Generalized Least Squares Structure

DESCRIPTION:

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.

USAGE:

glsStruct(corStruct, varStruct) 

OPTIONAL 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.

VALUE:

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

SEE ALSO:

, ,

EXAMPLES:

gls1 <- glsStruct(corAR1(), varPower())