moonlit

0.1.1

Predicting Moonlight Intensity for a Given Time and Location

0packages depend

951downloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Michal SmielakFirst published 2026-03-061 releasesCRAN page ↗GitHub ↗

Tools for predicting moonlight intensity on the ground based on the position of the moon, atmospheric conditions, and other factors. Provides functions to calculate moonlight intensity and related statistics for ecological and behavioral research, offering more accurate estimates than simple moon phase calculations. The underlying model is described in Smielak (2023) doi:10.1007/s00265-022-03287-2.

Install

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

install.packages("moonlit", 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("msmielak/moonlit")

Development version from msmielak/moonlit. 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-moonlit

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-moonlit

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-moonlit

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

Health

CRAN checks

13OK

Slowest check: 1.0 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.52

not tracked

Coverage

100%

Documentation · exports

None

Vignettes

README

Dependencies · direct

Check history

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

Downloads

951

CRAN downloads in the past year

Rank #21,323 · ~3/day · ~79/mo

Releases R versions

Daily download trend is not available in this view yet.

21030 days

56290 days

9511 year

Compare downloads with other packages →

Also on28 r2u16 autocran

Repository

GitHub ↗ msmielak/moonlit

13Stars

2Forks

2Open issues

0Open PRs

0Releases

License GPL-3.0

Stars over time

2025-06-23 · 102026-07-07 · 13

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (2)

suncalc lubridate

LinkingTo (0)

none

Suggests (1)

testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

R 910 (88%)Rd 121 (12%)

Code characteristics

Cyclomatic complexity: 14.0 median / 18 max
Test cases: 40 / 0.52 per code line
Documented parameters: 100%

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

3 3 exported

Complexity

11.7 avg / 18 max

Call network

3 nodes / 1 edges

Test coverage has not been measured for this package yet; nodes fall back to a neutral fill.

Call graph

Open call graph →

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Lowest coverage

Per-function coverage is not measured for this package yet.

People & History

People (1)

Maintainer (1)

Michal Smielak

Author, Maintainer

Authors (1)

Michal Smielak

Author, Maintainer

Release timeline

1 release. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
0.1.1Latest
2026-03-10 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-03-06
Total releases: 1 / 1 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.5.0
Download size: 1.2 MB
Installed size: not tracked yet
With dependencies: not tracked yet