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lme4 (version 0.4-7)
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
389,866
Version
0.4-7
License
GPL version 2 or later
Maintainer
Douglas Bates
Last Published
March 26th, 2025
Functions in lme4 (0.4-7)
Search all functions
Names
Extract or assign Names
fixed.effects
Extract Fixed Effects
LMEgradient
The gradient and Hessian in lme optimization-method
GLMM
Fit Generalized Linear Mixed Models via PQL
corFactor
Extract the correlation factor
VarCorr-class
Class "VarCorr"
isInitialized
Check for initialization
glmmStruct
Create a glmm object
EMstepsGets
Perform EM iterations
LMEoptimizeGets
Optimize linear mixed-effects
corrmatrix-class
Class "corrmatrix"
corMatrix
Generate the correlation matrix
lmeLevel
Construct an lmeLevel object
glmm-class
Class "glmm"
EMupdateGets
Update an object in the EM algorithm
lme-class
Class "lme"
logDet
Logarithm of the determinant
pdmatrix-class
Positive-definite matrices
guPrenat
Prenatal care in Guatemala
reStruct-class
Class "reStruct"
BIC
Bayesian Information Criterion
model.matrixGets
Assign the model.matrix
formulas
Utilities for formulas
nlmeInternal-class
Some internal classes
pooledSD
Extract pooled standard deviation
coefGets
Assign parameters
nffGroupedData-class
Class "nffGroupedData"
coerce-methods
Coercion methods and assignments
Hsb82
High School and Beyond - 1982
lmeControl
Control values for lme
pdDiag-class
Class "pdDiag"
pdMatrix
Return the positive-definite matrix
pdgradient
Evaluated the pdmatrix gradient
matrixGets
Assign the matrix
nfGroupedData-class
Class "nfGroupedData"
nfnGroupedData-class
Class "nfnGroupedData"
groupedData
Creation of groupedData objects
random.effects
Extract Random Effects
lmeLevel-class
Class "lmeLevel"
intervals
Confidence Intervals on Coefficients
pdNatural-class
Class "pdNatural", positive-definite matrices
responseGets
Modify the response
reStruct
Create an reStruct object
pdIdent-class
Class "pdIdent"
weightedGets
Modify the weights
pdCompSymm-class
Class "pdCompSymm"
summary.reStruct-class
Class "summary.reStruct"
pdLogChol-class
Class "pdLogChol", positive-definite matrices
pdfactor-class
Factors of positive-definite matrices
pdMat-class
Class pdMat, positive-definite matrices
pdBlocked-class
Class "pdBlocked", blocked pd matrices
lme
Fit linear mixed-effects models
pdgradNumeric
Evaluate the pdmatrix gradient numerically
nlme-internal
Internal nlme functions
lmList
List of lm Objects with a Common Model
groupedData-class
Class "groupedData"
nmGroupedData-class
Class "nmGroupedData"
VarCorr
Extract variance and correlation components
guImmun
Immunization in Guatemala
pdFactor
Square-root factor
family-class
Class "family"
lmList-class
Class "lmList"
solve-methods
Methods for Function solve
RatPupWeight
The weight of rat pups
MathAchSchool
School demographic data for MathAchieve
Cefamandole
Pharmacokinetics of Cefamandole
Tetracycline1
Pharmacokinetics of tetracycline
s3bbx
Covariates in the Rodriguez and Goldman simulation
Remifentanil
Pharmacokinetics of remifentanil
Machines
Productivity Scores for Machines and Workers
Glucose
Glucose levels over time
Glucose2
Glucose Levels Following Alcohol Ingestion
MathAchieve
Mathematics achievement scores
IGF
Radioimmunoassay of IGF-I Protein
Gun
Methods for firing naval guns
Fatigue
Cracks caused by metal fatigue
ergoStool
Ergometrics experiment with stool types
Nitrendipene
Assay of nitrendipene
Dialyzer
High-Flux Hemodialyzer
Ovary
Counts of Ovarian Follicles
Gasoline
Refinery yield of gasoline
Relaxin
Assay for Relaxin
Assay
Bioassay on Cell Culture Plate
Tetracycline2
Pharmacokinetics of tetracycline
bdf
Language scores
Orthodont
Growth curve data on an orthdontic measurement
Oats
Split-plot Experiment on Varieties of Oats
Wafer
Modeling of Analog MOS Circuits
Wheat
Yields by growing conditions
Oxboys
Heights of Boys in Oxford
Earthquake
Earthquake Intensity
Soybean
Growth of soybean plants
Quinidine
Quinidine Kinetics
Alfalfa
Split-Plot Experiment on Varieties of Alfalfa
Wheat2
Wheat Yield Trials
Oxide
Variability in Semiconductor Manufacturing
Rail
Evaluation of Stress in Railway Rails
PBG
Effect of Phenylbiguanide on Blood Pressure
Pixel
X-ray pixel intensities over time
Phenobarb
Phenobarbitol Kinetics
Spruce
Growth of Spruce Trees
Meat
Tenderness of meat
Muscle
Contraction of heart muscle sections
Milk
Protein content of cows' milk
BodyWeight
Rat weight over time for different diets
s3bby
Responses simulated by Rodriguez and Goldman