[,AbstractSparseNeuroVec,numeric,numeric,ANY-method

Extracts a subset of data from a sparse four-dimensional brain image based on provided indices.

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

[,AbstractSparseNeuroVec,numeric,numeric,ANY-method function

<dl><dt>x</dt>
<dd>An object of class <code>AbstractSparseNeuroVec</code></dd>
<dt>i</dt>
<dd>Numeric vector specifying the indices for the first dimension</dd>
<dt>j</dt>
<dd>Numeric vector specifying the indices for the second dimension</dd>
<dt>k</dt>
<dd>Numeric vector specifying the indices for the third dimension (optional)</dd>
<dt>m</dt>
<dd>Numeric vector specifying the indices for the fourth dimension (optional)</dd>
<dt>...</dt>
<dd>Additional arguments passed to methods</dd>
<dt>drop</dt>
<dd>Logical indicating whether to drop dimensions of length one (default: TRUE)</dd></dl>

Arguments

Extractor Method for AbstractSparseNeuroVec — [,AbstractSparseNeuroVec,numeric,numeric,ANY-method

<dl>

<dt>x</dt>
<dd>An object of class <code>AbstractSparseNeuroVec</code></dd>


<dt>i</dt>
<dd>Numeric vector specifying the indices for the first dimension</dd>


<dt>j</dt>
<dd>Numeric vector specifying the indices for the second dimension</dd>


<dt>k</dt>
<dd>Numeric vector specifying the indices for the third dimension (optional)</dd>


<dt>m</dt>
<dd>Numeric vector specifying the indices for the fourth dimension (optional)</dd>


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


<dt>drop</dt>
<dd>Logical indicating whether to drop dimensions of length one (default: TRUE)</dd>

</dl>

[,AbstractSparseNeuroVec,numeric,numeric,ANY-method: Extractor Method for AbstractSparseNeuroVec

Description

Usage

Value

Arguments