fuzzylab

Python Fuzzy Logic library based on Octave Fuzzy Logic Toolkit 0.4.6, considered as a mostly MATLAB-compatible fuzzy logic toolkit for Octave.

The way to use the fuzzylab functions is based on Matlab R2022a Fuzzy Logic Toolbox functions.

This library is more mature compared to the first version and will receive periodic updates.

Research work

Fuzzy Logic Controller with Fuzzylab Python Library and the Robot Operating System for Autonomous Robot Navigation: A Practical Approach

Installation

pip install fuzzylab

Usage

In the folder examples there are some code snippets and the equivalent matlab code for a starting point using the library.

We use fl as the alias for fuzzylab.

import fuzzylab as fl

Example

import fuzzylab as fl
import matplotlib.pyplot as plt

x = fl.arange(0, 0.1, 10)
y = fl.trimf(x, [3, 6, 8])

plt.plot(x,y)
plt.title('trimf, P = [3, 6, 8]')
plt.xlabel('x')
plt.ylabel('Degree of Membership')
plt.ylim([-0.05, 1.05])
plt.show()

Also we can use a more matlab code style

from fuzzylab import arange, trimf
from matplotlib.pyplot import plot, title, xlabel, ylabel, ylim, show

x = arange(0, 0.1, 10)
y = trimf(x, [3, 6, 8])

plot(x,y)
title('trimf, P = [3, 6, 8]')
xlabel('x')
ylabel('Degree of Membership')
ylim([-0.05, 1.05])
show()

Citing fuzzylab

@Inbook{Avelar2020,
  author="Avelar, Eduardo
  and Castillo, Oscar
  and Soria, Jos{\'e}",
  editor="Castillo, Oscar
  and Melin, Patricia
  and Kacprzyk, Janusz",
  title="Fuzzy Logic Controller with Fuzzylab Python Library and the Robot Operating System for Autonomous Robot Navigation: A Practical Approach",
  bookTitle="Intuitionistic and Type-2 Fuzzy Logic Enhancements in Neural and Optimization Algorithms: Theory and Applications",
  year="2020",
  publisher="Springer International Publishing",
  address="Cham",
  pages="355--369",
  isbn="978-3-030-35445-9",
  doi="10.1007/978-3-030-35445-9_27",
  url="https://doi.org/10.1007/978-3-030-35445-9_27"
}