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Numpy 2.0.0 breaks pymoo 0.6.1.1

1

Installing pymoo from PyPI, i.e. 0.6.1.1, results in an AttributeError when importing ElementwiseProblem. The problem seems to be numpy version 2.0.0. Downgrading numpy to 1.26.4 resolves the issue. ### MWE...

jbuerman

Error with get_cmap using Scatter visualization function

2

Hi, I was trying to plot some results with the Scatter visualization function, but I got the following error: I found this "issue" Re-add matplotlib.cm.get_cmap from matplotlib: https://github.com/matplotlib/matplotlib/pull/28355 Replacing self.cmap...

lisasoubirou

Bug: Random seed incorrectly set for CMAES optimizer

1

If the following is called, the seed is ignored. ``` algorithm = CMAES(popsize, ...) algorithm.setup(problem, seed, termination) ``` The above setup method is located in base class Algorithm, which calls...

CodingTragic

Riesz s-Energy returns different outputs for same random seed

3

If you start two different Python processes and run: `get_reference_directions("energy", 4, 32, seed=42)` I get different outputs each time. I believe there is something wrong with how the random seed...

LucasAlegre

Reproducible:   Suggestion: - Try to fix it by adding an exception in https://github.com/anyoptimization/pymoo/blob/9d851f46ea98a209f11044b6bafab2dec17ab53b/pymoo/util/normalization.py#L57-L69 - Try to fix it using epsilon, i.e. `norm[norm==0] = np.finfo(norm.dtype).eps`

muazhari

AGEMOEA2 has too many error when benchmarked by test problems.

2

```python from pymoo.termination import get_termination from pymoo.algorithms.moo.age import AGEMOEA from pymoo.algorithms.moo.sms import SMSEMOA from pymoo.util.ref_dirs import get_reference_directions, LayerwiseRieszEnergyReferenceDirectionFactory from pymoo.algorithms.moo.ctaea import CTAEA from pymoo.algorithms.moo.age2 import AGEMOEA2 from pymoo.core.variable import Binary,...

muazhari

Termination Criteria page: https://pymoo.org/interface/termination.html?highlight=ftol A few confusions: 1. Typo: "Commonly used are the movement in the design space f_tol..." => should be x_tol or xtol because f is for objectives....

dinohsu1019

Hello, Firstly, a big thanks for this library! It is very useful. When I run the example of CMA-ES (https://pymoo.org/algorithms/soo/cmaes.html) : ``` import numpy as np from pymoo.algorithms.soo.nonconvex.cmaes import CMAES...

jchahal-wiio

I want to run the optimization of a list of integers. I have been able to run the equivalent code with the NSGA II, but, when using R-NSGA II, I...

Frederic-Le-Pivert

Import Error with pymoo Factory Functions

2

I'm new to Pymoo and currently working with a code I found on GitHub. However, I'm encountering an error when trying to import the following packages: `from pymoo.factory import get_sampling,...

Paeyus