extractor3d

[,ArrayLike3D,numeric,missing,ANY-method

[,ArrayLike3D,matrix,missing,ANY-method

[,ArrayLike3D,missing,missing,ANY-method

[,ArrayLike3D,missing,numeric,ANY-method

This generic function provides array-like access for 3-dimensional data structures.
It allows for flexible indexing and subsetting of 3D arrays or array-like objects.

A collection of data structures and methods for handling volumetric
brain imaging data, with a focus on functional magnetic resonance imaging (fMRI). Provides efficient
representations for three-dimensional and four-dimensional neuroimaging data through sparse and dense array
implementations, memory-mapped file access for large datasets, and
spatial transformation capabilities. Implements methods for image resampling,
spatial filtering, region of interest analysis, and connected component labeling. General introduction
to fMRI analysis can be found in Poldrack et al. (2024, "Handbook of functional MRI data analysis",
<ISBN:9781108795760>).

Bradley Buchsbaum

neuroim2

Data Structures for Brain Imaging Data

extractor3d function

<dl><dt>x</dt>
<dd>The 3-dimensional object to be accessed.</dd>
<dt>i</dt>
<dd>First index or dimension.</dd>
<dt>j</dt>
<dd>Second index or dimension.</dd>
<dt>k</dt>
<dd>Third index or dimension.</dd>
<dt>...</dt>
<dd>Additional arguments passed to methods.</dd>
<dt>drop</dt>
<dd>Logical. If TRUE, the result is coerced to the lowest possible dimension.</dd></dl>

Arguments

Array-like access for 3-dimensional data structures — extractor3d

<dl>

<dt>x</dt>
<dd>The 3-dimensional object to be accessed.</dd>


<dt>i</dt>
<dd>First index or dimension.</dd>


<dt>j</dt>
<dd>Second index or dimension.</dd>


<dt>k</dt>
<dd>Third index or dimension.</dd>


<dt>...</dt>
<dd>Additional arguments passed to methods.</dd>


<dt>drop</dt>
<dd>Logical. If TRUE, the result is coerced to the lowest possible dimension.</dd>

</dl>

extractor3d: Array-like access for 3-dimensional data structures

Description

Usage

Value

Arguments