Generalized Nonlinear Least Squares Structure

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.

USAGE:

gnlsStruct(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 nonlinear model.

SEE ALSO:

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EXAMPLES:

gnls1 <- gnlsStruct(corAR1(), varPower())