soma

1.2.0

General-Purpose Optimisation with the Self-Organising Migrating Algorithm

2packages depend

3.9Kdownloads / year

74.4%test coverage

11/13checks pass

Overview

About

Maintained by Jon ClaydenFirst published 2010-12-134 releasesCRAN page ↗GitHub ↗

An R implementation of the Self-Organising Migrating Algorithm, a general-purpose, stochastic optimisation algorithm. The approach is similar to that of genetic algorithms, although it is based on the idea of a series of ``migrations'' by a fixed set of individuals, rather than the development of successive generations. It can be applied to any cost-minimisation problem with a bounded parameter space, and is robust to local minima.

Install

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

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

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

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("jonclayden/soma")

Development version from jonclayden/soma. Installs pak first if it is not already available.

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-soma

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

# 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-soma

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-soma

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: 47 s · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.01

74.4%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

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

Documentation

READMEYes · 585 wordsVignettesNopkgdown siteNoNEWSYes · 33% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 68%
Return-value docs: 100%
References docs: 100%

Downloads

3.9K

CRAN downloads in the past year

Rank #10,545 · ~11/day · ~321/mo

Releases R versions

Daily download trend is not available in this view yet.

25930 days

97190 days

3.9K1 year

Compare downloads with other packages →

Also on131 r2u4 autocran84 c2d4u

Repository

GitHub ↗ jonclayden/soma

8Stars

2Forks

0Open issues

0Open PRs

0Releases

49Commits

1Contributors

49 commits · Last activity 2022-05-02 · 0% stars, 30d

Stars over time

2023-03-09 · 82026-07-07 · 8

Repository practices

Upstream repositoryBeta

3 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/jonclayden/soma on 2026-08-02.

Continuous integration (1)

Travis CI

Docs source (1)

README.Rmd

Coverage (1)

Codecov

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

4 external dependencies (excludes base and recommended)

Depends (1)

R >= 2.5.0

Imports (1)

reportr

LinkingTo (0)

none

Suggests (3)

tinytest covr shades

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

0indirect

calibrar MSCMT

Code & Tests

People & History

People (0)

Author records are not tracked yet for this package.

Listed in earlier versions (2)

Jon Clayden; based on the work of Ivan Zelinka

no longer listed · 1.0.0 to 1.1.1

Jon Clayden

no longer listed · 1.2.0

Package Timeline

4 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
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
1.2.0Latest
2022-05-02 · current release · diff ↗
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
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
R
R 3.2.0 released · 2015-04-16
1.1.1
2014-11-25 · diff ↗
R
R 3.1.0 released · 2014-04-10
R
R 3.0.0 released · 2013-04-03

Show 6 earlier events

R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
1.1.0
2011-07-28 · diff ↗
R
R 2.13.0 released · 2011-04-13
1.0.0
2010-12-13
R
R 2.12.0 released · 2010-10-15

Package metadata

First published: 2010-12-13
Total releases: 4 / 16 yrs
License: GPL-2 OSI
Minimum R: ≥ 2.5.0
Download size: 698 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Optimization and Mathematical Programming

Report a problem with this page →