Pseudorandom number generator array creation function tools.
npm install @stdlib/random-array-toolsWe believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js. The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases. When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there. To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!
About stdlib...
[![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.
``bash`
npm install @stdlib/random-array-tools
`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.
`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
// Create a unary PRNG array:
rand = new ns.unary( exponential, dtypes, defaultDType );
x = rand.generate( 10, 0.5 );
// e.g., returns
// Create a nullary PRNG array:
rand = new ns.nullary( randn, dtypes, defaultDType );
x = rand.generate( 10 );
// e.g., returns
`
*
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]
---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. 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=v0.3.1
[test-url]: https://github.com/stdlib-js/random-array-tools/actions/workflows/test.yml?query=branch:v0.3.1
[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/badge/zulip-join_chat-brightgreen.svg
[chat-url]: https://stdlib.zulipchat.com
[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://www.npmjs.com/package/@stdlib/random-array-tools-binary-factory
[@stdlib/random/array/tools/binary]: https://www.npmjs.com/package/@stdlib/random-array-tools-binary
[@stdlib/random/array/tools/nullary]: https://www.npmjs.com/package/@stdlib/random-array-tools-nullary
[@stdlib/random/array/tools/ternary-factory]: https://www.npmjs.com/package/@stdlib/random-array-tools-ternary-factory
[@stdlib/random/array/tools/ternary]: https://www.npmjs.com/package/@stdlib/random-array-tools-ternary
[@stdlib/random/array/tools/unary-factory]: https://www.npmjs.com/package/@stdlib/random-array-tools-unary-factory
[@stdlib/random/array/tools/unary]: https://www.npmjs.com/package/@stdlib/random-array-tools-unary