R Observatory: Metrics for ferrn version 0.3.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

ferrn

0.3.0

Facilitate Exploration of touRR optimisatioN

0packages depend

2.9Kdownloads / year

18.3%test coverage

13/13checks pass

Overview

About

Maintained by H. Sherry ZhangFirst published 2021-03-174 releasesCRAN page ↗GitHub ↗

Diagnostic plots for optimisation, with a focus on projection pursuit. These show paths the optimiser takes in the high-dimensional space in multiple ways: by reducing the dimension using principal component analysis, and also using the tour to show the path on the high-dimensional space. Several botanical colour palettes are included, reflecting the name of the package. A paper describing the methodology can be found at https://journal.r-project.org/articles/RJ-2021-105/index.html.

Install

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

install.packages("ferrn", 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("huizezhang-sherry/ferrn")

Development version from huizezhang-sherry/ferrn. 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-ferrn

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-ferrn

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-ferrn

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

Health

CRAN checks

13OK

Slowest check: 2.9 min · r-oldrel-macos-x86_64

Code health

Yes

Tests · ratio 44.96

18.3%

Coverage · measured lines

98%

Documentation · exports

17

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
OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 329 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 94%
Documented parameters: 97%
Return-value docs: 93%
References docs: 0%

Downloads

2.9K

CRAN downloads in the past year

Rank #13,675 · ~8/day · ~238/mo

Releases R versions

Daily download trend is not available in this view yet.

22630 days

75590 days

2.9K1 year

Compare downloads with other packages →

Also on139 r2u16 autocran

Repository

GitHub ↗ huizezhang-sherry/ferrn

6Stars

2Forks

1Open issues

0Open PRs

1Releases

258Commits

4Contributors

258 commits · Last activity 2025-11-20

Stars over time

2023-04-21 · 62026-07-07 · 6

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/huizezhang-sherry/ferrn on 2026-08-09.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (1)

data-raw/

CRAN release process (1)

cran-comments.md

Docs source (1)

README.Rmd

Show all practices

Lint, format, editor (1)

RStudio project

Coverage (1)

Codecov

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

Dependencies

Declared dependencies

26 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (17)

rlang dplyr magrittr scales gganimate ggplot2 tibble purrr tourr stringr ggrepel ggforce tidyr cli progress glue GpGp

LinkingTo (0)

none

Suggests (9)

roxygen2 covr pkgdown testthat forcats patchwork future.apply ash vdiffr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Datasets

People & History

People (5)

Maintainer (1)

H. Sherry Zhang

Author, Maintainer

Authors (5)

H. Sherry Zhang

Author, Maintainer

Dianne Cook

Author · added in 0.0.2

Ursula Laa

Author

Nicolas Langrené

Author

Patricia Menéndez

Author

Listed in earlier versions (1)

Di Cook

no longer listed · 0.0.1

Package Timeline

4 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
0.3.0Latest
2025-11-20 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
0.1.0
2024-06-24 · diff ↗
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
0.0.2
2022-08-06 · diff ↗
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
0.0.1
2021-03-17
R
R 4.0.0 released · 2020-04-24

Package metadata

First published: 2021-03-17
Total releases: 4 / 5 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.1.0
Bundled data: 1.1 MB / 19 files
Download size: 3.2 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Dynamic Visualizations and Interactive Graphics

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("ferrn")

Format

Zhang, H. S., Cook, D., Laa, U., Langrené, N., & Menéndez, P. (2025). ferrn: Facilitate Exploration of touRR optimisatioN (Version 0.3.0) [Computer software]. https://doi.org/10.32614/CRAN.package.ferrn

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 ferrn version 0.3.0 [Data set]. HJJB, LLC. Data release v2026-08-13. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-13, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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