R Observatory: Metrics for eigencore version 1.0.3

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

eigencore

1.0.3Package record

Certified Partial Eigenvalue and Singular Value Computation

1packages depend

999downloads / year

84.7%test coverage

13/13flavors OK

Overview

About

Maintained by Bradley BuchsbaumCRAN page ↗GitHub ↗Website ↗Issues ↗

Computes the top-k singular triplets or eigenpairs of large sparse and structured matrices: the computation behind principal component analysis on big sparse data, spectral embeddings, and low-rank approximation. Every result carries a numerical certificate with residuals, a backward-error bound, orthogonality loss, and a pass/fail flag, and bounds that can only be estimated are reported as such rather than passed. Centered, scaled, and composed operators are solved through native 'C++' kernels without forming dense matrices. Drop-in replacements for the 'RSpectra' interface are included.

Changes in 1.0.3

Fix compilation with LLVM 23 and libc++ 23. native_operators.cpp now includes <algorithm> directly for std::fill() instead of relying on a transitive standard-library include.
Add a regression test that audits shipped C++ sources and headers for direct ownership of <algorithm> when they use standard algorithms.

From NEWS.md in the release

Install

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

install.packages("eigencore", 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("bbuchsbaum/eigencore")

Development version from bbuchsbaum/eigencore. 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-eigencore

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-eigencore

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-eigencore

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: 4.6 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-02
ERROR5 OK, 2 ERROR2026-07-24

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.0.3

READMEYes · 978 wordsVignettesYes · 4 · dynamicNEWSYes · 100% structured · mentions 1.0.3Citation fileNoWebsiteYes · pkgdown

The repository also keeps web-only articles.

Help pages: 66 (12 internal)includes a package overview page
Examples that run: 100%18 run in a plain check
Exported functions with examples: 35%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

Vignettes (4)

How these are measured

Downloads

999

CRAN downloads in the past year

Rank #10,415 · ~3/day · ~83/mo

Releases R versions

Daily download trend is not available in this view yet.

31030 days

98890 days

9991 year

Compare downloads with other packages →

Also on66 r2u4 autocran

How downloads are counted

Repository

bbuchsbaum/eigencore ↗Account: bbuchsbaum

0Stars

0Forks

3Open issues

3Open PRs

3Releases

409Commits

2Commit identities

409 commits · Last activity 2026-10-17 · Default branch at 2.0.0, ahead of CRAN 1.0.3 (checked 2026-10-18)

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: not measured
Median days to close, 50 most recently updated closed PRs: 0

Releases over time

2026-07-24 · 02026-08-26 · 3

How these are measured

PracticesBeta

10 development-tooling and community-health practices detected across 5 families in the upstream repository

Checks run against github.com/bbuchsbaum/eigencore 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

Docs source (4)

README.Rmdpkgdown

GitHub Pages site last deployed 2026-10-17 · The repository has a site deploy workflow

pkgdown site last built 2026-10-17

Coverage (1)

Coverage reporting

CRAN release process (1)

cran-comments.md

Show all practicesHide 1 practice

Lint, format, editor (2)

lintrLint workflow

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

AI coding toolsBeta

This repository shows signs of AI coding tools.

Claude Codefirst seen 2026-04-24
Named in .Rbuildignore: CLAUDE.md
Named in .gitignore: .claude, CLAUDE.md
Pull request it wrote: opened by a project member
Commits: 160 by its own account · at least 138 crediting it in the message
Cursorfirst seen 2026-06-08
Pull request it wrote: opened by a project member
Commits: at least 4 crediting it in the message

Models named in its commits

Claude Opus 5.595 commits · Oct 2026
Claude Fable 57 commits · Jul 2026
Claude Opus 4.75 commits · Apr 2026
Claude Opus 4.84 commits · Jun to Jul 2026
Claude Sonnet 51 commit · Jul 2026

Some of these counts are a minimum, because the search stopped before the oldest commits.

Counts are commits, not lines of code. Commits by a tool's accounts count once across all of its accounts. Commits crediting it are the largest count among its credit lines, a minimum.How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

7 external dependencies (excludes base and recommended)

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

Depends (1)

R >= 4.1

Imports (2)

Matrixmethods

LinkingTo (0)

none

Suggests (7)

bench knitr rmarkdown RSpectra irlba rsvd testthat (>= 3.0.0)

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

Imports 1

Depends, Imports or LinkingTo, most downloaded first

genpca

How these are counted

Code & Tests

People & History

People (1)

Bradley Buchsbaum

Releases (4)

Pick two releases to compare their code metrics.

1.0.3Latest
record
2026-08-26 · current release · diff ↗
1.0.2
record
2026-07-25 · diff ↗
1.0.1
record
2026-07-24 · diff ↗
1.0.0
record
2026-07-23
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-07-23
Total releases: 4 / 1 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.1
Download size: 2.7 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("eigencore")

Format

Buchsbaum, B. (2026). eigencore: Certified Partial Eigenvalue and Singular Value Computation (Version 1.0.3) [Computer software]. https://doi.org/10.32614/CRAN.package.eigencore

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 eigencore version 1.0.3 [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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