R Observatory: Metrics for Exact version 3.3

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

Exact

3.3Package record

Unconditional Exact Test

1packages dependsuggested by 4

517.4Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Peter CalhounCRAN page ↗

Performs unconditional exact tests and power calculations for 2x2 contingency tables. For comparing two independent proportions, performs Barnard's test (1945) doi:10.1038/156177a0 using the original CSM test (Barnard, 1947 doi:10.1093/biomet/34.1-2.123), using Fisher's p-value referred to as Boschloo's test (1970) doi:10.1111/j.1467-9574.1970.tb00104.x, or using a Z-statistic (Suissa and Shuster, 1985, doi:10.2307/2981892). For comparing two binary proportions, performs unconditional exact test using McNemar's Z-statistic (Berger and Sidik, 2003, doi:10.1191/0962280203sm312ra), using McNemar's conditional p-value, using McNemar's Z-statistic with continuity correction, or using CSM test. Calculates confidence intervals for the difference in proportion. This package interacts with pre-computed data available through the ExactData R package, which is available in a 'drat' repository. Install the ExactData R package from GitHub at https://pcalhoun1.github.io/drat/. The ExactData R package is approximately 85 MB.

Changes in 3.3

Fixed an error where the p-value was sometimes incorrect for imbalanced designs. Only occurred when the p-value would be large, but exact test gave a much higher p-value. Thanks to Andrea Smith for pointing out the issue

From inst/NEWS.Rd in the release

Install

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

install.packages("Exact", 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-exact

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-Exact

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-Exact

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: 1.0 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK12 OK2026-04-25
NOTE11 OK, 3 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 3.3

READMENoVignettesNoNEWSYes · mentions 3.3Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 7includes a package overview page
Examples that run: 100%6 run in a plain check
Exported functions with examples: 100%
Documented parameters: 98%
Return-value docs: 100%
Help pages citing references: 86%

How these are measured

Downloads

517.4K

CRAN downloads in the past year

Rank #559 · ~1.4K/day · ~43.1K/mo

Releases R versions

Daily download trend is not available in this view yet.

45.7K30 days

120.3K90 days

517.4K1 year

Compare downloads with other packages →

Also on7.1K r2u8 autocran65.4K conda_forge401 c2d4u

How downloads are counted

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

Installing Exact adds 1 package (1 with compiled code, 492 KB of source tarballs). Heaviest: rootSolve 492 KB.

Depends (1)

R >= 3.5.0

Imports (4)

graphicsstatsutilsrootSolve

LinkingTo (0)

none

Suggests (1)

ExactData

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

114indirect

Imports 1

Suggested by 4

Depends, Imports or LinkingTo, most downloaded first

DescTools

Suggests, most downloaded first

exact2x2 kyotil bbssr twoCoprimary

How these are counted

Code & Tests

People & History

People (1)

Peter Calhoun

Author, Maintainer since 1.0 (2012)

Releases (14)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
3.3Latest
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2024-07-21 · current release · diff ↗
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R 4.4.0 released · 2024-04-24
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R 4.3.0 released · 2023-04-21
3.2
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2022-09-26 · diff ↗
R
R 4.2.0 released · 2022-04-22
3.1
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2021-11-26 · diff ↗
3.0
record
2021-09-02 · diff ↗ ·
added 3 exports
paired.exact.test, paired.reject.region, power.paired.test
R
R 4.1.0 released · 2021-05-18
2.1
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2020-10-03 · diff ↗
R
R 4.0.0 released · 2020-04-24
2.0
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2019-10-14 · diff ↗ ·
added 1 export
exact.reject.region
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21

Show 14 earlier eventsHide 14 earlier events

1.7
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2016-10-22 · diff ↗
R
R 3.3.0 released · 2016-05-03
1.6
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2015-05-26 · diff ↗
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R 3.2.0 released · 2015-04-16
1.5
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2015-03-28 · diff ↗
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R 3.1.0 released · 2014-04-10
1.4
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2013-07-22 · diff ↗
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R 3.0.0 released · 2013-04-03
1.3
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2013-02-23 · diff ↗
1.2
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2013-02-23 · diff ↗
1.1
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2012-08-19 · diff ↗
R
R 2.15.0 released · 2012-03-30
1.0
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2012-03-22
R
R 2.14.0 released · 2011-10-31

Package metadata

First published: 2012-03-22
Total releases: 14 / 14 yrs
License: GPL-2 OSI
Additional repositories: pcalhoun1.github.io
Minimum R: ≥ 3.5.0
Download size: 44 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("Exact")

Format

Calhoun, P. (2024). Exact: Unconditional Exact Test (Version 3.3) [Computer software]. https://doi.org/10.32614/CRAN.package.Exact

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 Exact version 3.3 [Data set]. HJJB, LLC. Data release v2026-10-18. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-18, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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