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LPower: Calculates Power, Sample Size, or Detectable Effect for Longitudinal Analyses

Computes power, or sample size or the detectable difference for a repeated measures model with attrition. It requires the variance covariance matrix of the observations but can compute this matrix for several common random effects models. See Diggle, P, Liang, KY and Zeger, SL (1994, ISBN:9780198522843).

Version: 0.1.1
Imports: nlme, MASS, stats
Published: 2019-12-11
DOI: 10.32614/CRAN.package.LPower
Author: David A. Schoenfeld
Maintainer: David A. Schoenfeld <Dschoenfeld at mgh.harvard.edu>
License: Unlimited
NeedsCompilation: no
CRAN checks: LPower results

Documentation:

Reference manual: LPower.pdf

Downloads:

Package source: LPower_0.1.1.tar.gz
Windows binaries: r-devel: LPower_0.1.1.zip, r-release: LPower_0.1.1.zip, r-oldrel: LPower_0.1.1.zip
macOS binaries: r-release (arm64): LPower_0.1.1.tgz, r-oldrel (arm64): LPower_0.1.1.tgz, r-release (x86_64): LPower_0.1.1.tgz, r-oldrel (x86_64): LPower_0.1.1.tgz
Old sources: LPower archive

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.