nlme: lmeStruct – R documentation

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

lmeStruct

Linear Mixed-Effects Structure

Description

A linear mixed-effects structure is a list of model components representing different sets of parameters in the linear mixed-effects model. An lmeStruct list must contain at least a reStruct object, but may also contain corStruct and varFunc objects. NULL arguments are not included in the lmeStruct list.

Usage

lmeStruct(reStruct, corStruct, varStruct)

Arguments

`reStruct`	a `reStruct` representing a random effects structure.
`corStruct`	an optional `corStruct` object, representing a correlation structure. Default is `NULL`.
`varStruct`	an optional `varFunc` object, representing a variance function structure. Default is `NULL`.

Value

a list of model components determining the parameters to be estimated for the associated linear mixed-effects model.

Author(s)

José Pinheiro and Douglas Bates bates@stat.wisc.edu

Examples

lms1 <- lmeStruct(reStruct(~age), corAR1(), varPower())

nlme

Linear and Nonlinear Mixed Effects Models

v3.1-152

GPL (>= 2) | file LICENCE

Authors

José Pinheiro [aut] (S version), Douglas Bates [aut] (up to 2007), Saikat DebRoy [ctb] (up to 2002), Deepayan Sarkar [ctb] (up to 2005), EISPACK authors [ctb] (src/rs.f), Siem Heisterkamp [ctb] (Author fixed sigma), Bert Van Willigen [ctb] (Programmer fixed sigma), Johannes Ranke [ctb] (varConstProp()), R-core [aut, cre]

Initial release

2021-02-03