R: Assign Matrix to a pdMat Object

Assign Matrix to a pdMat Object

Usage

matrix(object) <- value

Arguments

`object`	an object inheriting from class code{pdMat}, representing a positive definite matrix.
`value`	a matrix with the new values to be assigned to the positive-definite matrix represented by `object`. Must have the same dimensions as `as.matrix(object)`.

Description

The positive-definite matrix represented by object is replaced by value. If the original matrix had row and/or column names, the corresponding names for value can either be NULL, or a permutation of the original names.

Value

a pdMat object similar to object, but with its coefficients modified to produce the matrix in value.

Author(s)

Jose Pinheiro and Douglas Bates

Examples

library(lme)
pd1 <- pdSymm(diag(3))
matrix(pd1) <- diag(1:3)
pd1

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