R Observatory: Metrics for khroma version 1.17.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

khroma

1.17.0

Colour Schemes for Scientific Data Visualization

13packages depend

26.2Kdownloads / year

0.0%test coverage

13/13checks pass

Overview

About

Maintained by Nicolas FrerebeauFirst published 2018-10-1922 releasesCRAN page ↗Codeberg ↗

Color schemes ready for each type of data (qualitative, diverging or sequential), with colors that are distinct for all people, including color-blind readers. This package provides an implementation of Paul Tol (2018) and Fabio Crameri (2018) doi:10.5194/gmd-11-2541-2018 color schemes for use with 'graphics' or 'ggplot2'. It provides tools to simulate color-blindness and to test how well the colors of any palette are identifiable. Several scientific thematic schemes (geologic timescale, land cover, FAO soils, etc.) are also implemented.

Install

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

install.packages("khroma", 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-khroma

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-khroma

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-khroma

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 5.6 min · r-oldrel-macos-x86_64

Code health

Yes

Tests · ratio 0.00

0.0%

Coverage · measured lines

100%

Documentation · exports

5

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
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Show 1 earlier snapshots

NOTE2026-03-10
13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 436 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 98%
Return-value docs: 99%
References docs: 80%

Downloads

26.2K

CRAN downloads in the past year

Rank #3,023 · ~72/day · ~2.2K/mo

Releases R versions

Daily download trend is not available in this view yet.

1.4K30 days

4.4K90 days

26.2K1 year

Compare downloads with other packages →

Also on791 r2u15 autocran

Repository

Codeberg ↗ tesselle/khroma

Repository practices

Upstream repositoryBeta

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

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

Dependencies

Declared dependencies

11 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (5)

graphicsgrDevicesgridstatsutils

LinkingTo (0)

none

Suggests (11)

fontquiver ggplot2 ggraph knitr markdown rsvg scales spacesXYZ svglite tinysnapshot tinytest

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

13direct

2indirect

RLumCarlo RLumModel dimensio ggauto kinesis mappestRisk nexus spatialGE tabula tesselle ananke guideR midr

Code & Tests

People & History

People (6)

Maintainer (1)

Nicolas Frerebeau

Author, Maintainer

Authors (1)

Nicolas Frerebeau

Author, Maintainer

Contributors (2)

Vincent Arel-Bundock

Contributor · added in 1.4.0

Ulrik Stervbo

Contributor · added in 1.10.0

Funders (2)

CNRS

Funder · added in 1.12.0

Université Bordeaux Montaigne

Funder · added in 1.12.0

Other (1)

Brice Lebrun

art · added in 1.1.0

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
1.17.0Latest
2025-09-29 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
1.16.0
2025-02-25 · diff ↗
1.15.0
2025-01-10 · diff ↗
1.14.0
2024-08-26 · diff ↗
1.13.0
2024-07-01 · diff ↗
R
R 4.4.0 released · 2024-04-24
1.12.0
2024-01-08 · diff ↗
1.11.0
2023-08-21 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.10.0
2023-04-17 · diff ↗
1.9.0
2022-06-18 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.8.0
2022-01-20 · diff ↗
1.7.0
2021-09-02 · diff ↗

Show 15 earlier events

1.6.0
2021-06-14 · diff ↗
R
R 4.1.0 released · 2021-05-18
1.5.0
2021-04-23 · diff ↗
1.4.1
2021-03-17 · diff ↗
1.4.0
2020-10-05 · diff ↗
R
R 4.0.0 released · 2020-04-24
1.3.0
2019-10-26 · diff ↗
1.2.0
2019-08-19 · diff ↗
1.1.3
2019-06-05 · diff ↗
1.1.2
2019-06-02 · diff ↗
R
R 3.6.0 released · 2019-04-26
1.1.1
2019-04-10 · diff ↗
1.1.0
2019-02-24 · diff ↗
1.0.0
2018-10-19
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-10-19
Total releases: 22 / 8 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 3.5.0
Download size: 2.7 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("khroma")

Format

Frerebeau, N., CNRS, Université Bordeaux Montaigne, Arel-Bundock, V., Lebrun, B., & Stervbo, U. (2025). khroma: Colour Schemes for Scientific Data Visualization (Version 1.17.0) [Computer software]. https://doi.org/10.32614/CRAN.package.khroma

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.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for khroma version 1.17.0 [Data set]. HJJB, LLC. Data release v2026-08-15. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-15, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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