CRAN requires the check problems on this package to be fixed before 2026-08-21 or it will be archived.

fpc

2.2-14

Flexible Procedures for Clustering

45packages depend

257.2Kdownloads / year

38.2%test coverage

4/13checks pass

Overview

About

Maintained by Christian HennigFirst published 2003-06-2839 releasesCRAN page ↗

Various methods for clustering and cluster validation. Fixed point clustering. Linear regression clustering. Clustering by merging Gaussian mixture components. Symmetric and asymmetric discriminant projections for visualisation of the separation of groupings. Cluster validation statistics for distance based clustering including corrected Rand index. Standardisation of cluster validation statistics by random clusterings and comparison between many clustering methods and numbers of clusters based on this. Cluster-wise cluster stability assessment. Methods for estimation of the number of clusters: Calinski-Harabasz, Tibshirani and Walther's prediction strength, Fang and Wang's bootstrap stability. Gaussian/multinomial mixture fitting for mixed continuous/categorical variables. Variable-wise statistics for cluster interpretation. DBSCAN clustering. Interface functions for many clustering methods implemented in R, including estimating the number of clusters with kmeans, pam and clara. Modality diagnosis for Gaussian mixtures. For an overview see package?fpc.

Install

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

install.packages("fpc", 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-fpc

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-fpc

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

Health

CRAN checks

9NOTE4OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc
NOTE r-devel-linux-x86_64-fedora-clang
NOTE r-devel-linux-x86_64-fedora-gcc
NOTE r-devel-windows-x86_64
NOTE r-oldrel-windows-x86_64
NOTE r-patched-linux-x86_64
NOTE r-release-linux-x86_64
NOTE r-release-windows-x86_64

Slowest check: 4.1 min · r-devel-linux-x86_64-fedora-clang

Check history

NOTE2026-07-06
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-06-08
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation signals are not tracked yet for this package.

Downloads

257.2K

CRAN downloads in the past year

Rank #902 · ~705/day · ~21.4K/mo

fpc Releases R versions

Daily download trend is not available in this view yet.

13.8K30 days

53.6K90 days

257.2K1 year

Compare downloads with other packages →

Also on6.4K r2u202 autocran7.7K conda_forge492 bioconda86 c2d4u

Dependencies

Declared dependencies

9 external dependencies (excludes base and recommended)

Depends (1)

R >= 2.0

Imports (15)

MASSclustermclust flexmix prabclusclassdiptest robustbase kernlabgrDevicesgraphicsmethodsstatsutilsparallel

LinkingTo (0)

none

Suggests (3)

tclust pdfCluster mvtnorm

Enhances (0)

none

Dependency license breakdown →

Code & Tests

Datasets

People & History

People (1)

Maintainer (1)

Christian Hennig

Author, Maintainer

Authors (1)

Christian Hennig

Author, Maintainer

Package Timeline

39 releases. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
2.2-14Latest
2026-01-14 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
2.2-13
2024-09-24 · diff ↗
2.2-12
2024-04-30 · diff ↗
R
R 4.4.0 released · 2024-04-24
2.2-11
2023-12-15 · diff ↗
R
R 4.3.0 released · 2023-04-21
2.2-10
2023-01-07 · diff ↗
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
2.2-9
2020-12-06 · diff ↗
2.2-8
2020-09-19 · diff ↗
2.2-7
2020-06-26 · diff ↗
2.2-6
2020-06-24 · diff ↗
R
R 4.0.0 released · 2020-04-24

Show 58 earlier events

2.2-5
2020-02-04 · diff ↗
2.2-4
2020-01-17 · diff ↗
2.2-3
2019-06-28 · diff ↗
2.2-2
2019-06-07 · diff ↗
2.2-1
2019-05-21 · diff ↗
unarchivedReturned to CRAN
2019-05-21
2.1-11.2
2019-04-26 · diff ↗
R
R 3.6.0 released · 2019-04-26
2.1-11.1
2018-07-20 · diff ↗
orphanedOrphaned by its maintainer
2018-07-20
check problems were not corrected despite reminders
R
R 3.5.0 released · 2018-04-23
2.1-11
2018-01-13 · diff ↗
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
2.1-10
2015-08-14 · diff ↗
R
R 3.2.0 released · 2015-04-16
2.1-9
2014-10-02 · diff ↗
2.1-8
2014-09-09 · diff ↗
R
R 3.1.0 released · 2014-04-10
2.1-7
2014-01-29 · diff ↗
2.1-6
2013-10-30 · diff ↗
R
R 3.0.0 released · 2013-04-03
2.1-5
2013-01-21 · diff ↗
2.1-4
2012-08-30 · 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
2.0-3
2010-11-19 · diff ↗
R
R 2.12.0 released · 2010-10-15
2.0-2
2010-08-18 · diff ↗
2.0-1
2010-08-10 · diff ↗
R
R 2.11.0 released · 2010-04-22
1.2-7
2009-11-16 · diff ↗
R
R 2.10.0 released · 2009-10-26
1.2-6
2009-08-26 · diff ↗
1.2-4
2009-05-06 · diff ↗
R
R 2.9.0 released · 2009-04-17
R
R 2.8.0 released · 2008-10-20
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R 2.7.0 released · 2008-04-22
R
R 2.6.0 released · 2007-10-03
1.2-3
2007-06-14 · diff ↗
R
R 2.5.0 released · 2007-04-24
1.2-2
2006-10-09 · diff ↗
R
R 2.4.0 released · 2006-10-03
1.2-1
2006-09-06 · diff ↗
R
R 2.3.0 released · 2006-04-24
R
R 2.2.0 released · 2005-10-06
1.1-3
2005-09-24 · diff ↗
R
R 2.1.0 released · 2005-04-18
R
R 2.0.0 released · 2004-10-04
1.1-2
2004-04-23 · diff ↗
1.1-1
2004-04-23 · diff ↗
R
R 1.9.0 released · 2004-04-12
R
R 1.8.0 released · 2003-10-08
1.0-2
2003-07-04 · diff ↗
1.0-1
2003-07-01 · diff ↗
1.0
2003-06-28
R
R 1.7.0 released · 2003-04-16

Package metadata

First published: 2003-06-28
Total releases: 39 / 23 yrs
License: GPL
Download size: 200 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Cluster Analysis & Finite Mixture Models

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