BFF

5.0.0

Bayes Factor Functions

0packages depend

5.1Kdownloads / year

60.2%test coverage

13/13checks pass

Overview

About

Maintained by Rachael ShuddeFirst published 2022-09-137 releasesCRAN page ↗GitHub ↗

Bayes factors represent the ratio of probabilities assigned to data by competing scientific hypotheses. However, one drawback of Bayes factors is their dependence on prior specifications that define null and alternative hypotheses. Additionally, there are challenges in their computation. To address these issues, we define Bayes factor functions (BFFs) directly from common test statistics. BFFs express Bayes factors as a function of the prior densities used to define the alternative hypotheses. These prior densities are centered on standardized effects, which serve as indices for the BFF. Therefore, BFFs offer a summary of evidence in favor of alternative hypotheses that correspond to a range of scientifically interesting effect sizes. Such summaries remove the need for arbitrary thresholds to determine "statistical significance." BFFs are available in closed form and can be easily computed from z, t, chi-squared, and F statistics. They depend on hyperparameters "r" and "tau^2", which determine the shape and scale of the prior distributions defining the alternative hypotheses. Plots of BFFs versus effect size provide informative summaries of hypothesis tests that can be easily aggregated across studies.

Install

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

install.packages("BFF", 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("rshudde/BFF")

Development version from rshudde/BFF. 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-bff

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

# 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-BFF

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

Health

CRAN checks

13OK

Slowest check: 2.0 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.38

60.2%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-30
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 174 wordsVignettesYes · dynamicpkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 87%
Return-value docs: 100%
References docs: 0%

Downloads

5.1K

CRAN downloads in the past year

Rank #8,595 · ~14/day · ~423/mo

Releases R versions

Daily download trend is not available in this view yet.

33730 days

1.3K90 days

5.1K1 year

Compare downloads with other packages →

Also on346 r2u44 autocran

Repository

GitHub ↗ rshudde/bff

3Stars

0Forks

2Open issues

1Open PRs

0Releases

242Commits

3Contributors

242 commits · Last activity 2026-05-20 · 0% stars, 30d

Stars over time

2025-06-07 · 22026-07-07 · 3

Repository practices

Upstream repositoryBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/rshudde/bff on 2026-07-19.

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

9 external dependencies (excludes base and recommended)

Depends (1)

R >= 2.10

Imports (7)

grDevicesggplot2Matrixgslstatsrlang DPQ

LinkingTo (0)

none

Suggests (5)

testthat knitr rmarkdown BSDA vdiffr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (6)

Maintainer (1)

Rachael Shudde

Author, Maintainer

Authors (6)

Rachael Shudde

Author, Maintainer

František Bartoš

Author · added in 4.2.1

Saptati Datta

Author · added in 2.7.0

Riana Guha

Author · added in 2.7.0

Valen Johnson

Author · added in 2.7.0

Sandy Pramanik

Author

Listed in earlier versions (1)

Valen E. Johnson

no longer listed · 1.0.0

Package Timeline

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

5.0.0Latest
2026-05-17 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
4.5.0
2025-11-06 · diff ↗
4.4.2
2025-05-20 · diff ↗
R
R 4.5.0 released · 2025-04-11
4.2.1
2024-07-28 · diff ↗
R
R 4.4.0 released · 2024-04-24
3.0.1
2023-11-04 · diff ↗
2.7.0
2023-10-24 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.0.0
2022-09-13
R
R 4.2.0 released · 2022-04-22

Package metadata

First published: 2022-09-13
Total releases: 7 / 4 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 2.10
Download size: 250 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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