R Observatory: Metrics for corridoR version 0.2.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

corridoR

0.2.0Package record

Migration Corridors and Genetic Range Shifts from Landscape Genetic Data

0packages depend

38downloads / year

85.3%test coverage

10/10flavors OK

Overview

About

Maintained by Paul A. MaierCRAN page ↗GitHub ↗Website ↗Issues ↗

Models genetic connectivity along migration corridors and forecasts how it shifts under climate change, following Maier et al. (2022) doi:10.1038/s41437-022-00561-x. Least cost corridors are built from accumulated cost surfaces and used as weights to summarize raw environmental layers between sites; each group of environmental features can choose its own corridor bandwidth; and pairwise predictions of differentiation and directional migration are mapped back onto the landscape as magnitude and net-direction surfaces. Includes readers for common genotype formats (STRUCTURE, GENEPOP, VCF, GenAlEx, FSTAT and PLINK files, and 'adegenet' objects), pairwise fixation indices, and the directional differentiation of Sundqvist et al. (2016) doi:10.1002/ece3.2096.

Changes in 0.2.0

The package description no longer starts with "Tools for", and file formats are no longer quoted (CRAN request).
The example data no longer raise warnings with older GDAL and PROJ libraries: the sites are stored as GeoPackage 1.2, and the example coordinate system names its datum (WGS84) explicitly. Coordinates and values are unchanged.
New rank_resistance() compares candidate resistance surfaces by how well least cost distance through each explains genetic distance (mixed models with source and destination as random effects), with straight-line distance as a baseline. The tutorial uses it in step 2.
fit_connectivity() and select_bandwidth() now keep both directions of a pair (A to B and B to A) in the same cross-validation fold. Before, a pair could be predicted from its own reverse, which inflated cross-validated R2 and could favor overfit settings.

From NEWS.md in the release

Install

R (CRAN)pak (dev)Fedora (COPR)

install.packages("corridoR", 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("paulmaier/corridoR")

Development version from paulmaier/corridoR. Installs pak first if it is not already available.

# 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-corridoR

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

Health

CRAN checks

10OK

CRAN check page ↗

Slowest check: 9.8 min · r-oldrel-windows-x86_64

Status changes

OK10 OKNow
OK6 OK2026-10-23

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.2.0

READMEYes · 468 wordsVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 0.2.0Citation fileYes · cites a publicationWebsiteYes

Help pages: 24 (1 internal)includes a package overview page
Examples that run: 50%11 run in a plain check · 11 only when donttest examples are enabled (R CMD check --as-cran)
Exported functions with examples: 100%
Documented parameters: 84%
Return-value docs: 100%
Help pages citing references: 17%

Vignettes (1)

Getting started with corridoR HTML

How these are measured

Downloads

38

CRAN downloads in the past year

Rank #25,706 · ~0/day · ~3/mo

corridoR Releases R versions

Daily download trend is not available in this view yet.

3830 days

3890 days

381 year

Compare downloads with other packages →

How downloads are counted

Repository

paulmaier/corridor ↗Account: paulmaier

0Stars

0Forks

0Open issues

0Open PRs

2Releases

16Commits

1Commit identities

climate-changeconnectivityconservation-geneticscubistfstgene-flowlandscape-geneticsleast-cost-path

16 commits · Last activity 2026-10-22

Responsiveness

not measured

How these are measured

PracticesBeta

Repository github.com/paulmaier/corridor is linked, but repository-practices checks have not run for it yet.

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

15 external dependencies (excludes base and recommended)

Installing corridoR adds 22 packages (17 with compiled code, 31 MB of source tarballs). Heaviest: sf 9.3 MB, igraph 4.8 MB, sp 4.3 MB.

Depends (1)

R >= 4.1

Imports (8)

gdistancegraphicsgrDevicesraster sfstatsterrautils

LinkingTo (0)

none

Suggests (11)

adegenet caret Cubist exactextractr ggplot2 knitr lme4 ranger rmarkdown testthat vcfR

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

Datasets

People & History

People (1)

Paul A. Maier

Releases (1)

0.2.0Latest
record
2026-10-22 · current release ·
8 days in CRAN's queue
Listed in CRAN's incoming queue from 2026-10-14 15:39 to 2026-10-22 12:59 UTC, in 48 readings.
R
R 4.6.0 released · 2026-04-24

Across CRAN, the median accepted release of the past year spent 26 hours in the queue, 90% under 11 days.How queue time is measured

Package metadata

First published: 2026-10-22
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.1
Download size: 4.6 MB

Cite

Cite this package

Run in R for the authors' entry:

citation("corridoR")

The package provides a citation file, so citation() returns the authors' own entry.

It points to 10.1038/s41437-022-00561-x.

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 corridoR version 0.2.0 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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