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Fuzzy Rule-Based Systems for Classification and Regression Tasks

0packages dependsuggested by 1
40.8Kdownloads / year
–test coverage
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Overview

About

An implementation of various learning algorithms based on fuzzy rule-based systems (FRBSs) for dealing with classification and regression tasks. Moreover, it allows to construct an FRBS model defined by human experts. FRBSs are based on the concept of fuzzy sets, proposed by Zadeh in 1965, which aims at representing the reasoning of human experts in a set of IF-THEN rules, to handle real-life problems in, e.g., control, prediction and inference, data mining, bioinformatics data processing, and robotics. FRBSs are also known as fuzzy inference systems and fuzzy models. During the modeling of an FRBS, there are two important steps that need to be conducted: structure identification and parameter estimation. Nowadays, there exists a wide variety of algorithms to generate fuzzy IF-THEN rules automatically from numerical data, covering both steps. Approaches that have been used in the past are, e.g., heuristic procedures, neuro-fuzzy techniques, clustering methods, genetic algorithms, squares methods, etc. Furthermore, in this version we provide a universal framework named 'frbsPMML', which is adopted from the Predictive Model Markup Language (PMML), for representing FRBS models. PMML is an XML-based language to provide a standard for describing models produced by data mining and machine learning algorithms. Therefore, we are allowed to export and import an FRBS model to/from 'frbsPMML'. Finally, this package aims to implement the most widely used standard procedures, thus offering a standard package for FRBS modeling to the R community.

Changes in 3.3-0

CRAN compliance fixes

  • DESCRIPTION: Replaced deprecated Author/Maintainer fields with the modern Authors@R field using person() objects.
  • inst/CITATION: Replaced deprecated citEntry() with bibentry(), and replaced personList(as.person(...)) with c(person(...)).
  • man/summary.frbs.Rd: Fixed two "lost braces" warnings reported by checkRd: added missing \ before code{"TRIANGLE"}, and escaped bare curly braces around the example parameter vector.
  • vignettes/lala2015frbs.bib: Added missing bibliography entries randomforest2 (Breiman 2001, *Machine Learning*) and nnet2 (Venables & Ripley 2002, *Modern Applied Statistics with S*) referenced in the vignette.
Show all changes in 3.3-0Hide the rest of the changes in 3.3-0
  • DESCRIPTION, man/frbs-package.Rd, inst/CITATION: Updated all http:// URLs to https://. Replaced broken sci2s.ugr.es/dicits/software/FRBS URL (returning HTTP 500) with the canonical CRAN package page https://cran.r-project.org/package=frbs.
  • inst/doc/*.pdf: Compacted vignette PDFs with tools::compactPDF(gs_quality = "ebook") to remove the R CMD check --as-cran PDF size WARNING.

Win-builder fixes

From NEWS.md in the release

Install

Health

CRAN checks
13OK
Slowest check: 8.3 min · r-release-macos-x86_64
Status changes
  • OK13 OK2026-08-05
  • NOTE12 OK, 1 NOTE2026-08-01
  • OK13 OK2026-07-30
  • NOTE14 NOTE2026-03-10
Advisories

none known

Documentation

In release 3.3-0
READMENoVignettesYes · 1NEWSYes · 67% structured · mentions 3.3-0Citation fileYes · cites a publicationWebsitenot declared in DESCRIPTION
Help pages
47includes a package overview page
Examples that run
89%8 run in a plain check · 1 never run
Exported functions with examples
50%
Documented parameters
100%
Return-value docs
93%
Help pages citing references
40%

Also includes 34 demo scripts (run with demo())

Downloads

40.8K
CRAN downloads in the past year
Rank #2,391 · ~112/day · ~3.4K/mo
Daily download trend is not available in this view yet.
2.2K30 days
6.8K90 days
40.8K1 year
Compare downloads with other packages →
Also on170 r2u3 autocran142 c2d4u

Dependencies

Declared dependencies
3 external dependencies (excludes base and recommended)

Installing frbs adds no packages beyond those that come with R.

Depends (0)
none
Imports (0)
none
LinkingTo (0)
none
Suggests (4)
Enhances (0)
none
Reverse dependencies
0direct
0indirect
Suggested by 1
Suggests, most downloaded first

Datasets

People & History

People (4)
Author, Maintainer since 1.0-0 (2012)
Author · added in 3.0-0
Listed in earlier versions (3)
Show 3 peopleHide 3 people
Francisco Herrera Triguero
no longer listed · 1.0-0
Benitez
no longer listed · 3.3-0
Riza
no longer listed · 3.3-0
Releases (8)

Pick two releases to compare their code metrics.

  • 3.3-0Latest
    record
    2026-07-22 · current release · diff ↗
  • R
    R 4.6.0 released · 2026-04-24
  • R
    R 4.5.0 released · 2025-04-11
  • R
    R 4.4.0 released · 2024-04-24
  • R
    R 4.3.0 released · 2023-04-21
  • R
    R 4.2.0 released · 2022-04-22
  • R
    R 4.1.0 released · 2021-05-18
  • R
    R 4.0.0 released · 2020-04-24
  • 3.2-0
    record
    2019-12-15 · diff ↗ ·
    added 3 exports
    frbsPMML, read.frbsPMML, write.frbsPMML
  • R
    R 3.6.0 released · 2019-04-26
  • R
    R 3.5.0 released · 2018-04-23
  • R
    R 3.4.0 released · 2017-04-21
  • R
    R 3.3.0 released · 2016-05-03
  • 3.1-0
    record
    2015-05-22 · diff ↗
  • R
    R 3.2.0 released · 2015-04-16
  • 3.0-0
    record
    2015-01-16 · diff ↗ ·
    added 7 exports
    defuzzifier, denorm.data, frbsPMML, inference, norm.data, read.frbsPMML, write.frbsPMML
Show 7 earlier eventsHide 7 earlier events
  • R
    R 3.1.0 released · 2014-04-10
  • 2.2-0
    record
    2014-02-03 · diff ↗
  • R
    R 3.0.0 released · 2013-04-03
  • 2.1-0
    record
    2013-03-21 · diff ↗
  • 2.0-0
    record
    2013-02-27 · diff ↗ ·
    removed 3 exports
    frbsPMML, read.frbsPMML, write.frbsPMML
  • 1.0-0
    record
    2012-10-29
  • R
    R 2.15.0 released · 2012-03-30

Package metadata

First published
2012-10-29
Total releases
8 / 14 yrs
License
GPL (>= 2) | file LICENSE OSI
Bundled data
8.0 KB / 1 file
Download size
1.0 MB

Cite

Cite this package

Run in R for the authors' entry:

citation("frbs")

The package provides a citation file, so citation() returns the authors' own entry.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for frbs version 3.3-0 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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