presize

0.3.11

Precision Based Sample Size Calculation

0packages depend

7.9Kdownloads / year

93.0%test coverage

13/13checks pass

Overview

About

Maintained by Alan G. HaynesFirst published 2020-09-027 releasesCRAN page ↗GitHub ↗

Bland (2009) doi:10.1136/bmj.b3985 recommended to base study sizes on the width of the confidence interval rather the power of a statistical test. The goal of 'presize' is to provide functions for such precision based sample size calculations. For a given sample size, the functions will return the precision (width of the confidence interval), and vice versa.

Install

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

install.packages("presize", 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("dcr-unibe-ch/presize")

Development version from dcr-unibe-ch/presize. 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-presize

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-presize

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-presize

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

Health

CRAN checks

13OK

Slowest check: 1.3 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.50

93.0%

Coverage · measured lines

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
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 98%
Return-value docs: 76%
References docs: 67%

Downloads

7.9K

CRAN downloads in the past year

Rank #4,317 · ~22/day · ~659/mo

Releases R versions

Daily download trend is not available in this view yet.

46130 days

2.1K90 days

7.9K1 year

Compare downloads with other packages →

Also on129 r2u28 autocran28 c2d4u

Repository

GitHub ↗ dcr-unibe-ch/presize

21Stars

15Forks

3Open issues

0Open PRs

4Releases

706Commits

15Contributors

sample-size-calculationprecisionconfidence-intervalsshiny-app

License GPL-3.0 · 706 commits · Last activity 2026-05-26 · 0% stars, 30d

Stars over time

2025-07-07 · 182026-07-07 · 21

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/dcr-unibe-ch/presize on 2026-07-26.

Continuous integration (1)

GitHub Actions

Docs source (1)

README.Rmd

Lint, format, editor (1)

RStudio project

Coverage (1)

Codecov

Show all practices

Governance and community (1)

Issue templates

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

Dependencies

Declared dependencies

15 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (2)

kappaSize shiny

LinkingTo (0)

none

Suggests (13)

binom dplyr ggplot2 gt Hmisc knitr magrittr markdown rmarkdown shinydashboard shinytest testthat tidyr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (5)

Maintainer (1)

Alan G. Haynes

Maintainer, Author

Authors (3)

Alan G. Haynes

Maintainer, Author

Armando Lenz

Author

Andreas Limacher

Author

Contributors (2)

Marie Roumet

Contributor · added in 0.3.7

Odile Stalder

Contributor

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
0.3.11Latest
2026-03-11 · current release · diff ↗
0.3.9
2025-11-18 · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
0.3.7
2023-02-27 · diff ↗
0.3.3
2022-08-29 · diff ↗
R
R 4.2.0 released · 2022-04-22
0.3.1
2022-03-03 · diff ↗
R
R 4.1.0 released · 2021-05-18
0.2.3
2021-04-08 · diff ↗
0.1.3
2020-09-02
R
R 4.0.0 released · 2020-04-24

Package metadata

First published: 2020-09-02
Total releases: 7 / 6 yrs
License: GPL-3 OSI
Download size: 358 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Clinical Trial Design, Monitoring, Analysis and Reporting

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