Learn R Programming

⚠️There's a newer version (1.1-37) of this package.Take me there.

lme4 (version 1.1-33)

Linear Mixed-Effects Models using 'Eigen' and S4

Description

Fit linear and generalized linear mixed-effects models. The models and their components are represented using S4 classes and methods. The core computational algorithms are implemented using the 'Eigen' C++ library for numerical linear algebra and 'RcppEigen' "glue".

Copy Link

Version

Install

install.packages('lme4')

Monthly Downloads

544,654

Version

1.1-33

License

GPL (>= 2)

Issues

Pull Requests

Stars

Forks

Repository

https://github.com/lme4/lme4/

Maintainer

Ben Bolker

Last Published

April 25th, 2023

Functions in lme4 (1.1-33)

Assessing Convergence for Fitted Models

Contagious bovine pleuropneumonia

Compute Confidence Intervals for Parameters of a [ng]lmer Fit

Extract the deviance component list

Extended Convergence Checking

Verbal Aggression item responses

Deviance Function in Terms of Standard Deviations/Correlations

Refit a fitted model with all available optimizers

Model-based (Semi-)Parametric Bootstrap for Mixed Models

Breakage Angle of Chocolate Cakes

Dummy variables (experimental)

Drop all possible single fixed-effect terms from a mixed effect model

glmFamily-class

Class "glmFamily" - a reference class for family

Generator object for the glmFamily class

Determine random-effects expressions from a formula

Attempt to convert grouping variables to factors

Extract fixed-effects estimates

Check characteristics of models

Is f1 nested within f2?

expandDoubleVerts

Expand terms with '||' notation into separate '|' terms

add information to data based on a fitted model

glmerLaplaceHandle

Handle for glmerLaplace

Fitting Generalized Linear Mixed-Effects Models

Extract or Get Generalized Components from a Fitted Mixed Effects Model

Fitting Negative Binomial GLMMs

Class "golden" and Generator for Golden Search Optimizer Class

Test Fitted Model for (Near) Singularity

influence.merMod

Influence Diagnostics for Mixed-Effects Models

hatvalues.merMod

Diagonal elements of the hat matrix

Data on red grouse ticks from Elston et al. 2001

Linear, generalized linear, and nonlinear mixed models

Reference Classes for Response Modules, "(lm|glm|nls|lmer)Resp"

Detect testing level for lme4 examples and tests

Class "merMod" of Fitted Mixed-Effect Models

Class "merPredD" - a Dense Predictor Reference Class

Class "lmList4" of 'lm' Objects on Common Model

Fit List of lm or glm Objects with a Common Model

Control of Mixed Model Fitting

Fit Linear Mixed-Effects Models

Generator objects for the response classes

Make Variance and Correlation Matrices from theta

Generator object for the merPredD class

mkSimulateTemplate

Make templates suitable for guiding mixed model simulations

Create a 'merMod' Object

Make Random Effect Terms: Create Z, Lambda, Lind, etc.

Number of Levels of a Factor or a "merMod" Model

Create an lmerResp, glmResp or nlsResp instance

Modular Functions for Mixed Model Fits

Manipulate a Nonlinear Model Formula

Diagnostic Plots for 'merMod' Fits

PCA of random-effects covariance matrix

Getting p-values for fitted models

Fitting Nonlinear Mixed-Effects Models

Mixed-Effects Profile Plots (Regular / Density / Pairs)

Predictions from a model at new data values

Wrappers for additional optimizers

profile-methods

Profile method for merMod objects

Class "rePos"

Extract the modes of the random effects

Omit terms separated by vertical bars in a formula

Generator object for the rePos (random-effects positions) class

simulate.formula

A simulate Method for formula objects that dispatches based on the Left-Hand Side

Extract Residual Standard Deviation 'Sigma'

"Sub[stitute] Bars"

residuals.merMod

residuals of merMod objects

Refit a Model by Maximum Likelihood Criterion

Reaction times in a sleep deprivation study

simulate.merMod

Simulate Responses From merMod Object

Convert between representations of (co-)variance structures

Print and Summary Method Utilities for Mixed Effects

Refit a (merMod) Model with a Different Response

troubleshooting

Troubleshooting

Paste strength by batch and cask

Univariate Gauss-Hermite quadrature rule

Sparse Gaussian / Gauss-Hermite Quadrature grid

Nelder-Mead Optimization of Parameters, Possibly (Box) Constrained

Yield of dyestuff by batch

Arabidopsis clipping/fertilization data

University Lecture/Instructor Evaluations by Students at ETH

Variation in penicillin testing

Extract Variance and Correlation Components

NelderMead-class

Class "NelderMead" of Nelder-Mead optimizers and its Generator