R Observatory: Metrics for nsprcomp version 0.5.1-2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

nsprcomp

0.5.1-2

Non-Negative and Sparse PCA

1packages depend

5.7Kdownloads / year

92.2%test coverage

13/13checks pass

Overview

About

Maintained by Christian SiggFirst published 2013-04-166 releasesCRAN page ↗GitHub ↗

Two methods for performing a constrained principal component analysis (PCA), where non-negativity and/or sparsity constraints are enforced on the principal axes (PAs). The function 'nsprcomp' computes one principal component (PC) after the other. Each PA is optimized such that the corresponding PC has maximum additional variance not explained by the previous components. In contrast, the function 'nscumcomp' jointly computes all PCs such that the cumulative variance is maximal. Both functions have the same interface as the 'prcomp' function from the 'stats' package (plus some extra parameters), and both return the result of the analysis as an object of class 'nsprcomp', which inherits from 'prcomp'. See https://sigg-iten.ch/learningbits/2013/05/27/nsprcomp-is-on-cran/ and Sigg et al. (2008) doi:10.1145/1390156.1390277 for more details.

Install

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

install.packages("nsprcomp", 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("chrsigg/nsprcomp")

Development version from chrsigg/nsprcomp. 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-nsprcomp

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-nsprcomp

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-nsprcomp

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

Health

CRAN checks

13OK

Slowest check: 1.5 min · r-devel-windows-x86_64

Code health

Yes

Tests · ratio 0.75

92.2%

Coverage · measured lines

100%

Documentation · exports

1

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

Documentation

READMEYes · 846 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 73%
Return-value docs: 60%
References docs: 40%

Downloads

5.7K

CRAN downloads in the past year

Rank #7,621 · ~16/day · ~472/mo

Releases R versions

Daily download trend is not available in this view yet.

31230 days

1.1K90 days

5.7K1 year

Compare downloads with other packages →

Also on108 r2u11 autocran1K conda_forge73 c2d4u

Repository

GitHub ↗ chrsigg/nsprcomp

9Stars

6Forks

0Open issues

0Open PRs

0Releases

36Commits

1Contributors

36 commits · Last activity 2018-06-05

Stars over time

2020-06-23 · 92026-07-07 · 9

Repository practices

Upstream repositoryBeta

Checks run against github.com/chrsigg/nsprcomp on 2026-08-23.

No development-tooling practices detected in the upstream repository.

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

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.4.0

Imports (1)

stats

LinkingTo (0)

none

Suggests (3)

MASStestthat roxygen2

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

GWnnegPCA

Code & Tests

People & History

People (2)

Maintainer (1)

Christian Sigg

Author, Maintainer · added in 0.3

Authors (1)

Christian Sigg

Author, Maintainer · added in 0.3

Contributors (1)

R Core team

Contributor

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
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R 4.3.0 released · 2023-04-21
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R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
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R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
0.5.1-2Latest
2018-06-05 · current release · diff ↗
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16
0.5
2014-07-17 · diff ↗
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R 3.1.0 released · 2014-04-10
0.4.1
2013-09-22 · diff ↗

Show 4 earlier events

0.4
2013-09-19 · diff ↗
0.3
2013-05-29 · diff ↗
0.2
2013-04-16
R
R 3.0.0 released · 2013-04-03

Package metadata

First published: 2013-04-16
Total releases: 6 / 13 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.4.0
Download size: 20 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Psychometric Models and Methods

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("nsprcomp")

Format

Sigg, C., & R Core team. (2018). nsprcomp: Non-Negative and Sparse PCA (Version 0.5.1-2) [Computer software]. https://doi.org/10.32614/CRAN.package.nsprcomp

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 nsprcomp version 0.5.1-2 [Data set]. HJJB, LLC. Data release v2026-08-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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