https://github.com/stdlib-js/array-base-broadcasted-ternary4d
Apply a ternary callback to elements in three broadcasted input arrays and assign results to elements in a four-dimensional nested output array.
https://github.com/stdlib-js/array-base-broadcasted-ternary4d
4d apply array base binary broadcast foreach javascript map matrix multidimensional ndarray node node-js nodejs stdlib transform
Last synced: about 1 year ago
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Apply a ternary callback to elements in three broadcasted input arrays and assign results to elements in a four-dimensional nested output array.
- Host: GitHub
- URL: https://github.com/stdlib-js/array-base-broadcasted-ternary4d
- Owner: stdlib-js
- License: apache-2.0
- Created: 2024-11-26T03:42:35.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2025-03-17T01:10:03.000Z (about 1 year ago)
- Last Synced: 2025-03-17T02:29:26.427Z (about 1 year ago)
- Topics: 4d, apply, array, base, binary, broadcast, foreach, javascript, map, matrix, multidimensional, ndarray, node, node-js, nodejs, stdlib, transform
- Language: JavaScript
- Homepage: https://github.com/stdlib-js/stdlib
- Size: 240 KB
- Stars: 1
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
- Citation: CITATION.cff
- Security: SECURITY.md
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README
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# bternary4d
[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url]
> Apply a ternary callback to elements in three [broadcasted][@stdlib/array/base/broadcast-array] nested input arrays and assign results to elements in a four-dimensional nested output array.
## Installation
```bash
npm install @stdlib/array-base-broadcasted-ternary4d
```
Alternatively,
- To load the package in a website via a `script` tag without installation and bundlers, use the [ES Module][es-module] available on the [`esm`][esm-url] branch (see [README][esm-readme]).
- If you are using Deno, visit the [`deno`][deno-url] branch (see [README][deno-readme] for usage intructions).
- For use in Observable, or in browser/node environments, use the [Universal Module Definition (UMD)][umd] build available on the [`umd`][umd-url] branch (see [README][umd-readme]).
The [branches.md][branches-url] file summarizes the available branches and displays a diagram illustrating their relationships.
To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.
## Usage
```javascript
var bternary4d = require( '@stdlib/array-base-broadcasted-ternary4d' );
```
#### bternary4d( arrays, shapes, fcn )
Applies a ternary callback to elements in three [broadcasted][@stdlib/array/base/broadcast-array] nested input arrays and assigns results to elements in a four-dimensional nested output array.
```javascript
var add = require( '@stdlib/number-float64-base-add3' );
var zeros4d = require( '@stdlib/array-base-zeros4d' );
var x = [ [ [ 1.0 ] ] ];
var y = [ [ [ 2.0, 3.0 ] ] ];
var z = [ [ [ [ 4.0, 5.0 ] ] ] ];
var out = zeros4d( [ 1, 1, 2, 2 ] );
var shapes = [
[ 1, 1, 1 ],
[ 1, 1, 2 ],
[ 1, 1, 1, 2 ],
[ 1, 1, 2, 2 ]
];
bternary4d( [ x, y, z, out ], shapes, add );
// out => [ [ [ [ 7.0, 9.0 ], [ 7.0, 9.0 ] ] ] ]
```
The function accepts the following arguments:
- **arrays**: array-like object containing three input nested arrays and one output nested array.
- **shapes**: array shapes.
- **fcn**: ternary function to apply.
## Notes
- The input and output array shapes must be broadcast [compatible][@stdlib/ndarray/base/broadcast-shapes].
## Examples
```javascript
var discreteUniform = require( '@stdlib/random-base-discrete-uniform' ).factory;
var filled4dBy = require( '@stdlib/array-base-filled4d-by' );
var zeros4d = require( '@stdlib/array-base-zeros4d' );
var add = require( '@stdlib/number-float64-base-add3' );
var bternary4d = require( '@stdlib/array-base-broadcasted-ternary4d' );
var shapes = [
[ 1, 1, 1, 3 ],
[ 1, 1, 3, 1 ],
[ 1, 1, 3 ],
[ 1, 1, 3, 3 ]
];
var x = filled4dBy( shapes[ 0 ], discreteUniform( -100, 100 ) );
console.log( x );
var y = filled4dBy( shapes[ 1 ], discreteUniform( -100, 100 ) );
console.log( y );
var z = filled4dBy( shapes[ 2 ], discreteUniform( -100, 100 ) );
console.log( z );
var out = zeros4d( shapes[ 3 ] );
console.log( out );
bternary4d( [ x, y, z, out ], shapes, add );
console.log( out );
```
* * *
## 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 © 2016-2025. The Stdlib [Authors][stdlib-authors].
[npm-image]: http://img.shields.io/npm/v/@stdlib/array-base-broadcasted-ternary4d.svg
[npm-url]: https://npmjs.org/package/@stdlib/array-base-broadcasted-ternary4d
[test-image]: https://github.com/stdlib-js/array-base-broadcasted-ternary4d/actions/workflows/test.yml/badge.svg?branch=main
[test-url]: https://github.com/stdlib-js/array-base-broadcasted-ternary4d/actions/workflows/test.yml?query=branch:main
[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/array-base-broadcasted-ternary4d/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/array-base-broadcasted-ternary4d?branch=main
[chat-image]: https://img.shields.io/gitter/room/stdlib-js/stdlib.svg
[chat-url]: https://app.gitter.im/#/room/#stdlib-js_stdlib:gitter.im
[stdlib]: https://github.com/stdlib-js/stdlib
[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors
[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
[deno-url]: https://github.com/stdlib-js/array-base-broadcasted-ternary4d/tree/deno
[deno-readme]: https://github.com/stdlib-js/array-base-broadcasted-ternary4d/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/array-base-broadcasted-ternary4d/tree/umd
[umd-readme]: https://github.com/stdlib-js/array-base-broadcasted-ternary4d/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/array-base-broadcasted-ternary4d/tree/esm
[esm-readme]: https://github.com/stdlib-js/array-base-broadcasted-ternary4d/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/array-base-broadcasted-ternary4d/blob/main/branches.md
[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/array-base-broadcasted-ternary4d/main/LICENSE
[@stdlib/array/base/broadcast-array]: https://github.com/stdlib-js/array-base-broadcast-array
[@stdlib/ndarray/base/broadcast-shapes]: https://github.com/stdlib-js/ndarray-base-broadcast-shapes