Generalized Nonlinear Least Squares Structure
Usage
gnlsStruct(corStruct, varStruct)
Arguments
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 .
|
Description
A generalized nonlinear least squares structure is a list of model
components representing different sets of parameters in the nonlinear
model. A gnlsStruct
may contain corStruct
and
varFunc
objects. NULL
arguments are not included in the
gnlsStruct
list.Value
a list of model variance-covariance components determining the
parameters to be estimated for the associated nonlinear model.Author(s)
Jose Pinheiro and Douglas BatesSee Also
gnls
, corClasses
,
varFunc
Examples
library(lme)
gnls1 <- gnlsStruct(corAR1(), varPower())