longpower: Sample Size Calculations for Longitudinal Data
Version 1.0-16

The longpower package contains functions for computing power and sample size for linear models of longitudinal data based on the formula due to Liu and Liang (1997) and Diggle et al (2002). Either formula is expressed in terms of marginal model or Generalized Estimating Equations (GEE) parameters. This package contains functions which translate pilot mixed effect model parameters (e.g. random intercept and/or slope) into marginal model parameters so that the formulas of Diggle et al or Liu and Liang formula can be applied to produce sample size calculations for two sample longitudinal designs assuming known variance.

Browse man pages Browse package API and functions Browse package files

AuthorMichael C. Donohue, Anthony C. Gamst, Steven D. Edland
Date of publication2016-07-25 20:36:27
MaintainerMichael C. Donohue <mdonohue@usc.edu>
LicenseGPL (>= 2)
Version1.0-16
URL https://bitbucket.org/mdonohue/longpower
Package repositoryView on CRAN
InstallationInstall the latest version of this package by entering the following in R:
install.packages("longpower")

Man pages

diggle.linear.power: Sample size calculations for difference in slopes between two...
edland.linear.power: Linear mixed model sample size calculations.
liu.liang.linear.power: Linear mixed model sample size calculations from Liu & Liang...
lmmpower: Sample size calculations for linear mixed models of rate of...
longpower-package: Sample size calculations for longitudinal data
power.longtest: Constructor function for class '"power.longtest"'
power.mmrm: Linear mixed model sample size calculations.
power.mmrm.ar1: Linear mixed model sample size calculations.
print.power.longtest: Print method for longitudinal data power calculation object

Functions

diggle.linear.power Man page Source code
edland.linear.power Man page Source code
liu.liang.linear.power Man page Source code
lmmpower Man page Source code
lmmpower,ANY-method Man page
lmmpower,merMod-method Man page
lmmpower-methods Man page
lmmpower.default Man page Source code
lmmpower.gee Man page Source code
lmmpower.lme Man page Source code
lmmpower.numeric Man page
longpower-package Man page
power.longtest Man page Source code
power.mmrm Man page Source code
power.mmrm.ar1 Man page Source code
print.power.longtest Man page Source code

Files

inst
inst/CITATION
inst/doc
inst/doc/longpower.R
inst/doc/longpower.Rnw
inst/doc/longpower.pdf
tests
tests/testthat.R
tests/testthat
tests/testthat/tests.R
NAMESPACE
R
R/longpower-package.R
R/power_mmrm.R
R/diggle.linear.power.R
R/edland.linear.power.R
R/liu.liang.linear.power.R
R/lmmpower.R
R/print.power.longtest.R
vignettes
vignettes/longpower.bib
vignettes/longpower.Rnw
MD5
build
build/vignette.rds
DESCRIPTION
man
man/diggle.linear.power.Rd
man/longpower-package.Rd
man/lmmpower.Rd
man/edland.linear.power.Rd
man/liu.liang.linear.power.Rd
man/power.mmrm.Rd
man/print.power.longtest.Rd
man/power.mmrm.ar1.Rd
man/power.longtest.Rd
longpower documentation built on May 19, 2017, 11:07 a.m.