# Parametric Bootstrap and Kenward Roger Based Methods for Mixed Model Comparison

## Documentation for package ‘pbkrtest’ version 0.4-6

- DESCRIPTION file.
- User guides, package vignettes and other documentation.

## Help Pages

beets | Yield and sugar percentage in sugar beets from a split plot experiment.
budworm | Effect of Insecticide on survivial of tobacco budworms
getKR | Extract (or "get") components from a 'KRmodcomp' object.
getLRT | Model comparison using parametric bootstrap methods.
getLRT.lm | Model comparison using parametric bootstrap methods.
getLRT.mer | Model comparison using parametric bootstrap methods.
getLRT.merMod | Model comparison using parametric bootstrap methods.
get_Lb_ddf | Adjusted denomintor degress freedom for linear estimate for linear mixed model.
get_Lb_ddf.lmerMod | Adjusted denomintor degress freedom for linear estimate for linear mixed model.
get_SigmaG | Ajusted covariance matrix for linear mixed models according to Kenward and Roger
get_SigmaG.lmerMod | Ajusted covariance matrix for linear mixed models according to Kenward and Roger
get_SigmaG.mer | Ajusted covariance matrix for linear mixed models according to Kenward and Roger
KRmodcomp | Ftest and degrees of freedom based on Kenward-Roger approximation
KRmodcomp.lmerMod | Ftest and degrees of freedom based on Kenward-Roger approximation
KRmodcomp.mer | Ftest and degrees of freedom based on Kenward-Roger approximation
KRmodcomp_internal | Ftest and degrees of freedom based on Kenward-Roger approximation
Lb_ddf | Adjusted denomintor degress freedom for linear estimate for linear mixed model.
LMM_Sigma_G | Ajusted covariance matrix for linear mixed models according to Kenward and Roger
model2restrictionMatrix | Conversion between a model object and a restriction matrix
model2restrictionMatrix.lm | Conversion between a model object and a restriction matrix
model2restrictionMatrix.mer | Conversion between a model object and a restriction matrix
model2restrictionMatrix.merMod | Conversion between a model object and a restriction matrix
PBmodcomp | Model comparison using parametric bootstrap methods.
PBmodcomp.lm | Model comparison using parametric bootstrap methods.
PBmodcomp.mer | Model comparison using parametric bootstrap methods.
PBmodcomp.merMod | Model comparison using parametric bootstrap methods.
PBrefdist | Calculate reference distribution using parametric bootstrap
PBrefdist.lm | Calculate reference distribution using parametric bootstrap
PBrefdist.mer | Calculate reference distribution using parametric bootstrap
PBrefdist.merMod | Calculate reference distribution using parametric bootstrap
plot.XXmodcomp | Model comparison using parametric bootstrap methods.
restrictionMatrix2model | Conversion between a model object and a restriction matrix
restrictionMatrix2model.lm | Conversion between a model object and a restriction matrix
restrictionMatrix2model.mer | Conversion between a model object and a restriction matrix
restrictionMatrix2model.merMod | Conversion between a model object and a restriction matrix
vcovAdj | Ajusted covariance matrix for linear mixed models according to Kenward and Roger
vcovAdj.lmerMod | Ajusted covariance matrix for linear mixed models according to Kenward and Roger
vcovAdj.mer | Ajusted covariance matrix for linear mixed models according to Kenward and Roger
vcovAdj0 | Ajusted covariance matrix for linear mixed models according to Kenward and Roger
vcovAdj2 | Ajusted covariance matrix for linear mixed models according to Kenward and Roger
vcovAdj_internal | Ajusted covariance matrix for linear mixed models according to Kenward and Roger