installed pyomo, gurabi, CPLEX, GLPK and other solvers, no matter which one I use, I get an error sim...
test-img

Zmelgar K1R3D2

python

linear-programming

pyomo

Votes: 0

Answers: 1

Latest Answer

The problem is that you're not attaching any Var to the actual problem. You're defining all Var outside the model and you need to define them as part of your class model.x = pyo.Var(bounds=(0,10)) The...
test-img

pybegginer

Mixed Integer Linear Programming with pyomo or PuLP

I am new to optimization programming using python and I have a problem with defining a variable in both pyomo and PuLP for a MILP problem. I am using gene expression data and I am confused about how t...
test-img

sandaruwan Ratnayake

optimization

linear-programming

pyomo

pulp

mixed-integer-programming

Votes: 0

Answers: 1

Latest Answer

I'd pick pyomo. I think it is more expressive and easier to read/work with. You'll need to install a solver separately. If that is daunting, pulp comes with CBC built in. This should get you starte...
test-img

AirSquid

Why a NonNegativeIntegers variable gets a float value in Baron solver

I am using pyomo and Baron to solve a MINLP. I declared a NonNegativeIntegers variable but when Baron solves the problem, the variable is: 2e-06 !! How is it possible?!
test-img

Hami

solver

pyomo

nonlinear-optimization

mixed-integer-programming

Votes: 0

Answers: 1

Latest Answer

Because of tolerances any integer variable can be slightly non-integer. This is normal and also happens with linear solvers.
test-img

Erwin Kalvelagen

Posts

Questions

Blogs

Jobs