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nlme (version 3.1-163)

Linear and Nonlinear Mixed Effects Models

Description

Fit and compare Gaussian linear and nonlinear mixed-effects models.

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Version

Install

install.packages('nlme')

Monthly Downloads

147,147

Version

3.1-163

License

GPL (>= 2)

Last Published

August 9th, 2023

Functions in nlme (3.1-163)

Gasoline

Refinery yield of gasoline
BodyWeight

Rat weight over time for different diets
Fatigue

Cracks caused by metal fatigue
[.pdMat

Subscript a pdMat Object
Glucose

Glucose levels over time
IGF

Radioimmunoassay of IGF-I Protein
Initialize.glsStruct

Initialize a glsStruct Object
Initialize.corStruct

Initialize corStruct Object
Alfalfa

Split-Plot Experiment on Varieties of Alfalfa
Dialyzer

High-Flux Hemodialyzer
Covariate.varFunc

Assign varFunc Covariate
Dim

Extract Dimensions from an Object
Initialize

Initialize Object
Earthquake

Earthquake Intensity
Initialize.varFunc

Initialize varFunc Object
Dim.corSpatial

Dimensions of a corSpatial Object
Dim.pdMat

Dimensions of a pdMat Object
Muscle

Contraction of heart muscle sections
Names.formula

Extract Names from a formula
Initialize.lmeStruct

Initialize an lmeStruct Object
LDEsysMat

Generate system matrix for LDEs
Dim.corStruct

Dimensions of a corStruct Object
Glucose2

Glucose Levels Following Alcohol Ingestion
Names.pdBlocked

Names of a pdBlocked Object
RatPupWeight

The weight of rat pups
MathAchieve

Mathematics achievement scores
Rail

Evaluation of Stress in Railway Rails
Gun

Methods for firing naval guns
Machines

Productivity Scores for Machines and Workers
Tetracycline1

Pharmacokinetics of tetracycline
Tetracycline2

Pharmacokinetics of tetracycline
Names

Names Associated with an Object
Matrix

Assign Matrix Values
Names.pdMat

Names of a pdMat Object
Matrix.reStruct

Assign reStruct Matrices
MathAchSchool

School demographic data for MathAchieve
Matrix.pdMat

Assign Matrix to a pdMat or pdBlocked Object
Ovary

Counts of Ovarian Follicles
Orthodont

Growth curve data on an orthdontic measurement
Pixel

X-ray pixel intensities over time
Variogram.default

Calculate Semi-variogram
Quinidine

Quinidine Kinetics
Oxboys

Heights of Boys in Oxford
Initialize.reStruct

Initialize reStruct Object
Variogram.corSpatial

Calculate Semi-variogram for a corSpatial Object
Names.reStruct

Names of an reStruct Object
Nitrendipene

Assay of nitrendipene
Spruce

Growth of Spruce Trees
Soybean

Growth of soybean plants
Variogram

Calculate Semi-variogram
PBG

Effect of Phenylbiguanide on Blood Pressure
Oats

Split-plot Experiment on Varieties of Oats
VarCorr

Extract variance and correlation components
Variogram.corSpher

Calculate Semi-variogram for a corSpher Object
Phenobarb

Phenobarbitol Kinetics
Wheat

Yields by growing conditions
Oxide

Variability in Semiconductor Manufacturing
Meat

Tenderness of meat
as.matrix.pdMat

Matrix of a pdMat Object
Wheat2

Wheat Yield Trials
Relaxin

Assay for Relaxin
Variogram.lme

Calculate Semi-variogram for Residuals from an lme Object
Remifentanil

Pharmacokinetics of Remifentanil
Variogram.gls

Calculate Semi-variogram for Residuals from a gls Object
augPred

Augmented Predictions
Wafer

Modeling of Analog MOS Circuits
bdf

Language scores
comparePred

Compare Predictions
Milk

Protein content of cows' milk
as.matrix.reStruct

Matrices of an reStruct Object
Variogram.corLin

Calculate Semi-variogram for a corLin Object
Variogram.corExp

Calculate Semi-variogram for a corExp Object
coef.corStruct

Coefficients of a corStruct Object
allCoef

Extract Coefficients from a Set of Objects
coef.varFunc

varFunc Object Coefficients
balancedGrouped

Create a groupedData object from a matrix
Variogram.corGaus

Calculate Semi-variogram for a corGaus Object
Variogram.corRatio

Calculate Semi-variogram for a corRatio Object
anova.lme

Compare Likelihoods of Fitted Objects
anova.gls

Compare Likelihoods of Fitted Objects
coef.gnls

Extract gnls Coefficients
corARMA

ARMA(p,q) Correlation Structure
as.matrix.corStruct

Matrix of a corStruct Object
coef.pdMat

pdMat Object Coefficients
coef.reStruct

reStruct Object Coefficients
collapse

Collapse According to Groups
asOneFormula

Combine Formulas of a Set of Objects
corFactor.corStruct

Factor of a corStruct Object Matrix
coef.lmList

Extract lmList Coefficients
corGaus

Gaussian Correlation Structure
asTable

Convert groupedData to a matrix
corLin

Linear Correlation Structure
corMatrix

Extract Correlation Matrix
collapse.groupedData

Collapse a groupedData Object
corSpher

Spherical Correlation Structure
coef.lme

Extract lme Coefficients
coef.modelStruct

Extract modelStruct Object Coefficients
corMatrix.corStruct

Matrix of a corStruct Object
corCAR1

Continuous AR(1) Correlation Structure
corSymm

General Correlation Structure
corAR1

AR(1) Correlation Structure
ergoStool

Ergometrics experiment with stool types
fdHess

Finite difference Hessian
formula.pdBlocked

Extract pdBlocked Formula
corClasses

Correlation Structure Classes
corRatio

Rational Quadratic Correlation Structure
corSpatial

Spatial Correlation Structure
fitted.lmeStruct

Calculate lmeStruct Fitted Values
formula.pdMat

Extract pdMat Formula
corCompSymm

Compound Symmetry Correlation Structure
compareFits

Compare Fitted Objects
corMatrix.reStruct

Extract Correlation Matrix from Components of an reStruct Object
glsObject

Fitted gls Object
getGroups.corStruct

Extract corStruct Groups
glsControl

Control Values for gls Fit
corMatrix.pdMat

Extract Correlation Matrix from a pdMat Object
corNatural

General correlation in natural parameterization
getGroups.data.frame

Extract Groups from a Data Frame
getCovariate.data.frame

Extract Data Frame Covariate
gnlsStruct

Generalized Nonlinear Least Squares Structure
corExp

Exponential Correlation Structure
fitted.glsStruct

Calculate glsStruct Fitted Values
fitted.nlmeStruct

Calculate nlmeStruct Fitted Values
fitted.gnlsStruct

Calculate gnlsStruct Fitted Values
getCovariate.varFunc

Extract varFunc Covariate
corFactor

Factor of a Correlation Matrix
fitted.lmList

Extract lmList Fitted Values
getData

Extract Data from an Object
fixed.effects

Extract Fixed Effects
getGroupsFormula

Extract Grouping Formula
getCovariateFormula

Extract Covariates Formula
fitted.lme

Extract lme Fitted Values
getResponseFormula

Extract Formula Specifying Response Variable
fixef.lmList

Extract lmList Fixed Effects
logDet.reStruct

Extract reStruct Log-Determinants
groupedData

Construct a groupedData Object
logLik.corStruct

Extract corStruct Log-Likelihood
nlmeControl

Control Values for nlme Fit
getCovariate

Extract Covariate from an Object
nlsList.selfStart

nlsList Fit from a selfStart Function
nlmeObject

Fitted nlme Object
getCovariate.corStruct

Extract corStruct Object Covariate
getData.gls

Extract gls Object Data
getGroups.lme

Extract lme Object Groups
getVarCov

Extract variance-covariance matrix
intervals.gls

Confidence Intervals on gls Parameters
pairs.compareFits

Pairs Plot of compareFits Object
getGroups.varFunc

Extract varFunc Groups
formula.reStruct

Extract reStruct Object Formula
getData.lmList

Extract lmList Object Data
intervals.lmList

Confidence Intervals on lmList Coefficients
getResponse

Extract Response Variable from an Object
gapply

Apply a Function by Groups
gnlsControl

Control Values for gnls Fit
gnlsObject

Fitted gnls Object
intervals.lme

Confidence Intervals on lme Parameters
pdSymm

General Positive-Definite Matrix
isBalanced

Check a Design for Balance
phenoModel

Model function for the Phenobarb data
logDet.corStruct

Extract corStruct Log-Determinant
getData.lme

Extract lme Object Data
plot.ACF

Plot an ACF Object
getGroups

Extract Grouping Factors from an Object
glsStruct

Generalized Least Squares Structure
gsummary

Summarize by Groups
getGroups.gls

Extract gls Object Groups
logDet.pdMat

Extract Log-Determinant from a pdMat Object
logLik.lmeStruct

Log-Likelihood of an lmeStruct Object
logLik.lme

Log-Likelihood of an lme Object
lme.groupedData

LME fit from groupedData Object
gnls

Fit Nonlinear Model Using Generalized Least Squares
getGroups.lmList

Extract lmList Object Groups
isInitialized

Check if Object is Initialized
lme.lmList

LME fit from lmList Object
intervals

Confidence Intervals on Coefficients
plot.Variogram

Plot a Variogram Object
gls-internal

Auxiliary functions used by gls
gls

Fit Linear Model Using Generalized Least Squares
lmeControl

Specifying Control Values for lme Fit
lmList

List of lm Objects with a Common Model
lmList.groupedData

lmList Fit from a groupedData Object
lmeStruct

Linear Mixed-Effects Structure
lmeObject

Fitted lme Object
nlme

Nonlinear Mixed-Effects Models
logLik.gnlsStruct

Log-Likelihood of a gnlsStruct Object
nlmeStruct

Nonlinear Mixed-Effects Structure
logDet

Extract the Logarithm of the Determinant
lme

Linear Mixed-Effects Models
logLik.varFunc

Extract varFunc logLik
logLik.reStruct

Calculate reStruct Log-Likelihood
nlme.nlsList

NLME fit from nlsList Object
logLik.lmList

Log-Likelihood of an lmList Object
pdCompSymm

Positive-Definite Matrix with Compound Symmetry Structure
logLik.glsStruct

Log-Likelihood of a glsStruct Object
pdConstruct

Construct pdMat Objects
logLik.gnls

Log-Likelihood of a gnls Object
model.matrix.reStruct

reStruct Model Matrix
pdMatrix.reStruct

Extract Matrix or Square-Root Factor from Components of an reStruct Object
pdNatural

General Positive-Definite Matrix in Natural Parametrization
needUpdate

Check if Update is Needed
plot.ranef.lme

Plot a ranef.lme Object
nlsList

List of nls Objects with a Common Model
plot.nffGroupedData

Plot an nffGroupedData Object
needUpdate.modelStruct

Check if a modelStruct Object Needs Updating
pooledSD

Extract Pooled Standard Deviation
random.effects

Extract Random Effects
pdMatrix

Extract Matrix or Square-Root Factor from a pdMat Object
pdMat

Positive-Definite Matrix
pdConstruct.pdBlocked

Construct pdBlocked Objects
ranef.lmList

Extract lmList Random Effects
nlme-deprecated

Deprecated Functions in Package nlme
residuals.glsStruct

Calculate glsStruct Residuals
residuals.gnlsStruct

Calculate gnlsStruct Residuals
pairs.lmList

Pairs Plot of an lmList Object
pdBlocked

Positive-Definite Block Diagonal Matrix
pdClasses

Positive-Definite Matrix Classes
plot.nfnGroupedData

Plot an nfnGroupedData Object
predict.gls

Predictions from a gls Object
predict.lmList

Predictions from an lmList Object
plot.compareFits

Plot a compareFits Object
pairs.lme

Pairs Plot of an lme Object
plot.augPred

Plot an augPred Object
predict.gnls

Predictions from a gnls Object
pdFactor

Square-Root Factor of a Positive-Definite Matrix
print.varFunc

Print a varFunc Object
plot.gls

Plot a gls Object
pdFactor.reStruct

Extract Square-Root Factor from Components of an reStruct Object
predict.lme

Predictions from an lme Object
plot.intervals.lmList

Plot lmList Confidence Intervals
ranef.lme

Extract lme Random Effects
plot.ranef.lmList

Plot a ranef.lmList Object
qqnorm.lme

Normal Plot of Residuals or Random Effects from an lme Object
plot.nmGroupedData

Plot an nmGroupedData Object
quinModel

Model function for the Quinidine data
simulate.lme

Simulate Results from lme Models
qqnorm.gls

Normal Plot of Residuals from a gls Object
reStruct

Random Effects Structure
pdDiag

Diagonal Positive-Definite Matrix
recalc.varFunc

Recalculate for varFunc Object
residuals.lme

Extract lme Residuals
pdIdent

Multiple of the Identity Positive-Definite Matrix
residuals.lmList

Extract lmList Residuals
summary.varFunc

Summarize "varFunc" Object
summary.pdMat

Summarize a pdMat Object
residuals.gls

Extract gls Residuals
solve.pdMat

Calculate Inverse of a Positive-Definite Matrix
pdLogChol

General Positive-Definite Matrix
solve.reStruct

Apply Solve to an reStruct Object
splitFormula

Split a Formula
residuals.lmeStruct

Calculate lmeStruct Residuals
update.modelStruct

Update a modelStruct Object
predict.nlme

Predictions from an nlme Object
plot.lmList

Plot an lmList Object
plot.lme

Plot an lme or nls object
summary.lmList

Summarize an lmList Object
summary.lme

Summarize an lme Object
varFunc

Variance Function Structure
varClasses

Variance Function Classes
update.varFunc

Update varFunc Object
print.summary.pdMat

Print a summary.pdMat Object
recalc

Recalculate Condensed Linear Model Object
recalc.corStruct

Recalculate for corStruct Object
residuals.nlmeStruct

Calculate nlmeStruct Residuals
recalc.reStruct

Recalculate for an reStruct Object
recalc.modelStruct

Recalculate for a modelStruct Object
varIdent

Constant Variance Function
summary.corStruct

Summarize a corStruct Object
summary.gls

Summarize a Generalized Least Squares gls Object
varConstPower

Constant Plus Power Variance Function
varWeights

Extract Variance Function Weights
varPower

Power Variance Function
varConstProp

Constant Plus Proportion Variance Function
summary.modelStruct

Summarize a modelStruct Object
varComb

Combination of Variance Functions
summary.nlsList

Summarize an nlsList Object
varWeights.glsStruct

Variance Weights for glsStruct Object
varFixed

Fixed Variance Function
varExp

Exponential Variance Function
varWeights.lmeStruct

Variance Weights for lmeStruct Object
Coef

Assign Values to Coefficients
ACF

Autocorrelation Function
Assay

Bioassay on Cell Culture Plate
Covariate

Assign Covariate Values
Cefamandole

Pharmacokinetics of Cefamandole
ACF.gls

Autocorrelation Function for gls Residuals
ACF.lme

Autocorrelation Function for lme Residuals