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Provides reusable functions for aggregated cluster-period data, mixed-effects analysis, and simulation-based power and type I error evaluation in stepped-wedge cluster randomized trials. The design and mixed-effects analysis follow Hussey and Hughes (2007) <doi:10.1016/j.cct.2006.05.007>. Intraclass correlations for binary outcomes are converted to logistic-normal random-intercept standard deviations following Eldridge, Ukoumunne and Carlin (2009) <doi:10.1111/j.1751-5823.2009.00092.x>. Monte Carlo uncertainty in estimated power is summarized using the exact binomial interval of Clopper and Pearson (1934) <doi:10.1093/biomet/26.4.404>. The simulation engine supports sequence-specific baseline risks, cluster random effects, direct intraclass-correlation specification, Monte Carlo uncertainty intervals, and model-fitting diagnostics. Applied physician and specialty helpers are retained for backward compatibility and for an example health-services workflow.
| Version: | 0.1.3 |
| Imports: | lme4 |
| Suggests: | testthat (≥ 3.0.0), knitr, rmarkdown |
| Published: | 2026-07-13 |
| DOI: | 10.32614/CRAN.package.stepwedgepower |
| Author: | Lin (Amanda) Li [aut, cre], Florin Vaida [aut] (degree: PhD) |
| Maintainer: | Lin (Amanda) Li <amandali14124277 at gmail.com> |
| License: | MIT + file LICENSE |
| NeedsCompilation: | no |
| Materials: | README, NEWS |
| CRAN checks: | stepwedgepower results |
| Reference manual: | stepwedgepower.html , stepwedgepower.pdf |
| Package source: | stepwedgepower_0.1.3.tar.gz |
| Windows binaries: | r-devel: stepwedgepower_0.1.0.zip, r-release: stepwedgepower_0.1.3.zip, r-oldrel: stepwedgepower_0.1.3.zip |
| macOS binaries: | r-release (arm64): stepwedgepower_0.1.3.tgz, r-oldrel (arm64): stepwedgepower_0.1.3.tgz, r-release (x86_64): stepwedgepower_0.1.3.tgz, r-oldrel (x86_64): stepwedgepower_0.1.3.tgz |
| Old sources: | stepwedgepower archive |
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These binaries (installable software) and packages are in development.
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