R Observatory: Metrics for dichromat version 2.0-1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

dichromat

2.0-1Package record

Color Schemes for Dichromats

3packages dependsuggested by 7

325.1Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Achim ZeileisCRAN page ↗Codeberg ↗Website ↗Issues ↗

Collapse red-green or green-blue distinctions to simulate the effects of different types of color-blindness based on the work of Françoise Viénot and co-authors, especially doi:10.1038/376127a0 and doi:10.1364/josaa.14.002647. More recent functions for simulating color vision deficiency are provided in the 'colorspace' package.

Changes in 2.0-1

Added pointers to the colorspace package and base R in a new startup message. The colorspace package provides better functions for simulating color vision deficiency: simulate_cvd(), deutan(), protan(), tritan(). More modern robust color palettes are available in hcl.colors() and palette.colors() in base R as well as further tools in colorspace. References providing more details: <https://doi.org/10.18637/jss.v096.i01> and <https://doi.org/10.32614/RJ-2023-071>.
Code repository changed from R-Forge to Codeberg at: <https://codeberg.org/zeileis/dichromat/>
Added basic altdoc page with overview and documentation at: <https://zeileis.codeberg.page/dichromat/>

Show all changes in 2.0-1Hide the rest of the changes in 2.0-1

Achim Zeileis takes over maintenance.

From NEWS.md in the release

Install

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

install.packages("dichromat", 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-dichromat

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-dichromat

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-dichromat

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: 1.3 min · r-release-macos-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

In release 2.0-1

READMEYes · 167 wordsVignettesNoNEWSYes · 67% structured · mentions 2.0-1Citation fileNoWebsiteYes

Help pages: 3
Examples that run: 100%3 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 50%
Help pages citing references: 100%

How these are measured

Downloads

325.1K

CRAN downloads in the past year

Rank #683 · ~891/day · ~27.1K/mo

Releases R versions

Daily download trend is not available in this view yet.

22.9K30 days

79.1K90 days

325.1K1 year

Compare downloads with other packages →

Also on3.7K r2u219 autocran34.7K conda_forge169 c2d4u

How downloads are counted

Repository

codeberg.org/zeileis/dichromat ↗

0Stars

0Forks

0Open issues

0Open PRs

19Commits

1Commit identities

19 commits · Last activity 2026-07-21

Responsiveness

not measured

How these are measured

PracticesBeta

Repository codeberg.org/zeileis/dichromat is linked, but repository-practices checks have not run for it yet. Checks are GitHub-only for now.

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

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

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

Depends (1)

R >= 2.10

Imports (2)

statsgrDevices

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3direct

4indirect

Imports 3

Suggested by 7

Depends, Imports or LinkingTo, most downloaded first

pals autoGO ternvis

Suggests, most downloaded first

scales viridis rasterVis jumble eSDM inlcolor reems

How these are counted

Code & Tests

Datasets

People & History

People (4)

Achim Zeileis

Author, Maintainer since 2.0-1 (2026) · added in 2.0-0

Thomas Lumley

Author

Kenneth Knoblauch

Contributor · added in 2.0-1

Scott Waichler

Contributor · added in 2.0-0

Previously maintained by Thomas Lumley (1.0 to 2.0-0.1).

Listed in earlier versions (1)

Ken Knoblauch

no longer listed · 2.0-0 to 2.0-0.1

Releases (9)

Pick two releases to compare their code metrics.

2.0-1Latest
record
2026-07-22 · 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
2.0-0.1
record
2022-05-02 · 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
R
R 3.1.0 released · 2014-04-10
R
R 3.0.0 released · 2013-04-03

Show 28 earlier eventsHide 28 earlier events

2.0-0
record
2013-01-24 · diff ↗
R
R 2.15.0 released · 2012-03-30
1.2-4
record
2012-01-06 · diff ↗
R
R 2.14.0 released · 2011-10-31
R
R 2.13.0 released · 2011-04-13
R
R 2.12.0 released · 2010-10-15
R
R 2.11.0 released · 2010-04-22
R
R 2.10.0 released · 2009-10-26
R
R 2.9.0 released · 2009-04-17
1.2-3
record
2009-02-25 · diff ↗ ·
added 2 exports
dichromat, colorschemes
R
R 2.8.0 released · 2008-10-20
R
R 2.7.0 released · 2008-04-22
R
R 2.6.0 released · 2007-10-03
R
R 2.5.0 released · 2007-04-24
1.2-2
record
2007-04-20 · diff ↗
R
R 2.4.0 released · 2006-10-03
R
R 2.3.0 released · 2006-04-24
R
R 2.2.0 released · 2005-10-06
R
R 2.1.0 released · 2005-04-18
1.2-1
record
2004-11-05 · diff ↗
R
R 2.0.0 released · 2004-10-04
1.1
record
2004-08-06 · diff ↗
R
R 1.9.0 released · 2004-04-12
R
R 1.8.0 released · 2003-10-08
R
R 1.7.0 released · 2003-04-16
R
R 1.6.0 released · 2002-10-01
1.0
record
2002-05-24
R
R 1.5.0 released · 2002-04-29

Package metadata

First published: 2002-05-24
Total releases: 9 / 24 yrs
License: GPL-2 OSI
Minimum R: ≥ 2.10
Bundled data: 12 KB / 1 file
Download size: 125 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("dichromat")

Format

Zeileis, A., Knoblauch, K., Lumley, T., & Waichler, S. (2026). dichromat: Color Schemes for Dichromats (Version 2.0-1) [Computer software]. https://doi.org/10.32614/CRAN.package.dichromat

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 dichromat version 2.0-1 [Data set]. HJJB, LLC. Data release v2026-10-26. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-26, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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