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lme4 (version 0.6-7)

Linear mixed-effects models using S4 classes

Description

Fit linear and generalized linear mixed-effects models.

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Version

Install

install.packages('lme4')

Monthly Downloads

539,225

Version

0.6-7

License

GPL version 2 or later

Maintainer

Douglas Bates

Last Published

December 2nd, 2025

Functions in lme4 (0.6-7)

pooledSD

Extract pooled standard deviation
GLMM-class

Class "GLMM"
guPrenat

Prenatal care in Guatemala
Socatt

Social Attitudes Survey
Gcsemv

GCSE exam score
BIC

Bayesian Information Criterion
Mmmec

Malignant melanoma deaths in Europe
Exam

Exam scores from inner London
guImmun

Immunization in Guatemala
Hsb82

High School and Beyond - 1982
groupedData

Creation of groupedData objects
Early

Early childhood intervention study
Contraception

Contraceptive use in Bangladesh
lmList

List of lm Objects with a Common Model
lmeControl

Control values for lme
groupedData-class

Class "groupedData"
GLMM

Fit Generalized Linear Mixed Models via PQL
egsingle

US Sustaining Effects study
summary.GLMM-class

Class "summary.GLMM"
VarCorr-class

Class "VarCorr"
lme

Fit linear mixed-effects models
random.effects

Extract Random Effects
Names

Extract or assign Names
lme-class

Class "lme"
gsummary

Summarize a data frame by group
VarCorr

Extract variance and correlation components
formulas

Utilities for formulas
Chem97

Scores on A-level Chemistry in 1997
lmList-class

Class "lmList"
summary.lme-class

Class "summary.lme"
intervals

Confidence Intervals on Coefficients
fixed.effects

Extract Fixed Effects
s3bbx

Covariates in the Rodriguez and Goldman simulation
Nitrendipene

Assay of nitrendipene
Gasoline

Refinery yield of gasoline
PBG

Effect of Phenylbiguanide on Blood Pressure
Assay

Bioassay on Cell Culture Plate
Oxboys

Heights of Boys in Oxford
Oxide

Variability in Semiconductor Manufacturing
MathAchSchool

School demographic data for MathAchieve
Gun

Methods for firing naval guns
MathAchieve

Mathematics achievement scores
Pixel

X-ray pixel intensities over time
Muscle

Contraction of heart muscle sections
Wheat2

Wheat Yield Trials
Earthquake

Earthquake Intensity
Meat

Tenderness of meat
Machines

Productivity Scores for Machines and Workers
Milk

Protein content of cows' milk
Soybean

Growth of soybean plants
RatPupWeight

The weight of rat pups
Tetracycline2

Pharmacokinetics of tetracycline
Alfalfa

Split-Plot Experiment on Varieties of Alfalfa
Glucose

Glucose levels over time
Relaxin

Assay for Relaxin
Orthodont

Growth curve data on an orthdontic measurement
IGF

Radioimmunoassay of IGF-I Protein
Ovary

Counts of Ovarian Follicles
Remifentanil

Pharmacokinetics of remifentanil
Wheat

Yields by growing conditions
Rail

Evaluation of Stress in Railway Rails
bdf

Language scores
Glucose2

Glucose Levels Following Alcohol Ingestion
Phenobarb

Phenobarbitol Kinetics
Tetracycline1

Pharmacokinetics of tetracycline
Wafer

Modeling of Analog MOS Circuits
s3bby

Responses simulated by Rodriguez and Goldman
Spruce

Growth of Spruce Trees
Fatigue

Cracks caused by metal fatigue
Quinidine

Quinidine Kinetics
Cefamandole

Pharmacokinetics of Cefamandole
BodyWeight

Rat weight over time for different diets
Oats

Split-plot Experiment on Varieties of Oats
ergoStool

Ergometrics experiment with stool types
Dialyzer

High-Flux Hemodialyzer