glsStruct {nlme} | R Documentation |
A generalized least squares structure is a list of model components
representing different sets of parameters in the linear
model. A glsStruct
may contain corStruct
and
varFunc
objects. NULL
arguments are not included in the
glsStruct
list.
glsStruct(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 linear model.
Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates bates@stat.wisc.edu
gls1 <- glsStruct(corAR1(), varPower())