Initialize.glsStruct          package:nlme          R Documentation

Initialize a glsStruct Object

Description:

     The individual linear model components of the 'glsStruct' list are
     initialized.

Usage:

     ## S3 method for class 'glsStruct':
     Initialize(object, data, control, ...)

Arguments:

  object: an object inheriting from class 'glsStruct', representing a
          list of linear model components, such as 'corStruct' and
          'varFunc' objects.

    data: a data frame in which to evaluate the variables defined in
          'formula(object)'.

 control: an optional list with control parameters for the
          initialization and optimization algorithms used in 'gls'.
          Defaults to 'list(singular.ok = FALSE, qrTol =
          .Machine$single.eps)', implying that linear dependencies are
          not allowed in the model and that the tolerance for detecting
          linear dependencies among the columns of the regression
          matrix is '.Machine$single.eps'.

     ...: some methods for this generic require additional arguments. 
          None are used in this method.

Value:

     a 'glsStruct' object similar to 'object', but with initialized
     model components.

Author(s):

     Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates
     bates@stat.wisc.edu

See Also:

     'gls', 'Initialize.corStruct', 'Initialize.varFunc', 'Initialize'

