Pyomo Forum

Thank you On Tuesday, July 5, 2022 at 5:39:04 PM UTC-4 DLWoodruff wrote: IF statements cannot be

Hello, Hopefully you can help me here. Basically I have a variable that its bounds can vary depending

Hi, I had been working on my linear programming model and got an error which says "monomial term

You could use Pyomo GDP (https://pyomo.readthedocs.io/en/latest/modeling_extensions/gdp/modeling.html

We wrote a blog article about setting a Python modelling environment. The article describes each step

Hello, I would be interrested to see some Pyomo demo running on Binder. I know pyomo rather well.

I believe, that the problem is caused by BARON license, which is not sufficient for my problem. If

How did you install Pyomo? On Windows, if you used pip to install it into the system python, then the

Can you provide your model so that we can reproduce the error? Without that, there isn't much we

I'm developing an optimization algorithm to minimize a cost function. Since I want to apply this

This error is basically saying you need to use one of the persistent solver interfaces (

There are no specific features in Pyomo for indicators of equality; however if you use google, you

Hi, I am using the pyomo for my thesis project and working on MILP model. I have an objective

Álvaro, You just need to install all the packages you need beyond Python (eg, pyomo, Gurobi, etc.)

I am trying to use pyomo for a single objective nonlinear optimization problem using the ipopt solver

In these slides you can also find an implementation of Benders decomposition applied to the fixed-

Hi, I come up with the same error while accessing dual values. Have you found a solution yet?

I have tried pickle, but it throws an error: cannot pickle local object 'Model.<local>.fb

That's cool you can do that in Pyomo. In JuMP I had to hack to define my objective as the

You have mainly Python troubles: your indentation is incorrect on lines 17 and 22. Also, you probably

I have a bilinear problem, with constraints in this form: x * y <= 2. I use an iterative framework

I want to model a scenario that contains an objective and multiple constraints using the Concrete

Hi, I am trying to implement an objective function in Pyomo which is an integral of a linear function

I wished to subclass the Block object from Pyomo. This doesn't work and this error message

Hi Michael, I wondered if you had any more thoughts about a callback approach/function that I could

Would there be anymore info I could provide to help get to the bottom of this error? Thanks, Andy On

Hello Daniel, Thank you for your timely response and I apologize for my late reply! Indeed, the

Hi Shanshan, MindtPy provides you the mip_solver_mipgap configuration to set mipgap for MIP solvers.

Hi Mourad, Sorry for the late reply. In MindtPy, mip_solver_args={'timelimit': 3600} or

I've been running an iterative optimization problem using pyomo, and was pointed to using their