influence.ME: Tools for Detecting Influential Data in Mixed Effects Models

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Provides a collection of tools for detecting influential cases in generalized mixed effects models. It analyses models that were estimated using 'lme4'. The basic rationale behind identifying influential data is that when iteratively single units are omitted from the data, models based on these data should not produce substantially different estimates. To standardize the assessment of how influential a (single group of) observation(s) is, several measures of influence are common practice, such as DFBETAS and Cook's Distance. In addition, we provide a measure of percentage change of the fixed point estimates and a simple procedure to detect changing levels of significance.

Author
Rense Nieuwenhuis, Ben Pelzer, Manfred te Grotenhuis
Date of publication
2016-10-31 10:07:54
Maintainer
Rense Nieuwenhuis <rense.nieuwenhuis@sofi.su.se>
License
GPL-3
Version
0.9-8
URLs

View on CRAN

Man pages

cooks.distance.estex
Compute the Cook's distance measure of influential data on...
dfbetas.estex
Compute the DFBETAS measure of influential data
exclude.influence
Exclude the influence of a grouped set of observations in...
grouping.levels
Returns the levels of a grouping factor in a mixed effects...
influence.ME-package
Influence.ME: Tools for detecting influential data in mixed...
influence.mer
influence returns mixed model estimates, iteratively...
pchange
Compute the percentage change, as measure of influential data
plot.estex
Dotplot visualization of measures of influence
school23
Math test performance in 23 schools
se.fixef
Standard errors of fixed estimates
sigtest
Test for changes in the level of statistical significance...

Files in this package

influence.ME
influence.ME/inst
influence.ME/inst/CITATION
influence.ME/NAMESPACE
influence.ME/data
influence.ME/data/school23.rda
influence.ME/R
influence.ME/R/exclude.influence.R
influence.ME/R/plot.estex.R
influence.ME/R/cooks.distance.extex.r
influence.ME/R/sigtest.R
influence.ME/R/dfbetas.estex.r
influence.ME/R/pchange.R
influence.ME/R/grouping.levels.R
influence.ME/R/influence.R
influence.ME/R/se.fixef.R
influence.ME/MD5
influence.ME/DESCRIPTION
influence.ME/man
influence.ME/man/sigtest.Rd
influence.ME/man/plot.estex.Rd
influence.ME/man/influence.ME-package.Rd
influence.ME/man/se.fixef.Rd
influence.ME/man/grouping.levels.Rd
influence.ME/man/dfbetas.estex.Rd
influence.ME/man/influence.mer.Rd
influence.ME/man/exclude.influence.Rd
influence.ME/man/school23.Rd
influence.ME/man/pchange.Rd
influence.ME/man/cooks.distance.estex.Rd