nlme (version 3.1-149)

solve.pdMat: Calculate Inverse of a Positive-Definite Matrix

Description

The positive-definite matrix represented by a is inverted and assigned to a.

Usage

# S3 method for pdMat
solve(a, b, …)

Arguments

a

an object inheriting from class "pdMat", representing a positive definite matrix.

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

a pdMat object similar to a, but with coefficients corresponding to the inverse of the positive-definite matrix represented by a.

See Also

pdMat

Examples

# NOT RUN {
pd1 <- pdCompSymm(3 * diag(3) + 1)
solve(pd1)
# }