R Observatory: Metrics for metamer version 0.3.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

metamer

0.3.1Package record

Create Data with Identical Statistics

0packages depend

3.2Kdownloads / year

77.9%test coverage

11/13flavors OK

Overview

About

Maintained by Elio CampitelliCRAN page ↗GitHub ↗Website ↗Issues ↗

Creates data with identical statistics (metamers) using an iterative algorithm proposed by Matejka & Fitzmaurice (2017) DOI:10.1145/3025453.3025912.

Changes in 0.3.1

Updates maintainer email.

From NEWS.md in the release

Install

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

install.packages("metamer", 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("eliocamp/metamer")

Development version from eliocamp/metamer. 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-metamer

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-metamer

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-metamer

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

2NOTE11OK

Check messages

NOTEdependencies in R coder-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc

Namespace in Imports field not imported from:
  ‘progress’
All declared Imports should be used.

CRAN check page ↗

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

Status changes

NOTE11 OK, 2 NOTENow
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.3.1

READMEYes · 367 wordsVignettesNoNEWSYes · 100% structured · mentions 0.3.1Citation fileNoWebsiteYes · pkgdown

Help pages: 12 (1 internal)includes a package overview page
Examples that run: 100%4 run in a plain check
Exported functions with examples: 36%
Documented parameters: 100%
Return-value docs: 55%
Help pages citing references: 17%

How these are measured

Downloads

3.2K

CRAN downloads in the past year

Rank #10,029 · ~9/day · ~270/mo

Releases R versions

Daily download trend is not available in this view yet.

31330 days

1K90 days

3.2K1 year

Compare downloads with other packages →

Also on79 r2u3 autocran

How downloads are counted

Repository

eliocamp/metamer ↗Account: eliocamp

25Stars

1Forks

2Open issues

0Open PRs

3Releases

94Commits

1Commit identities

rr-packagerstats

License file reads as GPL-3.0 · 94 commits · Last activity 2026-07-02

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 0
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2024-08-22 · 252026-07-07 · 25

How these are measured

PracticesBeta

9 development-tooling and community-health practices detected across 6 families in the upstream repository

Checks run against github.com/eliocamp/metamer on 2026-10-22.

Continuous integration (1)

GitHub Actions

Governance and community (1)

The repository owner accepts GitHub Sponsors

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2022-06-23 · The repository has a site deploy workflow

pkgdown site last built 2022-06-23, before release 0.3.1 (2026-07-02)

Coverage (1)

Coverage reporting (Codecov)

Show all practicesHide 2 practices

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

RStudio project

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Installing metamer adds 12 packages (5 with compiled code, 2.9 MB of source tarballs). Heaviest: vctrs 1.0 MB, rlang 766 KB, cli 629 KB.

Depends (1)

R >= 2.10

Imports (3)

FNN progressmethods

LinkingTo (0)

none

Suggests (6)

shiny miniUI testthat data.table covr sf

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)

Elio Campitelli

Maintainer since 0.1.0 (2019), Author

Releases (4)

Pick two releases to compare their code metrics.

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
0.3.1Latest
record
2022-06-23 · current release · diff ↗
0.3.0
record
2022-06-23 · diff ↗ ·
removed 1 export
trim

added 17 exports
clear_minimise, clear_minimize, get_last_metamer, mean_dist_to_sf, metamerise, minimize_ratio, n_metamers, n_tries, new_metamer, round_to, set_K, set_annealing, set_change, set_minimise, set_perturbation, set_start_probability, truncate_to
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
0.2.0
record
2019-09-18 · diff ↗ ·
added 1 export
mean_self_proximity
R
R 3.6.0 released · 2019-04-26
0.1.0
record
2019-01-03
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2019-01-03
Total releases: 4 / 7 yrs
License: GPL-3 OSI
Minimum R: ≥ 2.10
Download size: 1.6 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("metamer")

Format

Campitelli, E. (2026). metamer: Create Data with Identical Statistics (Version 0.3.1) [Computer software]. https://doi.org/10.32614/CRAN.package.metamer

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

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 metamer version 0.3.1 [Data set]. HJJB, LLC. Data release v2026-10-24. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-24, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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