R: Indexing methods

[,SparseArray,ANY,ANY-method {tractor.base}

R Documentation

Indexing methods

Description

Indexing methods for SparseArray and MriImage objects. For the latter class, arguments are passed to the equivalents for array or SparseArray. For SparseArray, indexing may be blank, or by numeric vector or matrix.

Usage

## S4 method for signature 'SparseArray,ANY,ANY'
x[i, j, ..., drop = TRUE]

## S4 replacement method for signature 'SparseArray,ANY,ANY'
x[i, j, ...] <- value

## S4 method for signature 'MriImage,missing,missing'
x[i, j, ..., drop = TRUE]

## S4 method for signature 'MriImage,ANY,missing'
x[i, j, ..., drop = TRUE]

## S4 method for signature 'MriImage,missing,ANY'
x[i, j, ..., drop = TRUE]

## S4 method for signature 'MriImage,ANY,ANY'
x[i, j, ..., drop = TRUE]

## S4 replacement method for signature 'MriImage,missing,missing'
x[i, j, ...] <- value

## S4 replacement method for signature 'MriImage,ANY,missing'
x[i, j, ...] <- value

## S4 replacement method for signature 'MriImage,missing,ANY'
x[i, j, ...] <- value

## S4 replacement method for signature 'MriImage,ANY,ANY'
x[i, j, ...] <- value

Arguments

`x`	An object of the appropriate type.
`i, j, ...`	Indexing objects.
`drop`	Scalar value: should unitary dimensions be dropped?
`value`	New value(s) for replacement forms.

Value

A vector, array or SparseArray.

Author(s)

Jon Clayden

[Package tractor.base version 3.1.0 Index]