formula.reStruct            package:nlme            R Documentation

Extract reStruct Object Formula

Description:

     This method function extracts a formula from each of the 
     components of 'x', returning a list of formulas.

Usage:

     ## S3 method for class 'reStruct':
     formula(x, asList, ...)

Arguments:

       x: an object inheriting from class 'reStruct', representing a
          random effects structure and consisting of a list of 'pdMat'
          objects.

  asList: logical.  Should the asList argument be applied to each of
          the components?

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

Value:

     a list with the formulas of each component of 'x'.

Author(s):

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

See Also:

     'formula'

Examples:

     rs1 <- reStruct(list(A = pdDiag(diag(2), ~age), B = ~1))
     formula(rs1)

