npm package: @stdlib/array-base-strided2array4d
Description: Convert a strided array to a four-dimensional nested array.
Author: The Stdlib Authors
Latest version: 0.2.3

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# strided2array4d

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> Convert a strided array to a four-dimensional nested array.

<section class="intro">

</section>

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<section class="installation">

## Installation

```bash
npm install @stdlib/array-base-strided2array4d
```

</section>

<section class="usage">

## Usage

```javascript
var strided2array4d = require( '@stdlib/array-base-strided2array4d' );
```

#### strided2array4d( x, shape, strides, offset )

Converts a strided array to a four-dimensional nested array.

```javascript
var x = [ 1, 2, 3, 4, 5, 6 ];

var arr = strided2array4d( x, [ 1, 1, 3, 2 ], [ 6, 6, 2, 1 ], 0 );
// returns [ [ [ [ 1, 2 ], [ 3, 4 ], [ 5, 6 ] ] ] ]

arr = strided2array4d( x, [ 1, 1, 3, 2 ], [ 1, 1, 1, 3 ], 0 );
// returns [ [ [ [ 1, 4 ], [ 2, 5 ], [ 3, 6 ] ] ] ]
```

The function accepts the following arguments:

-   **x**: input array.
-   **shape**: array shape.
-   **strides**: dimension strides.
-   **offset**: index of the first indexed value in the input array.

</section>

<!-- /.usage -->

<section class="notes">

## Notes

-   The function assumes that the input array is [compatible][@stdlib/ndarray/base/assert/is-buffer-length-compatible] with the specified array shape, dimension strides, and index offset.

</section>

<!-- /.notes -->

<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var zeroTo = require( '@stdlib/array-base-zero-to' );
var numel = require( '@stdlib/ndarray-base-numel' );
var shape2strides = require( '@stdlib/ndarray-base-shape2strides' );
var strided2array4d = require( '@stdlib/array-base-strided2array4d' );

var shape = [ 1, 3, 3, 3 ];

var x = zeroTo( numel( shape ) );
console.log( x );

var y = strided2array4d( x, shape, shape2strides( shape, 'row-major' ), 0 );
console.log( y );

y = strided2array4d( x, shape, shape2strides( shape, 'column-major' ), 0 );
console.log( y );
```

</section>

<!-- /.examples -->

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<section class="related">

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* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

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