| gnlsStruct(nlme) | R Documentation |
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.
gnlsStruct(corStruct, varStruct)
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. |
a list of model variance-covariance components determining the parameters to be estimated for the associated nonlinear model.
Jose Pinheiro and Douglas Bates
library(nlme) gnls1 <- gnlsStruct(corAR1(), varPower())