python (65.1k questions)

javascript (44.2k questions)

reactjs (22.7k questions)

java (20.8k questions)

c# (17.4k questions)

html (16.3k questions)

r (13.7k questions)

android (12.9k questions)

Questions - pyomo

DataPortal don't correctly read .dat file with few indexed parameters

I'm working with pyomo and need to read data previously wrote in a .dat file. I'm reading data with following code: data = DataPortal() data.load(filename = 'myfilename.dat') All data is correctly re...
test-img

Á. Garzón

python-3.x

linear-programming

pyomo

Votes: 0

Answers: 0

parameter estimation - parametric confidence intervals in DAE models

I am using pyomo for parameter estimation where the models are formed by DAEs. It works fine. Now, I want to construct confidence intervals for parameters, and check the parametric independence. One w...
test-img

BPMDuarte

pyomo

Votes: 0

Answers: 1

Latest Answer

In the meantime I made a few improvements. I read the documentation and parmest.Estimator.theta_est() allows computing the parametric covariance. However it requires pynumero. I got the error Cannot l...
test-img

BPMDuarte

Pyomo lower bounds of variables

Hi guys I have the following problem. I have two optimization problems and the output values of the first are the lower bounds in second's variables. I try to write it the following way : model_low=Co...
test-img

zbutsam

python

pyomo

lower-bound

Votes: 0

Answers: 1

Latest Answer

Your variables in the model appear to be indexed, so you have to provide some lower bound indexing tool that is indexed. You can pass a function (as show) that will do this, same as if you were using...
test-img

AirSquid

How to extract variables that equal a certain value in pyomo?

I am building a linear optimization model and trying to extract key information from my decision variable values. instance.x.display() displays the following sample x : Size=121, Index=x_index Key...
test-img

Berbatov

variables

pyomo

linear-optimization

Votes: 0

Answers: 1

Latest Answer

You can extract all values to a more user-friendly format by: x_dic = x.get_values() for i in x_dic.keys(): if r[i]==1: print(i) I am sure there is a nicer way but this should do the tric...
test-img

Aggotrom

Posts

Questions

Blogs

Jobs