Functions for sample size estimation and simulation in clinical trials. Includes methods for selecting the best group using the Indifference-zone approach, as well as designs for non-inferiority, equivalence, and negative binomial models. For the sample size calculation for non-inferiority of vaccines, the approach is based on Fleming, Powers, and Huang (2021) <doi:10.1177/1740774520988244>. The Indifference-zone approach is based on Sobel and Huyett (1957) <doi:10.1002/j.1538-7305.1957.tb02411.x> and Bechhofer, Santner, and Goldsman (1995, ISBN:978-0-471-57427-9).
Version: 1.0.0 Depends: R (≥ 4.1) Imports: stats, stringr, broom, MASS, gsDesign, mvtnorm, tibble Suggests: knitr, rmarkdown, spelling, testthat (≥ 3.0.0) Published: 2025-06-12 DOI: 10.32614/CRAN.package.ssutil Author: John J. Aponte [aut, cre], Chris Gast [ctb] Maintainer: John J. Aponte <john.j.aponte at gmail.com> BugReports: https://github.com/johnaponte/ssutil/issues License: AGPL (≥ 3) URL: https://johnaponte.github.io/ssutil/, https://github.com/johnaponte/ssutil NeedsCompilation: no Language: en-US Materials: README NEWS CRAN checks: ssutil results Documentation: Downloads: Linking:Please use the canonical form https://CRAN.R-project.org/package=ssutil to link to this page.
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