matrix {salad}

Methods for 'matrix', 'array', 'as.matrix' and 'as.vector'

Description

Methods for 'matrix', 'array', 'as.matrix' and 'as.vector'

Usage

## S4 method for signature 'dual'
matrix(data = NA, nrow = 1, ncol = 1, byrow = FALSE, dimnames = NULL)

## S4 method for signature 'dual'
array(data = NA, dim = length(data), dimnames = NULL)

## S3 method for class 'dual'
as.matrix(x, ...)

## S4 method for signature 'dual'
as.matrix(x, ...)

## S3 method for class 'dual'
as.vector(x, mode = "any")

## S4 method for signature 'dual'
as.vector(x, mode = "any")

Arguments

data, x

A dual object

nrow

the desired number of rows

ncol

the desired number of cols

byrow

if 'TRUE' the matrix is filled by rows

dimnames

A 'dimnames' attributes for a matrix or an array

dim

A 'dim' attributes for an array

...

additional arguments (ignored)

mode

The mode of the vector to create

Details

The default behaviour for 'as.matrix' dans 'as.vector' is to drop the derivatives. This can be modified using 'salad' (to use with care). The prefered method to change the shape is to use 'dim<-'.

Value

A dual object for 'matrix' and 'array', a base object for 'as.matrix' and 'as.vector'.

See Also

shape, salad, dual-class

Examples

x <- dual(c(1,2,0,4))
y <- matrix(x, 2, 2)
y
as.matrix(y)
dim(x) <- c(2,2)
x