R Observatory: Metrics for colorSpec version 1.8-0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

colorSpec

1.8-0Package record

Color Calculations with Emphasis on Spectral Data

3packages dependsuggested by 1

9.4Kdownloads / year

27.6%test coverage

11/13flavors OK

Overview

About

Maintained by Glenn DavisCRAN page ↗

Calculate with spectral properties of light sources, materials, cameras, eyes, and scanners. Build complex systems from simpler parts using a spectral product algebra. For light sources, compute CCT, CRI, SSI, and IES TM-30 reports. For object colors, compute optimal colors and Logvinenko coordinates. Work with the standard CIE illuminants and color matching functions, and read spectra from text files, including CGATS files. Estimate a spectrum from its response. A user guide and 9 vignettes are included.

Changes in 1.8-0

added function referenceSpectraTM30()

From NEWS.md in the release

Install

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

install.packages("colorSpec", 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-colorspec

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-colorSpec

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-colorSpec

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

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘Glenn Davis <gdavis@gluonics.com>’

Found the following (possibly) invalid file URIs:
  URI: <gdavis@gluonics.com>
    From: inst/doc/blueflame.pdf
  URI: <gdavis@gluonics.com>
    From: inst/doc/convexity.pdf
  URI: <gdavis@gluonics.com>
    From: inst/doc/emulation.pdf
  URI: <gdavis@gluonics.com>
    From: inst/doc/gallery.pdf
  URI: <gdavis@gluonics.com>
    From: inst/doc/inversion.pdf
  URI: <gdavis@gluonics.com>
    From: inst/doc/lens-aging.pdf
  URI: <gdavis@gluonics.com>
    From: inst/doc/optimals.pdf

CRAN check page ↗

Slowest check: 5.9 min · r-oldrel-windows-x86_64

Status changes

NOTE11 OK, 2 NOTENow
NOTE9 OK, 5 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.8-0

READMEYes · 834 wordsVignettesYes · 10 · dynamicNEWSYes · 100% structured · mentions 1.8-0Citation fileYes · cites a publicationWebsitenot declared in DESCRIPTION

Help pages: 72includes a package overview page
Examples that run: 95%54 run in a plain check · 1 only when donttest examples are enabled (R CMD check --as-cran) · 2 never run
Exported functions with examples: 75%
Documented parameters: 92%
Return-value docs: 100%
Help pages citing references: 56%

Vignettes (10)

How these are measured

Downloads

9.4K

CRAN downloads in the past year

Rank #4,424 · ~26/day · ~785/mo

Releases R versions

Daily download trend is not available in this view yet.

64830 days

2K90 days

9.4K1 year

Compare downloads with other packages →

Also on229 r2u6 autocran

How downloads are counted

Dependencies

Declared dependencies

12 external dependencies (excludes base and recommended)

Installing colorSpec adds 1 package (0 with compiled code, 1.1 MB of source tarballs). Heaviest: logger 1.1 MB.

Depends (1)

R >= 4.0.0

Imports (1)

logger

LinkingTo (0)

none

Suggests (12)

spacesXYZ rootSolveMASSquadprog rgl spacesRGB zonohedra microbenchmark arrangements knitr rmarkdown png

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3direct

0indirect

Imports 3

Suggested by 1

Depends, Imports or LinkingTo, most downloaded first

photobiologyInOut Spectran OxSR

Suggests, most downloaded first

munsellinterpol

How these are counted

Code & Tests

Datasets

People & History

People (1)

Glenn Davis

Author, Maintainer since 0.5-2 (2016)

Releases (17)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
1.8-0Latest
record
2025-06-10 · current release · diff ↗ ·
added 1 export
referenceSpectraTM30
R
R 4.5.0 released · 2025-04-11
1.7-0
record
2025-02-12 · diff ↗ ·
added 6 exports
computeTM30, insideOptimalColors, sectionSchrodingerColors, insideSchrodingerColors, plot.TM30, print.TM30
1.6-0
record
2025-01-15 · diff ↗ ·
added 1 export
computeCRIdata
R
R 4.4.0 released · 2024-04-24
1.5-0
record
2024-01-28 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.4-0
record
2022-05-04 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.3-0
record
2021-12-20 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
1.2-1
record
2020-04-01 · diff ↗
1.1-1
record
2019-12-07 · diff ↗
1.0-1
record
2019-06-24 · diff ↗ ·
added 4 exports
canonicalOptimalColors, responsivityMetrics, bandRepresentation, bandMaterial

Show 12 earlier eventsHide 12 earlier events

0.9-1
record
2019-05-31 · diff ↗
R
R 3.6.0 released · 2019-04-26
0.8-3
record
2019-03-04 · diff ↗ ·
removed 4 exports
plotPatchesRGB, CCTfromXYZ, CCTfromxy, CCTfromuv

added 3 exports
computeSSI, sectionOptimalColors, plotOptimals2D
0.7-5
record
2018-11-19 · diff ↗ ·
added 3 exports
invert, rectangularMaterial, CCTfromxy
R
R 3.5.0 released · 2018-04-23
0.7-3
record
2018-04-02 · diff ↗ ·
added 9 exports
as.colorSpec, is.radiometric, actinometric, is.actinometric, ptransform, emulate, as.data.frame.colorSpec, atmosTransmittance, CCTfromuv
0.6-2
record
2017-12-04 · diff ↗
0.6-1
record
2017-11-17 · diff ↗ ·
added 2 exports
interpolate, readCGATS
R
R 3.4.0 released · 2017-04-21
0.5-3
record
2016-05-17 · diff ↗
0.5-2
record
2016-05-15
R
R 3.3.0 released · 2016-05-03

Package metadata

First published: 2016-05-15
Total releases: 17 / 10 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 4.0.0
Bundled data: 108 KB / 1 file
Download size: 3.1 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("colorSpec")

The package provides a citation file that builds its entry when R runs it. Run citation() to see it.

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 colorSpec version 1.8-0 [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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