longpower: Sample Size Calculations for Longitudinal Data

Compute power and sample size for linear models of longitudinal data. Supported models include mixed-effects models and models fit by generalized least squares and generalized estimating equations. The package is described in Iddi and Donohue (2022) <doi:10.32614/RJ-2022-022>. Relevant formulas are derived by Liu and Liang (1997) <doi:10.2307/2533554>, Diggle et al (2002) <ISBN:9780199676750>, and Lu, Luo, and Chen (2008) <doi:10.2202/1557-4679.1098>.

Version: 1.0.25
Depends: R (≥ 3.0.0), lme4 (≥ 1.0), nlme
Imports: methods
Suggests: gee, testthat, knitr, rmarkdown
Published: 2024-01-24
DOI: 10.32614/CRAN.package.longpower
Author: Michael C. Donohue [aut, cre], Steve D. Edland [ctb], Nan Hu [ctb]
Maintainer: Michael C. Donohue <mdonohue at usc.edu>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
URL: https://github.com/mcdonohue/longpower
NeedsCompilation: no
Citation: longpower citation info
In views: ClinicalTrials, MixedModels
CRAN checks: longpower results


Reference manual: longpower.pdf
Vignettes: Power for linear models of longitudinal data with applications to Alzheimer's Disease Phase II study design


Package source: longpower_1.0.25.tar.gz
Windows binaries: r-devel: longpower_1.0.25.zip, r-release: longpower_1.0.25.zip, r-oldrel: longpower_1.0.25.zip
macOS binaries: r-release (arm64): longpower_1.0.25.tgz, r-oldrel (arm64): longpower_1.0.25.tgz, r-release (x86_64): longpower_1.0.25.tgz, r-oldrel (x86_64): longpower_1.0.25.tgz
Old sources: longpower archive

Reverse dependencies:

Reverse imports: PSS.Health


Please use the canonical form https://CRAN.R-project.org/package=longpower to link to this page.