solve.reStruct             package:nlme             R Documentation

Apply Solve to an reStruct Object

Description:

     'Solve' is applied to each 'pdMat' component of 'a', which results
     in inverting the positive-definite matrices they represent.

Usage:

     ## S3 method for class 'reStruct':
     solve(a, b, ...)

Arguments:

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

       b: this argument is only included for consistency with the
          generic function and is not used in this method function.

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

Value:

     an 'reStruct' object similar to 'a', but with the 'pdMat'
     components representing the inverses of the matrices represented
     by the components of 'a'.

Author(s):

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

See Also:

     'solve.pdMat', 'reStruct'

Examples:

     rs1 <- reStruct(list(A = pdSymm(diag(1:3), form = ~Score),
       B = pdDiag(2 * diag(4), form = ~Educ)))
     solve(rs1)

