R Observatory: Metrics for cochranSize version 0.1.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

cochranSize

0.1.0

Sample Size Calculation Using Cochran's Formula

0packages depend

73downloads / year

97.6%test coverage

12/12checks pass

Overview

About

Maintained by Yosley CarreroFirst published 2026-08-081 releasesCRAN page ↗GitHub ↗

Provides functions to calculate the minimum required sample size for surveys and studies using Cochran's formula, including the finite population correction. Cochran's formula is a standard method in survey methodology for determining sample size based on a desired margin of error, confidence level, and (optionally) known population size. All parameters (margin of error, confidence level, and expected proportion) are fully adjustable by the user rather than fixed to any convention.

Install

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

install.packages("cochranSize", 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("yosleycarrero2025/cochranSize")

Development version from yosleycarrero2025/cochranSize. Installs pak first if it is not already available.

# 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-cochranSize

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-cochranSize

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

Health

CRAN checks

12OK

Slowest check: 1.7 min · r-oldrel-macos-x86_64

Code health

Yes

Tests · ratio 0.43

97.6%

Coverage · measured lines

100%

Documentation · exports

0

Dependencies · direct

Check history

OK2026-08-09
6 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 203 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo

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

Downloads

73

CRAN downloads in the past year

Rank #24,771 · ~0/day · ~6/mo

cochranSize Releases R versions

Daily download trend is not available in this view yet.

7330 days

7390 days

731 year

Compare downloads with other packages →

Repository

GitHub ↗ yosleycarrero2025/cochransize

0Stars

0Forks

0Open issues

0Open PRs

0Releases

Last activity 2026-08-02

Repository practices

Upstream repositoryBeta

Repository github.com/yosleycarrero2025/cochransize is linked, but repository-practices checks have not run for it yet.

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

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (0)

none

LinkingTo (0)

none

Suggests (3)

testthat knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (1)

Maintainer (1)

Yosley Carrero

Author, Maintainer

Authors (1)

Yosley Carrero

Author, Maintainer

Package Timeline

1 release. R releases are shown for context.

0.1.0Latest
2026-08-08 · current release
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-08-08
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("cochranSize")

Format

Carrero, Y. (2026). cochranSize: Sample Size Calculation Using Cochran's Formula (Version 0.1.0) [Computer software]. https://doi.org/10.32614/CRAN.package.cochranSize

This is what citation() produces when a package has no citation file of its own. If it prints something else, use that.

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 cochranSize version 0.1.0 [Data set]. HJJB, LLC. Data release v2026-08-13. https://doi.org/10.5281/zenodo.21843040

From data release v2026-08-13, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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