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:

solve(a, b, tol) 

REQUIRED ARGUMENTS:

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

OPTIONAL ARGUMENTS:

b
this argument is only included for consistency with the generic function and is not used in this method function.
tol
an optional numeric value for the tolerance used in the numerical algorithm. Defaults to 1e-7.

VALUE:

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

SEE ALSO:

,

EXAMPLES:

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