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

Indexing methods

Description

Indexing methods for SparseArray and MriImage objects. For the latter class, arguments are passed to the equivalents for array or SparseArray, except where i is another MriImage object, where its nonzero region will be used to provide the indices. 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 method for signature 'MriImage,MriImage,missing'
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

## S4 replacement method for signature 'MriImage,MriImage,missing'
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