R Observatory: Metrics for colorfast version 1.0.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

colorfast

1.0.1

Fast Conversion of R Colors to Color Component Values and Native Packed Integer Format

4packages depend

4.3Kdownloads / year

85.1%test coverage

13/13checks pass

Overview

About

Maintained by Mike ChengFirst published 2024-12-162 releasesCRAN page ↗GitHub ↗

Color values in R are often represented as strings of hexadecimal colors or named colors. This package offers fast conversion of these color representations to either an array of red/green/blue/alpha values or to the packed integer format used in native raster objects. Functions for conversion are also exported at the 'C' level for use in other packages. This fast conversion of colors is implemented using an order-preserving minimal perfect hash derived from Majewski et al (1996) "A Family of Perfect Hashing Methods" doi:10.1093/comjnl/39.6.547.

Install

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

install.packages("colorfast", 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("coolbutuseless/colorfast")

Development version from coolbutuseless/colorfast. 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-colorfast

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-colorfast

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-colorfast

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

Health

CRAN checks

13OK

Slowest check: 2.1 min · r-devel-windows-x86_64

Code health

Yes

Tests · ratio 2.65

85.1%

Coverage · measured lines

100%

Documentation · exports

0

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
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 100%
References docs: 0%

Downloads

4.3K

CRAN downloads in the past year

Rank #8,255 · ~12/day · ~355/mo

Releases R versions

Daily download trend is not available in this view yet.

30130 days

1.1K90 days

4.3K1 year

Compare downloads with other packages →

Also on449 r2u13 autocran

Repository

GitHub ↗ coolbutuseless/colorfast

10Stars

0Forks

0Open issues

0Open PRs

0Releases

20Commits

1Contributors

20 commits · Last activity 2025-02-17

Stars over time

2025-06-24 · 102026-07-07 · 10

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/coolbutuseless/colorfast on 2026-08-16.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (1)

Dev Container

Docs source (1)

README.Rmd

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

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (0)

none

LinkingTo (0)

none

Suggests (3)

knitr rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

4direct

0indirect

isocubes fastpng nara fastpng isocubes nara bittermelon

Code & Tests

People & History

People (1)

Maintainer (1)

Mike Cheng

Author, Maintainer, Copyright holder

Authors (1)

Mike Cheng

Author, Maintainer, Copyright holder

Copyright holders (1)

Mike Cheng

Author, Maintainer, Copyright holder

Package Timeline

2 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
1.0.1Latest
2025-01-13 · current release · diff ↗
1.0.0
2024-12-16
R
R 4.4.0 released · 2024-04-24

Package metadata

First published: 2024-12-16
Total releases: 2 / 2 yrs
License: MIT + file LICENSE OSI
Download size: 38 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("colorfast")

Format

Cheng, M. (2025). colorfast: Fast Conversion of R Colors to Color Component Values and Native Packed Integer Format (Version 1.0.1) [Computer software]. https://doi.org/10.32614/CRAN.package.colorfast

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 colorfast version 1.0.1 [Data set]. HJJB, LLC. Data release v2026-08-22. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-22, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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