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pbkrtest (version 0.4-2)

Parametric bootstrap and Kenward-Roger-based methods for mixed model comparison

Description

Test in linear mixed effects models. Attention is on linear mixed effects models as implemented in the lme4 package. The package implements a parametric bootstrap test. The package implements a Kenward-Roger modification of F-tests.

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Version

Install

install.packages('pbkrtest')

Monthly Downloads

324,699

Version

0.4-2

License

GPL (>= 2)

Maintainer

Søren Højsgaard

Last Published

November 13th, 2014

Functions in pbkrtest (0.4-2)

get_Lb_ddf

Adjusted denomintor degress freedom for linear estimate for linear mixed model.
KenwardRoger

Ftest and degrees of freedom based on Kenward-Roger approximation
PBmodcomp

Model comparison using parametric bootstrap methods.
vcovAdj

Ajusted covariance matrix for linear mixed models according to Kenward and Roger
beets

Yield and sugar percentage in sugar beets from a split plot experiment.
pbkrtest-internal

Internal functions in the pbkrtest package
PBrefdist

Calculate reference distribution using parametric bootstrap
model2restrictionMatrix

Conversion between a model object and a restriction matrix
getKR

Extract (or "get") components from a KRmodcomp object.
budworm

Effect of Insecticide on survivial of tobacco budworms