R Observatory: Metrics for exact2x2 version 1.7.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

exact2x2

1.7.0Package record

Exact Tests and Confidence Intervals for 2x2 Tables

3packages dependsuggested by 4

37.1Kdownloads / year

20.0%test coverage

13/13flavors OK

Overview

About

Maintained by Michael P. FayCRAN page ↗

Calculates conditional exact tests (Fisher's exact test, Blaker's exact test, or exact McNemar's test) and unconditional exact tests (including score-based tests on differences in proportions, ratios of proportions, and odds ratios, and Boshcloo's test) with appropriate matching confidence intervals, and provides power and sample size calculations. Gives melded confidence intervals for the binomial case (Fay, et al, 2015, DOI:10.1111/biom.12231). Gives boundary-optimized rejection region test (Gabriel, et al, 2018, DOI:10.1002/sim.7579), an unconditional exact test for the situation where the controls are all expected to fail. Gives confidence intervals compatible with exact McNemar's or sign tests (Fay and Lumbard, 2021, DOI:10.1002/sim.8829). For review of these kinds of exact tests see Fay and Hunsberger (2021, DOI:10.1214/21-SS131).

Install

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

install.packages("exact2x2", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

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-exact2x2

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-exact2x2

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-exact2x2

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: 2.7 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK13 OK2026-06-09
ERROR12 OK, 1 ERROR2026-06-08
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.7.0

READMENoVignettesYes · 5 · dynamicNEWSNoCitation fileYes · cites a publicationWebsitenot declared in DESCRIPTION

Help pages: 22 (9 internal)includes a package overview page
Examples that run: 94%15 run in a plain check · 1 never run
Exported functions with examples: 76%
Documented parameters: 97%
Return-value docs: 95%
Help pages citing references: 100%

Vignettes (5)

How these are measured

Downloads

37.1K

CRAN downloads in the past year

Rank #2,402 · ~102/day · ~3.1K/mo

Releases R versions

Daily download trend is not available in this view yet.

2.8K30 days

6.8K90 days

37.1K1 year

Compare downloads with other packages →

Also on125 r2u8 autocran2.1K conda_forge

How downloads are counted

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Installing exact2x2 adds 26 packages (11 with compiled code, 6.7 MB of source tarballs). Heaviest: fs 1.4 MB, jsonlite 1.0 MB, testthat 814 KB.

Depends (4)

R >= 2.10statsexactci ssanv

Imports (0)

none

LinkingTo (0)

none

Suggests (5)

testthat Exact ggplot2gridgridExtra

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

3direct

1indirect

Depends 2 · Imports 1

Suggested by 4

Depends, Imports or LinkingTo, most downloaded first

asht pCalibrate vvdoctor

Suggests, most downloaded first

jmv exactci bpcp bbssr

How these are counted

Code & Tests

People & History

People (5)

Michael P. Fay

Author, Maintainer · added in 1.2-0.0

Erin Gabriel

Contributor · added in 1.6.2

Sally A. Hunsberger

Contributor · added in 1.5.2

Keith Lumbard

Contributor · added in 1.6.4.1

Martha Nason

Contributor · added in 1.6.2

Maintainer since 0.9-1 (2009)

Listed in earlier versions (3)

Show 3 peopleHide 3 people

M.P. Fay

no longer listed · 0.9-1 to 1.1-1.0

Fay

no longer listed · 1.7.0

Hunsberger

no longer listed · 1.7.0

Releases (21)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
1.7.0Latest
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2025-08-20 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
1.6.9
record
2024-01-25 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.6.8
record
2023-02-09 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.6.6
record
2021-12-09 · diff ↗
R
R 4.1.0 released · 2021-05-18
1.6.5
record
2020-08-03 · diff ↗
1.6.4.1
record
2020-06-30 · diff ↗ ·
added 3 exports
powerPaired2x2, powerBorr, mcnemarExactDP
R
R 4.0.0 released · 2020-04-24
1.6.3.1
record
2019-10-16 · diff ↗
R
R 3.6.0 released · 2019-04-26
1.6.3
record
2018-07-27 · diff ↗

Show 26 earlier eventsHide 26 earlier events

R
R 3.5.0 released · 2018-04-23
1.6.2
record
2018-02-26 · diff ↗ ·
added 5 exports
borrControl, borrTest, borrOrdering, borrPvals, borrPreCalc
R
R 3.4.0 released · 2017-04-21
1.5.2
record
2017-02-16 · diff ↗ ·
added 27 exports
uncondExact2x2, uncondExact2x2Pvals, fisherCalcMidp, boschloo, unirootGrid, power2gridRatio, power2gridDifference, calcTall, constrMLE.difference, constrMLE.ratio, constrMLE.oddsratio, getDeltaGrid, getPDQD, getPI, getPrange, pickTstat, power2grid, ucControl, createR, fillsquare, getColor, plotRankMat, plotT, orderMat, Power2x2, SS2x2, uncondPower2x2
R
R 3.3.0 released · 2016-05-03
R
R 3.2.0 released · 2015-04-16
1.4.1
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2015-02-26 · diff ↗
1.4.0
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2014-08-25 · diff ↗
1.3.0
record
2014-04-30 · diff ↗ ·
added 3 exports
power2x2, ss2x2, binomMeld.test
R
R 3.1.0 released · 2014-04-10
1.2-0.0
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2014-03-05 · diff ↗
R
R 3.0.0 released · 2013-04-03
R
R 2.15.0 released · 2012-03-30
R
R 2.14.0 released · 2011-10-31
1.1-1.0
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2011-04-24 · diff ↗
R
R 2.13.0 released · 2011-04-13
R
R 2.12.0 released · 2010-10-15
1.1-0.0
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2010-10-06 · diff ↗
1.0-1.1
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2010-07-30 · diff ↗
1.0-1
record
2010-05-27 · diff ↗
R
R 2.11.0 released · 2010-04-22
1.0-0
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2010-01-27 · diff ↗ ·
added 2 exports
mcnemar.exact, mcnemar.exact.calc
R
R 2.10.0 released · 2009-10-26
0.9-3.1
record
2009-08-14 · diff ↗
0.9-1
record
2009-07-22
R
R 2.9.0 released · 2009-04-17

Package metadata

First published: 2009-07-22
Total releases: 21 / 17 yrs
License: GPL-3 OSI
Minimum R: ≥ 2.10
Download size: 844 KB

Cite

Cite this package

Run in R for the authors' entry:

citation("exact2x2")

The package provides a citation file, so citation() returns the authors' own entry.

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 exact2x2 version 1.7.0 [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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