Spectran

1.0.6

Visual and Non-Visual Spectral Analysis of Light

0packages depend

2.2Kdownloads / year

–test coverage

0/13checks pass

Overview

About

Maintained by Johannes ZaunerFirst published 2023-11-092 releasesCRAN page ↗GitHub ↗

Analyse light spectra for visual and non-visual (often called melanopic) needs, wrapped up in a Shiny App. 'Spectran' allows for the import of spectra in various CSV forms but also provides a wide range of example spectra and even the creation of own spectral power distributions. The goal of the app is to provide easy access and a visual overview of the spectral calculations underlying common parameters used in the field. It is thus ideal for educational purposes or the creation of presentation ready graphs in lighting research and application. 'Spectran' uses equations and action spectra described in CIE S026 (2018) doi:10.25039/S026.2018, DIN/TS 5031-100 (2021) doi:10.31030/3287213, and ISO/CIE 23539 (2023) doi:10.25039/IS0.CIE.23539.2023.

Install

R (CRAN)pak (dev)Ubuntu (r2u)

install.packages("Spectran", 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("LiTGde/Spectran")

Development version from LiTGde/Spectran. 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-spectran

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

Health

CRAN checks

13NOTE

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc
NOTE r-devel-linux-x86_64-fedora-clang
NOTE r-devel-linux-x86_64-fedora-gcc
NOTE r-devel-windows-x86_64
NOTE r-oldrel-macos-arm64
NOTE r-oldrel-macos-x86_64
NOTE r-oldrel-windows-x86_64
NOTE r-patched-linux-x86_64
NOTE r-release-linux-x86_64
NOTE r-release-macos-arm64
NOTE r-release-macos-x86_64
NOTE r-release-windows-x86_64

Slowest check: 1.2 min · r-devel-linux-x86_64-fedora-clang

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-06-09
0 OK · 13 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
0 OK · 12 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
3 OK · 11 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 290 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

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

Downloads

2.2K

CRAN downloads in the past year

Rank #17,683 · ~6/day · ~187/mo

Releases R versions

Daily download trend is not available in this view yet.

20630 days

64190 days

2.2K1 year

Compare downloads with other packages →

Also on140 r2u

Repository

GitHub ↗ litgde/spectran

3Stars

0Forks

2Open issues

0Open PRs

5Releases

164Commits

2Contributors

164 commits · Last activity 2025-07-09

Stars over time

2025-03-31 · 32026-07-07 · 3

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/litgde/spectran on 2026-07-19.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (2)

renvdata-raw/

CRAN release process (1)

cran-comments.md

Docs source (1)

README.Rmd

Show all practices

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

43 external dependencies (excludes base and recommended)

Depends (1)

R >= 2.10

LinkingTo (0)

none

Suggests (8)

config here magick pkgload readxl rhub rmarkdown rsconnect

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (2)

Maintainer (1)

Johannes Zauner

Author, Maintainer, Copyright holder

Authors (1)

Johannes Zauner

Author, Maintainer, Copyright holder

Johannes Zauner

Author, Maintainer, Copyright holder

LiTG

Funder, Copyright holder

Funders (1)

LiTG

Funder, 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
1.0.6Latest
2024-07-04 · current release · diff ↗
R
R 4.4.0 released · 2024-04-24
1.0.3
2023-11-09
R
R 4.3.0 released · 2023-04-21

Package metadata

First published: 2023-11-09
Total releases: 2 / 3 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 2.10
Bundled data: 93 KB / 4 files
Download size: 4.5 MB
Installed size: not tracked yet
With dependencies: not tracked yet

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