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lme4 (version 0.6-12)
Linear mixed-effects models using S4 classes
Description
Fit linear and generalized linear mixed-effects models.
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Install
install.packages('lme4')
Monthly Downloads
539,225
Version
0.6-12
License
GPL version 2 or later
Maintainer
Douglas Bates
Last Published
December 2nd, 2025
Functions in lme4 (0.6-12)
Search all functions
GLMM-class
Class "GLMM"
Hsb82
High School and Beyond - 1982
formulas
Utilities for formulas
contr.SAS
Contrast Matrices for SAS-like Results
lmeControl
Control values for lme
GLMM
Fit Generalized Linear Mixed Models via PQL
pooledSD
Extract pooled standard deviation
BIC
Bayesian Information Criterion
Names
Extract or assign Names
VarCorr
Extract variance and correlation components
Socatt
Social Attitudes Survey
lme
Fit linear mixed-effects models
intervals
Confidence Intervals on Coefficients
guPrenat
Prenatal care in Guatemala
summary.GLMM-class
Class "summary.GLMM"
lmList
List of lm Objects with a Common Model
Mmmec
Malignant melanoma deaths in Europe
lmer-class
lme models representation
fixed.effects
Extract Fixed Effects
guImmun
Immunization in Guatemala
summary.lme-class
Class "summary.lme"
lmList-class
Class "lmList"
lme-class
Class "lme"
Contraception
Contraceptive use in Bangladesh
gsummary
Summarize a data frame by group
summary.lmer-class
Class "summary.lmer"
groupedData
Creation of groupedData objects
random.effects
Extract Random Effects
Gcsemv
GCSE exam score
Early
Early childhood intervention study
VarCorr-class
Class "VarCorr"
egsingle
US Sustaining Effects study
lmer
Fit linear mixed-effects models
Oxboys
Heights of Boys in Oxford
Wheat2
Wheat Yield Trials
Machines
Productivity Scores for Machines and Workers
s3bbx
Covariates in the Rodriguez and Goldman simulation
s3bby
Responses simulated by Rodriguez and Goldman
Orthodont
Growth curve data on an orthdontic measurement
Nitrendipene
Assay of nitrendipene
Quinidine
Quinidine Kinetics
Gasoline
Refinery yield of gasoline
Cefamandole
Pharmacokinetics of Cefamandole
Gun
Methods for firing naval guns
Remifentanil
Pharmacokinetics of remifentanil
Assay
Bioassay on Cell Culture Plate
PBG
Effect of Phenylbiguanide on Blood Pressure
Oxide
Variability in Semiconductor Manufacturing
Soybean
Growth of soybean plants
Fatigue
Cracks caused by metal fatigue
Milk
Protein content of cows' milk
bdf
Language scores
Pixel
X-ray pixel intensities over time
ergoStool
Ergometrics experiment with stool types
MathAchSchool
School demographic data for MathAchieve
Wheat
Yields by growing conditions
Relaxin
Assay for Relaxin
IGF
Radioimmunoassay of IGF-I Protein
Spruce
Growth of Spruce Trees
Wafer
Modeling of Analog MOS Circuits
Rail
Evaluation of Stress in Railway Rails
Earthquake
Earthquake Intensity
Glucose
Glucose levels over time
Ovary
Counts of Ovarian Follicles
Oats
Split-plot Experiment on Varieties of Oats
MathAchieve
Mathematics achievement scores
Dialyzer
High-Flux Hemodialyzer
Glucose2
Glucose Levels Following Alcohol Ingestion
Meat
Tenderness of meat
RatPupWeight
The weight of rat pups
Alfalfa
Split-Plot Experiment on Varieties of Alfalfa
Tetracycline1
Pharmacokinetics of tetracycline
Tetracycline2
Pharmacokinetics of tetracycline
BodyWeight
Rat weight over time for different diets
Phenobarb
Phenobarbitol Kinetics
Muscle
Contraction of heart muscle sections