SampleSizeR: Sample Size Calculations for Epidemiological, Clinical, and Diagnostic Studies

Provides comprehensive methods for sample size determination for epidemiological studies, clinical trials, diagnostic accuracy studies, and diagnostic agreement studies. The package supports prevalence surveys, cluster prevalence studies, unmatched case-control studies, cohort studies, superiority, non-inferiority, and equivalence clinical trials, diagnostic sensitivity, diagnostic specificity, receiver operating characteristic (ROC) area under the curve (AUC), and diagnostic agreement studies. Functions include optional adjustments for finite population correction, design effect, unequal allocation, anticipated response rate, and dropout. Results are returned as standardized 'SampleSizeR' objects with print, summary, plot, and data frame methods.

Version:	0.1.0
Depends:	R (≥ 4.2.0)
Imports:	stats, ggplot2, rlang
Suggests:	testthat (≥ 3.0.0), knitr, rmarkdown, covr
Published:	2026-08-05
DOI:	10.32614/CRAN.package.SampleSizeR (may not be active yet)
Author:	Vinodh Kumar Obli Rajendran [aut, cre], Keerthi Aaradhana [aut]
Maintainer:	Vinodh Kumar Obli Rajendran <vinodhkumar.rajendran at gmail.com>
BugReports:	https://github.com/vinodhpmd/SampleSizeR/issues
License:	GPL-3
URL:	https://github.com/vinodhpmd/SampleSizeR
NeedsCompilation:	no
Language:	en-US
Materials:	README, NEWS
CRAN checks:	SampleSizeR results

Documentation:

Reference manual:	SampleSizeR.html , SampleSizeR.pdf
Vignettes:	Getting Started with SampleSizeR (source, R code)

Downloads:

Package source:	SampleSizeR_0.1.0.tar.gz
Windows binaries:	r-devel: not available, r-release: not available, r-oldrel: SampleSizeR_0.1.0.zip
macOS binaries:	r-release (arm64): SampleSizeR_0.1.0.tgz, r-oldrel (arm64): SampleSizeR_0.1.0.tgz, r-release (x86_64): SampleSizeR_0.1.0.tgz, r-oldrel (x86_64): SampleSizeR_0.1.0.tgz

Linking:

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