metamer

0.3.1

Create Data with Identical Statistics

0packages depend

3.6Kdownloads / year

77.9%test coverage

11/13checks pass

Overview

About

Maintained by Elio CampitelliFirst published 2019-01-034 releasesCRAN page ↗GitHub ↗

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

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.

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).

Health

CRAN checks

2NOTE11OK

Failing flavors

NOTE r-devel-linux-x86_64-fedora-clang
NOTE r-devel-linux-x86_64-fedora-gcc

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

Code health

Yes

Tests · ratio 0.17

77.9%

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 · 367 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 55%
References docs: 17%

Downloads

3.6K

CRAN downloads in the past year

Rank #15,585 · ~10/day · ~298/mo

Releases R versions

Daily download trend is not available in this view yet.

25430 days

72490 days

3.6K1 year

Compare downloads with other packages →

Also on96 r2u31 autocran

Repository

GitHub ↗ eliocamp/metamer

25Stars

1Forks

2Open issues

0Open PRs

3Releases

94Commits

1Contributors

rr-packagerstats

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

Stars over time

2024-08-22 · 252026-07-07 · 25

Repository practices

Upstream repositoryBeta

5 development-tooling and community-health practices detected across 5 families in the upstream repository

Checks run against github.com/eliocamp/metamer on 2026-07-19.

Continuous integration (1)

GitHub Actions

CRAN release process (1)

cran-comments.md

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

Show all practices

Coverage (1)

Codecov

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

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

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.

Code & Tests

People & History

People (1)

Maintainer (1)

Elio Campitelli

Maintainer, Author

Authors (1)

Elio Campitelli

Maintainer, Author

Package Timeline

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

0.3.1Latest
2026-07-02 · current release · diff ↗
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
0.3.0
2022-06-23 · 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
0.2.0
2019-09-18 · diff ↗
R
R 3.6.0 released · 2019-04-26
0.1.0
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
Installed size: not tracked yet
With dependencies: not tracked yet

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