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parallelpam

1.4.3

Parallel Partitioning-Around-Medoids (PAM) for Big Sets of Data

0packages depend
2.6Kdownloads / year
test coverage
13/13checks pass

Overview

About
Maintained by Juan DomingoFirst published 2022-11-246 releasesCRAN page ↗

Application of the Partitioning-Around-Medoids (PAM) clustering algorithm described in Schubert, E. and Rousseeuw, P.J.: "Fast and eager k-medoids clustering: O(k) runtime improvement of the PAM, CLARA, and CLARANS algorithms." Information Systems, vol. 101, p. 101804, (2021). doi:10.1016/j.is.2021.101804. It uses a binary format for storing and retrieval of matrices developed for the 'jmatrix' package but the functionality of 'jmatrix' is included here, so you do not need to install it. Also, it is used by package 'scellpam', so if you have installed it, you do not need to install this package. PAM can be applied to sets of data whose dissimilarity matrix can be very big. It has been tested with up to 100.000 points. It does this with the help of the code developed for other package, 'jmatrix', which allows the matrix not to be loaded in 'R' memory (which would force it to be of double type) but it gets from disk, which allows using float (or even smaller data types). Moreover, the dissimilarity matrix is calculated in parallel if the computer has several cores so it can open many threads. The initial part of the PAM algorithm can be done with the BUILD or LAB algorithms; the BUILD algorithm has been implemented in parallel. The optimization phase implements the FastPAM1 algorithm, also in parallel. Finally, calculation of silhouette is available and also implemented in parallel.

Install

Health

CRAN checks
13OK
Slowest check: 5.8 min · r-devel-windows-x86_64
Code health
None
Tests · ratio 0.00
not tracked
Coverage
100%
Documentation · exports
2
Dependencies · direct
Check history
  • OK2026-08-05
    13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • NOTE2026-08-01
    12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • OK2026-06-09
    13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • WARNING2026-06-08
    12 OK · 0 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE
  • ERROR2026-06-07
    12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
Show 4 earlier snapshots
  • OK2026-05-02
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  • NOTE2026-04-22
    12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
  • ERROR2026-04-18
    11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
  • NOTE2026-03-10
    12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation
READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo
Examples that run
100%
Documented parameters
100%
Return-value docs
100%
References docs
0%

Downloads

2.6K
CRAN downloads in the past year
Rank #17,188 · ~7/day · ~216/mo
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12930 days
62590 days
2.6K1 year
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Dependencies

Declared dependencies
4 external dependencies (excludes base and recommended)
Depends (0)
none
Imports (2)
LinkingTo (1)
Suggests (2)
knitrcluster
Enhances (0)
none
Reverse dependencies
0direct
0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (3)
Maintainer (1)
Author, Maintainer
Authors (1)
Author, Maintainer
Contributors (1)
Contributor
Funders (1)
Package Timeline

6 releases. Pick two to compare their code metrics. R releases are shown for context.

  • R
    R 4.6.0 released · 2026-04-24
  • R
    R 4.5.0 released · 2025-04-11
  • 1.4.3Latest
    2024-07-15 · current release · diff ↗
  • 1.4.2
    2024-07-01 · diff ↗
  • R
    R 4.4.0 released · 2024-04-24
  • 1.4
    2023-10-09 · diff ↗
  • 1.3
    2023-06-23 · diff ↗
  • R
    R 4.3.0 released · 2023-04-21
  • 1.0.1
    2023-01-08 · diff ↗
  • 1.0
    2022-11-24
  • R
    R 4.2.0 released · 2022-04-22

Package metadata

First published
2022-11-24
Total releases
6 / 4 yrs
License
GPL (>= 2) OSI
Download size
155 KB
Installed size
not tracked yet
With dependencies
not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("parallelpam")
Domingo, J., Spanish Ministry of Science and Innovation, MCIN/AEI <doi:10.13039/501100011033>, & Ayala, G. (2024). parallelpam: Parallel Partitioning-Around-Medoids (PAM) for Big Sets of Data (Version 1.4.3) [Computer software]. https://doi.org/10.32614/CRAN.package.parallelpam

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.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for parallelpam version 1.4.3 [Data set]. HJJB, LLC. Data release v2026-08-16. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-16, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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