# lme4 v0.4-7

0

Monthly downloads

## Linear mixed-effects models using S4 classes

Fit linear and generalized linear mixed-effects models.

## Functions in lme4

Name | Description | |

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 | |

No Results! |

## Last month downloads

## Details

Date | 2004/01/26 |

License | GPL version 2 or later |

depends | base (>= 1.8.0) , lattice , methods |

Contributors | Deepayan Sarkar, Douglas Bates, Saikat DebRoy |

#### Include our badge in your README

```
[![Rdoc](http://www.rdocumentation.org/badges/version/lme4)](http://www.rdocumentation.org/packages/lme4)
```