qfratio

1.1.2

Moments and Distributions of Ratios of Quadratic Forms Using Recursion

0packages depend

3.1Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Junya WatanabeFirst published 2023-03-165 releasesCRAN page ↗GitHub ↗

Evaluates moments of ratios (and products) of quadratic forms in normal variables, specifically using recursive algorithms developed by Bao and Kan (2013) doi:10.1016/j.jmva.2013.03.002 and Hillier et al. (2014) doi:10.1017/S0266466613000364. Also provides distribution, quantile, and probability density functions of simple ratios of quadratic forms in normal variables with several algorithms. Originally developed as a supplement to Watanabe (2023) doi:10.1007/s00285-023-01930-8 for evaluating average evolvability measures in evolutionary quantitative genetics, but can be used for a broader class of statistics. Generating functions for these moments are also closely related to the top-order zonal and invariant polynomials of matrix arguments.

Install

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

install.packages("qfratio", 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("watanabe-j/qfratio")

Development version from watanabe-j/qfratio. 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-qfratio

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-qfratio

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-qfratio

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

Health

CRAN checks

13OK

Slowest check: 11.2 min · r-release-macos-x86_64

Code health

Yes

Tests · ratio 0.13

not tracked

Coverage

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
12 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-22
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE

Show 1 earlier snapshots

NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 887 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 52%
Return-value docs: 100%
References docs: 40%

Downloads

3.1K

CRAN downloads in the past year

Rank #12,663 · ~9/day · ~262/mo

Releases R versions

Daily download trend is not available in this view yet.

33730 days

81690 days

3.1K1 year

Compare downloads with other packages →

Also on404 r2u24 autocran33 c2d4u

Repository

GitHub ↗ watanabe-j/qfratio

2Stars

0Forks

0Open issues

0Open PRs

6Releases

353Commits

2Contributors

quadratic-formsrr-packagercpprcppeigenzonal-polynomials

License GPL-3.0 · 353 commits · Last activity 2026-07-22 · 0% stars, 30d

Stars over time

2023-05-26 · 12026-07-07 · 2

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/watanabe-j/qfratio on 2026-07-30.

Continuous integration (1)

GitHub Actions

CRAN release process (1)

cran-comments.md

Docs source (1)

README.Rmd

Lint, format, editor (1)

lintr

Show all practices

Git structural (1)

.gitattributes

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

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (3)

RcppMASSstats

LinkingTo (2)

Rcpp RcppEigen

Suggests (6)

mvtnorm CompQuadFormgraphicstestthat knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (7)

Maintainer (1)

Junya Watanabe

Author, Maintainer, Copyright holder

Authors (1)

Junya Watanabe

Author, Maintainer, Copyright holder

Junya Watanabe

Author, Maintainer, Copyright holder

Free Software Foundation, Inc.

Package Timeline

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

1.1.2Latest
2026-07-23 · current release · diff ↗
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
1.1.1
2024-02-09 · diff ↗
1.1.0
2023-10-02 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.0.1
2023-04-02 · diff ↗
unarchivedReturned to CRAN
2023-04-02
archivedRemoved from CRAN
2023-03-31
issues were not corrected in time
1.0.0
2023-03-16
R
R 4.2.0 released · 2022-04-22

Package metadata

First published: 2023-03-16
Total releases: 5 / 3 yrs
License: GPL (>= 3) OSI
Download size: 722 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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