R Observatory: Metrics for quadform version 0.0-4

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

quadform

0.0-4Package record

Efficient Evaluation of Quadratic Forms

8packages dependsuggested by 2

6.4Kdownloads / year

100.0%test coverage

13/13flavors OK

Overview

About

Maintained by Robin K. S. HankinCRAN page ↗GitHub ↗Issues ↗

A range of quadratic forms are evaluated, using efficient methods. Unnecessary transposes are not performed. Complex values are handled consistently.

Changes in 0.0-4

typos
tragula example article
remove mathjax dependence
use of roxygen for exports

From NEWS.md in the release

Install

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

install.packages("quadform", 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("RobinHankin/quadform")

Development version from RobinHankin/quadform. 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-quadform

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-quadform

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-quadform

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: 51 s · r-oldrel-macos-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.0-4

READMEYes · 244 wordsVignettesNoNEWSYes · 100% structured · mentions 0.0-4Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 1
Examples that run: 100%1 run in a plain check
Exported functions with examples: 100%
Documented parameters: 33%
Return-value docs: 100%
Help pages citing references: 0%

How these are measured

Downloads

6.4K

CRAN downloads in the past year

Rank #3,156 · ~17/day · ~530/mo

Releases R versions

Daily download trend is not available in this view yet.

2.4K30 days

3.8K90 days

6.4K1 year

Compare downloads with other packages →

Also on189 r2u4 autocran

How downloads are counted

Repository

robinhankin/quadform ↗Account: RobinHankin

0Stars

0Forks

0Open issues

0Open PRs

0Releases

Last activity 2026-04-14 · Default branch at 0.0-4-1, ahead of CRAN 0.0-4 (checked 2026-10-11)

Responsiveness

not measured

How these are measured

PracticesBeta

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

Checks run against github.com/robinhankin/quadform on 2026-10-11.

Continuous integration (1)

GitHub Actions

Governance and community (2)

Code of conductContributing guide

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

1 external dependency (excludes base and recommended)

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

Depends (1)

R >= 3.0.1

Imports (0)

none

LinkingTo (0)

none

Suggests (1)

testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

8direct

14indirect

Imports 8

Suggested by 2

Depends, Imports or LinkingTo, most downloaded first

emulator jordan approximator MM multivator cmvnorm lorentz catalytic

Suggests, most downloaded first

clifford stokes

How these are counted

Code & Tests

People & History

People (1)

Robin K. S. Hankin

Author, Maintainer since 0.0-1 (2024)

Listed in earlier versions (1)

Hankin

no longer listed · 0.0-1 to 0.0-4

Releases (3)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
0.0-4Latest
record
2025-11-11 · current release · diff ↗ ·
removed 1 export
pattern:^[^\\.]

added 36 exports
cp, cprod, ht, q3, q3d, q3i, q3t, q3td, qd, qf, qfi, qt, qtd, qti, qtr, qttr, quad.diag, quad.form, quad.form.chol, quad.form.inv, quad.tdiag, quad.tform, quad.tform.inv, quad.trace, quad.ttrace, quad3.diag, quad3.form, quad3.form.inv, quad3.form_ab, quad3.form_bc and 6 more
R
R 4.5.0 released · 2025-04-11
0.0-2
record
2024-05-14 · diff ↗
R
R 4.4.0 released · 2024-04-24
0.0-1
record
2024-04-10
R
R 4.3.0 released · 2023-04-21

Package metadata

First published: 2024-04-10
Total releases: 3 / 2 yrs
License: GPL
Minimum R: ≥ 3.0.1
Download size: 65 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("quadform")

Format

Hankin, R. K. S. (2025). quadform: Efficient Evaluation of Quadratic Forms (Version 0.0-4) [Computer software]. https://doi.org/10.32614/CRAN.package.quadform

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 quadform version 0.0-4 [Data set]. HJJB, LLC. Data release v2026-10-19. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-19, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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