R: Names of a pdMat Object

Names.pdMat {nlme}

R Documentation

Names of a pdMat Object

Description

This method function returns the fist element of the Dimnames attribute of object, which contains the column names of the matrix represented by object.

Usage

## S3 method for class 'pdMat'
Names(object, ...)
## S3 replacement method for class 'pdMat'
Names(object, ...) <- value

Arguments

`object`	an object inheriting from class `"pdMat"`, representing a positive-definite matrix.
`value`	a character vector with the replacement values for the column and row names of the matrix represented by `object`. It must have length equal to the dimension of the matrix represented by `object` and, if names have been previously assigned to `object`, it must correspond to a permutation of the original names.
`...`	some methods for this generic require additional arguments. None are used in this method.

Value

if object has a Dimnames attribute then the first element of this attribute is returned; otherwise NULL.

SIDE EFFECTS

On the left side of an assignment, sets the Dimnames attribute of object to list(value, value).

Author(s)

José Pinheiro and Douglas Bates bates@stat.wisc.edu

Examples

pd1 <- pdSymm(~age, data = Orthodont)
Names(pd1)

[Package nlme version 3.1-166 Index]