R Observatory: Metrics for LearnPCA version 0.3.4

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

LearnPCA

0.3.4Package record

Functions, Data Sets and Vignettes to Aid in Learning Principal Components Analysis (PCA)

0packages depend

7.4Kdownloads / year

10.9%test coverage

13/13flavors OK

Overview

About

Maintained by Bryan A. HansonCRAN page ↗GitHub ↗Website ↗Issues ↗

Principal component analysis (PCA) is one of the most widely used data analysis techniques. This package provides a series of vignettes explaining PCA starting from basic concepts. The primary purpose is to serve as a self-study resource for anyone wishing to understand PCA better. A few convenience functions are provided as well.

Changes in 0.3.4

Branch master renamed to main, with corresponding changes to documentation and GHA scripts.
Added pkgs rpart, class, nnet to Depends: (found during stress testing, needed by chemometrics and somehow not automatically present).
Fix navigation error in top_matter.md, found by DTH, and a similar one in refer_to_works_consulted.md identified with further testing.
New vignette: Vig_08_Notes.
New language in Vig_06 about the meaning of the term "loadings", along with a correction. Motivated by SantiDu in Issue #14 -- thanks!
Misc changes to satisfy CRAN, most notably no longer exporting .demo_PCsearch().

From NEWS.md in the release

Install

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

install.packages("LearnPCA", 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("bryanhanson/LearnPCA")

Development version from bryanhanson/LearnPCA. 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-learnpca

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-LearnPCA

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-LearnPCA

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

13OK

CRAN check page ↗

Slowest check: 5.7 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-08
OK12 OK2026-04-25

Show 2 earlier changesHide 2 earlier changes

ERROR13 OK, 1 ERROR2026-03-30
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.3.4

README· In the repository, left out of the releaseVignettesYes · 11 · dynamicNEWSYes · 67% structured · mentions 0.3.4Citation fileNoWebsiteYes · pkgdown

Help pages: 4includes a package overview page
Examples that run: 100%2 run in a plain check
Exported functions with examples: 67%
Documented parameters: 100%
Return-value docs: 67%
Help pages citing references: 0%

Vignettes (11)

Show 1 moreHide 1 vignette

works_consulted

How these are measured

Downloads

7.4K

CRAN downloads in the past year

Rank #7,642 · ~20/day · ~618/mo

Releases R versions

Daily download trend is not available in this view yet.

42830 days

1.2K90 days

7.4K1 year

Compare downloads with other packages →

Also on92 r2u3 autocran67 c2d4u

How downloads are counted

Repository

bryanhanson/learnpca ↗Account: bryanhanson

14Stars

4Forks

2Open issues

0Open PRs

0Releases

338Commits

3Commit identities

338 commits · Last activity 2024-05-17 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 86%
Median days to close, 50 most recently updated closed issues: 21
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2025-05-23 · 112026-07-07 · 14

How these are measured

PracticesBeta

7 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/bryanhanson/learnpca on 2026-10-18.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Governance and community (2)

Code of conductContributing guide

Docs source (3)

pkgdown

GitHub Pages site last deployed 2024-04-26 · The repository has a site deploy workflow

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

15 external dependencies (excludes base and recommended)

Installing LearnPCA adds 33 packages (20 with compiled code, 26 MB of source tarballs). Heaviest: bslib 5.6 MB, promises 3.1 MB, sass 2.9 MB.

Depends (3)

rpartclassnnet

Imports (4)

markdown shinystatsgraphics

LinkingTo (0)

none

Suggests (13)

ChemoSpec chemometrics knitr tinytest roxut rmarkdown plot3D ade4 plotrix latex2exp plotly xtable bookdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (2)

Bryan A. Hanson

Author, Maintainer since 0.1.1 (2022)

David T. Harvey

Author

Releases (5)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
0.3.4Latest
record
2024-04-26 · current release · diff ↗ ·
removed 1 export
.demo_PC_search
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
0.2.0
record
2022-05-02 · diff ↗ ·
added 2 exports
.demo_PC_search, PCsearch
R
R 4.2.0 released · 2022-04-22
0.1.4
record
2022-03-31 · diff ↗
0.1.3
record
2022-03-12 · diff ↗
0.1.1
record
2022-02-03
R
R 4.1.0 released · 2021-05-18

Package metadata

First published: 2022-02-03
Total releases: 5 / 4 yrs
License: GPL-3 OSI
Download size: 1.3 MB

Appears in task views

Chemometrics and Computational Physics

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("LearnPCA")

Format

Hanson, B. A., & Harvey, D. T. (2024). LearnPCA: Functions, Data Sets and Vignettes to Aid in Learning Principal Components Analysis (PCA) (Version 0.3.4) [Computer software]. https://doi.org/10.32614/CRAN.package.LearnPCA

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

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 LearnPCA version 0.3.4 [Data set]. HJJB, LLC. Data release v2026-10-22. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-22, which the citation names so these numbers can be found later. More on citing and the projects behind them.

Report a problem with this page →