jfa

0.7.4

Statistical Methods for Auditing

0packages depend

5.1Kdownloads / year

63.7%test coverage

10/13checks pass

Overview

About

Maintained by Koen DerksFirst published 2020-01-0826 releasesCRAN page ↗GitHub ↗

Provides statistical methods for auditing as implemented in JASP for Audit (Derks et al., 2021 doi:10.21105/joss.02733). First, the package makes it easy for an auditor to plan a statistical sample, select the sample from the population, and evaluate the misstatement in the sample compliant with international auditing standards. Second, the package provides statistical methods for auditing data, including tests of digit distributions and repeated values. Finally, the package includes methods for auditing algorithms on the aspect of fairness and bias. Next to classical statistical methodology, the package implements Bayesian equivalents of these methods whose statistical underpinnings are described in Derks et al. (2021) doi:10.1111/ijau.12240, Derks et al. (2024) doi:10.2308/AJPT-2021-086, Derks et al. (2022) doi:10.31234/osf.io/8nf3e Derks et al. (2024) doi:10.31234/osf.io/tgq5z, and Derks et al. (2025) doi:10.31234/osf.io/b8tu2.

Install

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

install.packages("jfa", 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("koenderks/jfa")

Development version from koenderks/jfa. 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-jfa

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-jfa

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-jfa

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

Health

CRAN checks

1ERROR2NOTE10OK

Failing flavors

NOTE r-devel-linux-x86_64-fedora-clang
NOTE r-devel-linux-x86_64-fedora-gcc
ERROR r-devel-windows-x86_64

Slowest check: 17.8 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.68

63.7%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

ERROR2026-07-27
10 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-06-09
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-06-08
10 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-04-22
9 OK · 5 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
8 OK · 5 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE

Show 1 earlier snapshots

NOTE2026-03-10
9 OK · 5 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 223 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 96%
Return-value docs: 100%
References docs: 74%

Downloads

5.1K

CRAN downloads in the past year

Rank #9,762 · ~14/day · ~426/mo

Releases R versions

Daily download trend is not available in this view yet.

37030 days

1.1K90 days

5.1K1 year

Compare downloads with other packages →

Also on462 r2u36 autocran4K conda_forge

Repository

GitHub ↗ koenderks/jfa

8Stars

6Forks

0Open issues

0Open PRs

26Releases

1,485Commits

6Contributors

auditaudit-samplingr-packagebayesianstatisticsrstatsalgorithm-auditingdata-auditing

License GPL-3.0 · 1,485 commits · Last activity 2025-12-21

Stars over time

2023-05-29 · 72026-07-07 · 8

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/koenderks/jfa on 2026-07-26.

Continuous integration (1)

GitHub Actions

CRAN release process (1)

cran-comments.md

Research and citation (1)

CITATION.cff

Lint, format, editor (1)

lintr

Show all practices

Governance and community (1)

Issue templates

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

Dependencies

Declared dependencies

23 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (10)

bde extraDistr ggplot2methodsRcpp RcppParallel rstan (>= 2.26.0)rstantoolsstatstruncdist

LinkingTo (6)

BH Rcpp RcppEigen RcppParallel rstan StanHeaders (>= 2.26.0)

Suggests (9)

benford.analysis BenfordTests BeyondBenford fairness knitr MUS rmarkdown samplingbook testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Datasets

People & History

People (3)

Maintainer (1)

Koen Derks

Author, Maintainer

Authors (1)

Koen Derks

Author, Maintainer

Contributors (2)

Lotte Mensink

Contributor · added in 0.7.3

Federica Picogna

Contributor · added in 0.7.3

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
0.7.4Latest
2025-11-15 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
0.7.3
2025-03-10 · diff ↗
0.7.2
2024-08-23 · diff ↗
R
R 4.4.0 released · 2024-04-24
0.7.1
2024-03-07 · diff ↗
0.7.0
2023-10-04 · diff ↗
0.6.7
2023-07-16 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.6.6
2023-04-08 · diff ↗
0.6.5
2023-03-21 · diff ↗
0.6.4
2022-06-16 · diff ↗
R
R 4.2.0 released · 2022-04-22
0.6.3
2022-02-21 · diff ↗
0.6.2
2022-01-23 · diff ↗

Show 18 earlier events

0.6.1
2021-11-18 · diff ↗
0.6.0
2021-09-22 · diff ↗
0.5.7
2021-08-12 · diff ↗
0.5.6
2021-07-06 · diff ↗
0.5.5
2021-07-01 · diff ↗
0.5.4
2021-06-03 · diff ↗
R
R 4.1.0 released · 2021-05-18
0.5.3
2021-05-02 · diff ↗
0.5.2
2021-04-02 · diff ↗
0.5.1
2021-03-02 · diff ↗
0.5.0
2021-01-04 · diff ↗
0.4.0
2020-10-30 · diff ↗
0.3.1
2020-10-12 · diff ↗
0.3.0
2020-09-15 · diff ↗
0.2.0
2020-08-05 · diff ↗
R
R 4.0.0 released · 2020-04-24
0.1.0
2020-01-08
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2020-01-08
Total releases: 26 / 6 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 3.5.0
Bundled data: 76 KB / 9 files
Download size: 734 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Report a problem with this page →