R Observatory: Metrics for nipals version 1.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

nipals

1.2Package record

Principal Components Analysis using NIPALS or Weighted EMPCA, with Gram-Schmidt Orthogonalization

3packages depend

30.1Kdownloads / year

87.2%test coverage

13/13flavors OK

Overview

About

Maintained by Kevin WrightCRAN page ↗GitHub ↗Website ↗Issues ↗

Principal Components Analysis of a matrix using Non-linear Iterative Partial Least Squares or weighted Expectation Maximization PCA with Gram-Schmidt orthogonalization of the scores and loadings. Optimized for speed. See Andrecut (2009) doi:10.1089/cmb.2008.0221.

Changes in 1.2

Fix CRAN check notes.
Use Air formatter
Reviewed by Claude Opus.

From NEWS.md in the release

Install

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

install.packages("nipals", 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("kwstat/nipals")

Development version from kwstat/nipals. 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-nipals

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-nipals

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-nipals

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: 2.2 min · r-oldrel-macos-x86_64

Status changes

OK13 OK2026-09-12
NOTE11 OK, 2 NOTE2026-07-16
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.2

READMENoVignettesYes · 4 · dynamicNEWSYes · 100% structured · mentions 1.2Citation fileNoWebsiteYes · pkgdown

Help pages: 4
Examples that run: 100%4 run in a plain check
Exported functions with examples: 100%
Documented parameters: 90%
Return-value docs: 100%
Help pages citing references: 100%

Vignettes (4)

How these are measured

Downloads

30.1K

CRAN downloads in the past year

Rank #2,435 · ~83/day · ~2.5K/mo

Releases R versions

Daily download trend is not available in this view yet.

2K30 days

6.6K90 days

30.1K1 year

Compare downloads with other packages →

Also on164 r2u3 autocran672 conda_forge138 c2d4u

How downloads are counted

Repository

kwstat/nipals ↗Account: kwstat

7Stars

1Forks

0Open issues

0Open PRs

0Releases

41Commits

2Commit identities

41 commits · Last activity 2026-09-09

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 3
Median days to close, 50 most recently updated closed PRs: 0

Commits over time

2026-07-19 · 382026-09-15 · 41

How these are measured

PracticesBeta

7 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/kwstat/nipals on 2026-10-18.

Continuous integration (1)

GitHub Actions

Docs source (3)

pkgdown

GitHub Pages site last deployed 2026-09-09 · The repository has a site deploy workflow

pkgdown site last built 2026-09-09

CRAN release process (1)

cran-comments.md

Lint, format, editor (2)

AirVS Code

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

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Installing nipals adds no packages beyond those that come with R.

Depends (1)

R >= 3.4.0

Imports (0)

none

LinkingTo (0)

none

Suggests (3)

knitr rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3direct

0indirect

Imports 3

Depends, Imports or LinkingTo, most downloaded first

gge areabiplot powerPLS

How these are counted

Code & Tests

Datasets

People & History

People (1)

Kevin Wright

Releases (7)

Pick two releases to compare their code metrics.

1.2Latest
record
2026-09-09 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
1.0
record
2024-12-02 · diff ↗ ·
added 1 export
avg_angular_distance
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
0.8
record
2021-09-15 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
0.7
record
2020-01-24 · diff ↗ ·
added 1 export
empca
R
R 3.6.0 released · 2019-04-26
0.5
record
2018-10-24 · diff ↗
R
R 3.5.0 released · 2018-04-23
0.4
record
2018-02-11 · diff ↗
0.3
record
2017-11-14

Show 1 earlier eventHide 1 earlier event

R
R 3.4.0 released · 2017-04-21

Package metadata

First published: 2017-11-14
Total releases: 7 / 9 yrs
License: MIT + file LICENSE OSI · relicensed from GPL-3 in 1.0
Minimum R: ≥ 3.4.0
Bundled data: 1.6 KB / 1 file
Download size: 130 KB

Appears in task views

Missing Data

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("nipals")

Format

Wright, K. (2026). nipals: Principal Components Analysis using NIPALS or Weighted EMPCA, with Gram-Schmidt Orthogonalization (Version 1.2) [Computer software]. https://doi.org/10.32614/CRAN.package.nipals

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 nipals version 1.2 [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.

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