R Observatory: Metrics for fastcluster version 1.3.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

fastcluster

1.3.0Package record

Fast Hierarchical Clustering Routines for R and 'Python'

27packages dependsuggested by 8

288.6Kdownloads / year

92.6%test coverage

13/13flavors OK

Overview

About

Maintained by Daniel MüllnerCRAN page ↗Website ↗

This is a two-in-one package which provides interfaces to both R and 'Python'. It implements fast hierarchical, agglomerative clustering routines. Part of the functionality is designed as drop-in replacement for existing routines: linkage() in the 'SciPy' package 'scipy.cluster.hierarchy', hclust() in R's 'stats' package, and the 'flashClust' package. It provides the same functionality with the benefit of a much faster implementation. Moreover, there are memory-saving routines for clustering of vector data, which go beyond what the existing packages provide. For information on how to install the 'Python' files, see the file INSTALL in the source distribution. Based on the present package, Christoph Dalitz also wrote a pure 'C++' interface to 'fastcluster': https://lionel.kr.hs-niederrhein.de/~dalitz/data/hclust/.

Changes in 1.3.0

Support for NumPy 2.
Python interface: Updated definition of the Jaccard distance function, following a change in SciPy 1.15.0.

From NEWS.md in the release

Install

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

install.packages("fastcluster", 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-fastcluster

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-fastcluster

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# 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-fastcluster

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 2.7 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

Documentation signals are not tracked yet for this package.

WebsiteYes

Vignettes (1)

User's manual PDF

How these are measured

Downloads

288.6K

CRAN downloads in the past year

Rank #589 · ~791/day · ~24K/mo

fastcluster Releases R versions

Daily download trend is not available in this view yet.

22.5K30 days

105.8K90 days

288.6K1 year

Compare downloads with other packages →

Also on6.6K r2u5 autocran40.6K conda_forge742 bioconda419 c2d4u

How downloads are counted

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

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

Depends (1)

R >= 3.0.0

Imports (0)

none

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

27direct

36indirect

Depends 4 · Imports 23

Suggested by 8

Show all 35 packagesHide all 35 packages

Depends, Imports or LinkingTo, most downloaded first

Suggests, most downloaded first

hyperSpec FCPS IncDTW familiar MapperAlgo TRexSelector MSCA SampleCore

How these are counted

Code & Tests

People & History

People (2)

Daniel Müllner

Google Inc.

Copyright holder · added in 1.1.25

Listed in earlier versions (1)

http://math.stanford.edu/~muellner

no longer listed · 1.0.2 to 1.0.4

Releases (30)

R
R 4.6.0 released · 2026-04-24
1.3.0Latest
record
2025-05-07 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
1.2.6
record
2024-01-12 · diff ↗
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
1.2.3
record
2021-05-25 · diff ↗
1.2.2
record
2021-05-24 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
1.1.25
record
2018-06-07 · diff ↗
R
R 3.5.0 released · 2018-04-23
1.1.24
record
2017-08-21 · diff ↗
1.1.23
record
2017-08-21 · diff ↗

Show 32 earlier eventsHide 32 earlier events

R
R 3.4.0 released · 2017-04-21
1.1.22
record
2016-12-09 · diff ↗
1.1.21
record
2016-09-19 · diff ↗
R
R 3.3.0 released · 2016-05-03
1.1.20
record
2016-03-31 · diff ↗
R
R 3.2.0 released · 2015-04-16
1.1.16
record
2015-02-17 · diff ↗
1.1.15
record
2015-01-05 · diff ↗
1.1.14
record
2015-01-04 · diff ↗
R
R 3.1.0 released · 2014-04-10
1.1.13
record
2013-12-17 · diff ↗
1.1.11
record
2013-05-24 · diff ↗
1.1.10
record
2013-05-23 · diff ↗
R
R 3.0.0 released · 2013-04-03
1.1.9
record
2013-03-17 · diff ↗
1.1.8
record
2013-01-19 · diff ↗
1.1.7
record
2012-09-21 · diff ↗
R
R 2.15.0 released · 2012-03-30
1.1.6
record
2012-03-13 · diff ↗
1.1.5
record
2012-02-15 · diff ↗
1.1.4
record
2012-02-13 · diff ↗
1.1.3
record
2011-12-11 · diff ↗
R
R 2.14.0 released · 2011-10-31
1.1.2
record
2011-10-11 · diff ↗
1.1.1
record
2011-10-09 · diff ↗
1.1.0
record
2011-10-01 · diff ↗ ·
added 1 export
hclust.vector
R
R 2.13.0 released · 2011-04-13
1.0.4
record
2011-03-23 · diff ↗
1.0.3
record
2011-03-21 · diff ↗
1.0.2
record
2011-03-17 · diff ↗
1.0.1
record
2011-03-16
R
R 2.12.0 released · 2010-10-15

Package metadata

First published: 2011-03-16
Total releases: 30 / 15 yrs
License: FreeBSD | GPL-2 | file LICENSE OSI · relicensed from FreeBSD | file LICENSE in 1.1.10
Download size: 199 KB

Appears in task views

Cluster Analysis & Finite Mixture Models

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("fastcluster")

Format

Müllner, D., & Google Inc. (2025). fastcluster: Fast Hierarchical Clustering Routines for R and 'Python' (Version 1.3.0) [Computer software]. https://doi.org/10.32614/CRAN.package.fastcluster

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

Cite the R Observatory

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

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for fastcluster version 1.3.0 [Data set]. HJJB, LLC. Data release v2026-10-19. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-19, which the citation names so these numbers can be found later. More on citing and the projects behind them.

Report a problem with this page →