Man pages for lme4/lme4
Linear Mixed-Effects Models using 'Eigen' and S4

allFitRefit a fitted model with all available optimizers
ArabidopsisArabidopsis clipping/fertilization data
bootMerModel-based (Semi-)Parametric Bootstrap for Mixed Models
cakeBreakage Angle of Chocolate Cakes
cbppContagious bovine pleuropneumonia
checkConvExtended Convergence Checking
confint.merModCompute Confidence Intervals for Parameters of a [ng]lmer Fit
convergenceAssessing Convergence for Fitted Models
devcompExtract the deviance component list
devfun2Deviance Function in Terms of Standard...
drop1.merModDrop all possible single fixed-effect terms from a mixed...
dummyDummy variables (experimental)
DyestuffYield of dyestuff by batch
factorizeAttempt to convert grouping variables to factors
fixefExtract fixed-effects estimates
fortifyadd information to data based on a fitted model
getMEExtract or Get Generalized Components from a Fitted Mixed...
GHruleUnivariate Gauss-Hermite quadrature rule
glmerFitting Generalized Linear Mixed-Effects Models
glmerLaplaceHandleHandle for 'glmerLaplace'
glmer.nbFitting Negative Binomial GLMMs
glmFamilyGenerator object for the 'glmFamily' class
glmFamily-classClass '"glmFamily"' - a reference class for 'family'
golden-classClass '"golden"' and Generator for Golden Search Optimizer...
GQdkSparse Gaussian / Gauss-Hermite Quadrature grid
grouseticksData on red grouse ticks from Elston et al. 2001
hatvalues.merModDiagonal elements of the hat matrix
influence.merModInfluence Diagnostics for Mixed-Effects Models
InstEvalUniversity Lecture/Instructor Evaluations by Students at ETH
isREMLCheck characteristics of models
isSingularTest Fitted Model for (Near) Singularity
lme4-packageLinear, generalized linear, and nonlinear mixed models
lme4_testlevelDetect testing level for lme4 examples and tests
lmerFit Linear Mixed-Effects Models
lmerControlControl of Mixed Model Fitting
lmListFit List of lm or glm Objects with a Common Model
lmList4-classClass "lmList4" of 'lm' Objects on Common Model
lmRespGenerator objects for the response classes
lmResp-classReference Classes for Response Modules,...
merMod-classClass "merMod" of Fitted Mixed-Effect Models
merPredDGenerator object for the 'merPredD' class
merPredD-classClass '"merPredD"' - a Dense Predictor Reference Class
mkMerModCreate a 'merMod' Object
mkNewReTrmsMake new random effect terms for prediction
mkRespModCreate an lmerResp, glmResp or nlsResp instance
mkSimulationTemplateMake templates suitable for guiding mixed model simulations
mkVarCorrMake Variance and Correlation Matrices from 'theta'
modularModular Functions for Mixed Model Fits
namedListSelf-naming list function
Nelder_MeadNelder-Mead Optimization of Parameters, Possibly (Box)...
NelderMead-classClass '"NelderMead"' of Nelder-Mead optimizers and its...
ngrpsNumber of Levels of a Factor or a "merMod" Model
nlformulaManipulate a Nonlinear Model Formula
nlmerFitting Nonlinear Mixed-Effects Models
nloptwrapWrappers for additional optimizers
PastesPaste strength by batch and cask
PenicillinVariation in penicillin testing
plot.merModDiagnostic Plots for 'merMod' Fits
plots.thprMixed-Effects Profile Plots (Regular / Density / Pairs)
predict.merModPredictions from a model at new data values
profile-methodsProfile method for merMod objects
pvaluesGetting p-values for fitted models
ranefExtract the modes of the random effects
refitRefit a (merMod) Model with a Different Response
refitMLRefit a Model by Maximum Likelihood Criterion
reformulas_imports(deprecated) formula-processing functions
rePCAPCA of random-effects covariance matrix
rePosGenerator object for the rePos (random-effects positions)...
rePos-classClass '"rePos"'
residuals.merModresiduals of merMod objects
sigmaExtract Residual Standard Deviation 'Sigma'
simulate.formulaA 'simulate' Method for 'formula' objects that dispatches...
simulate.merModSimulate Responses From 'merMod' Object
sleepstudyReaction times in a sleep deprivation study
troubleshootingTroubleshooting
utilitiesPrint and Summary Method Utilities for Mixed Effects
VarCorrExtract Variance and Correlation Components
vcconvConvert between representations of (co-)variance structures
vcov.merModCovariance matrix of estimated parameters
VerbAggVerbal Aggression item responses
lme4/lme4 documentation built on June 14, 2025, 8:49 p.m.