class

7.3-23

Functions for Classification

68packages depend

625.5Kdownloads / year

–test coverage

11/13checks pass

Overview

About

Maintained by Brian RipleyFirst published 2009-05-0824 releasesCRAN page ↗

Various functions for classification, including k-nearest neighbour, Learning Vector Quantization and Self-Organizing Maps.

Install

R (CRAN)Ubuntu (r2u)openSUSE (OBS)

install.packages("class", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-class

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-class

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

2NOTE11OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 1.1 min · r-release-windows-x86_64

Check history

NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation signals are not tracked yet for this package.

Downloads

625.5K

CRAN downloads in the past year

Rank #443 · ~1.7K/day · ~52.1K/mo

class Releases R versions

Daily download trend is not available in this view yet.

73.7K30 days

194.8K90 days

625.5K1 year

Compare downloads with other packages →

Also on36K r2u7.5K autocran484.2K conda_forge310 c2d4u

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Depends (3)

R >= 3.0.0statsutils

Imports (1)

MASS

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

68direct

1,979indirect

and 20 more packages.

Code & Tests

People & History

People (2)

Maintainer (1)

Brian Ripley

Author, Maintainer, Copyright holder · added in 7.3-6

Authors (1)

Brian Ripley

Author, Maintainer, Copyright holder · added in 7.3-6

Brian Ripley

Author, Maintainer, Copyright holder · added in 7.3-6

William Venables

Listed in earlier versions (2)

S original by Venables & Ripley. R port by Brian Ripley.

no longer listed · 7.3-0

Brian Ripley.

no longer listed · 7.3-1 to 7.3-3

Package Timeline

24 releases. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
7.3-23Latest
2025-01-01 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
7.3-22
2023-05-03 · diff ↗
R
R 4.3.0 released · 2023-04-21
7.3-21
2023-01-23 · diff ↗
R
R 4.2.0 released · 2022-04-22
7.3-20
2022-01-13 · diff ↗
R
R 4.1.0 released · 2021-05-18
7.3-19
2021-05-03 · diff ↗
7.3-18
2021-01-24 · diff ↗
7.3-17
2020-04-26 · diff ↗
R
R 4.0.0 released · 2020-04-24
7.3-16
2020-03-25 · diff ↗
R
R 3.6.0 released · 2019-04-26

Show 29 earlier events

7.3-15
2019-01-02 · diff ↗
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
7.3-14
2015-08-30 · diff ↗
7.3-13
2015-06-29 · diff ↗
R
R 3.2.0 released · 2015-04-16
7.3-12
2015-02-11 · diff ↗
7.3-11
2014-07-21 · diff ↗
R
R 3.1.0 released · 2014-04-10
7.3-10
2014-03-28 · diff ↗
7.3-9
2013-08-21 · diff ↗
7.3-8
2013-07-01 · diff ↗
7.3-7
2013-04-03 · diff ↗
R
R 3.0.0 released · 2013-04-03
7.3-6
2013-02-10 · diff ↗
7.3-5
2012-10-08 · diff ↗
7.3-4
2012-06-27 · diff ↗
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
R
R 2.13.0 released · 2011-04-13
7.3-3
2010-12-09 · diff ↗
R
R 2.12.0 released · 2010-10-15
R
R 2.11.0 released · 2010-04-22
7.3-2
2010-04-02 · diff ↗
7.3-1
2009-10-28 · diff ↗
R
R 2.10.0 released · 2009-10-26
7.3-0
2009-05-08
R
R 2.9.0 released · 2009-04-17

Package metadata

First published: 2009-05-08
Total releases: 24 / 17 yrs
License: GPL-2 | GPL-3 OSI
Download size: 22 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Report a problem with this page →