internalImage: Internal images

In RNifti: Fast R and C++ Access to NIfTI Images

Internal images

Description

An internal image is a simple R object with a few attributes including a pointer to an internal C structure, which contains the full image data. They are used in the package for efficiency, but can be converted to a normal R array using the as.array method. Attributes of these objects should not be changed.

Usage

## S3 method for class 'internalImage'
dim(x)

## S3 replacement method for class 'internalImage'
dim(x) <- value

## S3 method for class 'internalImage'
as.array(x, ...)

## S3 method for class 'internalImage'
x[i, j, ..., drop = TRUE]

## S3 replacement method for class 'internalImage'
x[i, j, ...] <- value

Arguments

x	An "internalImage" object.
value	Not used. Changing the dimensions of (or data in) an internal image is invalid, and will produce an error. Convert to an array first.
...	Additional parameters to methods. Only used for additional indices.
i, j	Index vectors. May be missing, which indicates that the whole of the relevant dimension should be obtained.
drop	If TRUE (the default), unitary indices in the result will be dropped. This mirrors the behaviour of standard array indexing.

Author(s)

Jon Clayden <[e-mail]>

RNifti documentation built on May 31, 2023, 5:59 p.m.