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https://github.com/stdlib-js/random-array-tools

Pseudorandom number generator array creation function tools.
https://github.com/stdlib-js/random-array-tools

generator javascript lib library math mathematics node node-js nodejs prng pseudorandom rand random rng seed seedable standard statistics stats stdlib

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Pseudorandom number generator array creation function tools.

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README

        


About stdlib...

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# Tools

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

> Pseudorandom number generator (PRNG) array creation function tools.

## Installation

```bash
npm install @stdlib/random-array-tools
```

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 ns = require( '@stdlib/random-array-tools' );
```

#### ns

Namespace containing array creation pseudorandom number generator (PRNG) function tools.

```javascript
var o = ns;
// returns {...}
```

The namespace contains the following:

- [`binaryFactory( prng, dtypes, dtype )`][@stdlib/random/array/tools/binary-factory]: create a factory function for generating pseudorandom values drawn from a binary PRNG.
- [`binary( prng, dtypes, dtype )`][@stdlib/random/array/tools/binary]: constructor for creating arrays filled with pseudorandom values drawn from a binary PRNG.
- [`nullary( prng, dtypes, dtype )`][@stdlib/random/array/tools/nullary]: constructor for creating arrays filled with pseudorandom values drawn from a nullary PRNG.
- [`ternaryFactory( prng, dtypes, dtype )`][@stdlib/random/array/tools/ternary-factory]: create a factory function for generating pseudorandom values drawn from a ternary PRNG.
- [`ternary( prng, dtypes, dtype )`][@stdlib/random/array/tools/ternary]: constructor for creating arrays filled with pseudorandom values drawn from a ternary PRNG.
- [`unaryFactory( prng, dtypes, dtype )`][@stdlib/random/array/tools/unary-factory]: create a factory function for generating pseudorandom values drawn from a unary PRNG.
- [`unary( prng, dtypes, dtype )`][@stdlib/random/array/tools/unary]: constructor for creating arrays filled with pseudorandom values drawn from a unary PRNG.

## Examples

```javascript
var exponential = require( '@stdlib/random-base-exponential' );
var arcsine = require( '@stdlib/random-base-arcsine' );
var randn = require( '@stdlib/random-base-improved-ziggurat' );
var ns = require( '@stdlib/random-array-tools' );

// Create a binary PRNG array:
var dtypes = [ 'float64', 'float32', 'generic' ];
var defaultDType = 'float64';

var rand = new ns.binary( arcsine, dtypes, defaultDType );
var x = rand.generate( 10, 2.0, 5.0 );
// e.g., returns [ ~3.65, ~4.34, ~3.52, ~4.68, ~2.62, ... ]

// Create a unary PRNG array:
rand = new ns.unary( exponential, dtypes, defaultDType );
x = rand.generate( 10, 0.5 );
// e.g., returns [ ~0.22, ~2.89, ~0.69, ~2.48, ~0.82, ... ]

// Create a nullary PRNG array:
rand = new ns.nullary( randn, dtypes, defaultDType );
x = rand.generate( 10 );
// e.g., returns [ ~-0.22, ~1.89, ~-0.69, ~0.48, ~-0.82, ... ]
```

* * *

## 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 © 2016-2024. The Stdlib [Authors][stdlib-authors].

[npm-image]: http://img.shields.io/npm/v/@stdlib/random-array-tools.svg
[npm-url]: https://npmjs.org/package/@stdlib/random-array-tools

[test-image]: https://github.com/stdlib-js/random-array-tools/actions/workflows/test.yml/badge.svg?branch=main
[test-url]: https://github.com/stdlib-js/random-array-tools/actions/workflows/test.yml?query=branch:main

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/random-array-tools/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/random-array-tools?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/random-array-tools/tree/deno
[deno-readme]: https://github.com/stdlib-js/random-array-tools/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/random-array-tools/tree/umd
[umd-readme]: https://github.com/stdlib-js/random-array-tools/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/random-array-tools/tree/esm
[esm-readme]: https://github.com/stdlib-js/random-array-tools/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/random-array-tools/blob/main/branches.md

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/random-array-tools/main/LICENSE

[@stdlib/random/array/tools/binary-factory]: https://github.com/stdlib-js/random-array-tools-binary-factory

[@stdlib/random/array/tools/binary]: https://github.com/stdlib-js/random-array-tools-binary

[@stdlib/random/array/tools/nullary]: https://github.com/stdlib-js/random-array-tools-nullary

[@stdlib/random/array/tools/ternary-factory]: https://github.com/stdlib-js/random-array-tools-ternary-factory

[@stdlib/random/array/tools/ternary]: https://github.com/stdlib-js/random-array-tools-ternary

[@stdlib/random/array/tools/unary-factory]: https://github.com/stdlib-js/random-array-tools-unary-factory

[@stdlib/random/array/tools/unary]: https://github.com/stdlib-js/random-array-tools-unary