项目作者: stdlib-js

项目描述 :
Truncated normal distribution.
高级语言: Makefile
项目地址: git://github.com/stdlib-js/stats-base-dists-truncated-normal.git
创建时间: 2021-06-15T17:33:50Z
项目社区:https://github.com/stdlib-js/stats-base-dists-truncated-normal

开源协议:Apache License 2.0

下载




About stdlib…

We 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!


Truncated Normal

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

Truncated normal distribution.



## Installation

bash npm install @stdlib/stats-base-dists-truncated-normal

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 truncatedNormal = require( '@stdlib/stats-base-dists-truncated-normal' );

#### truncatedNormal

Truncated normal distribution.

javascript var dist = truncatedNormal; // returns {...}

The namespace contains the following distribution functions:





- [pdf( x, a, b, mu, sigma )][@stdlib/stats/base/dists/truncated-normal/pdf]: truncated normal distribution probability density function (PDF).





The namespace contains the following functions for calculating distribution properties:





The namespace contains a constructor function for creating a [truncated normal][truncated-normal-distribution] distribution object.







## Examples





javascript var truncatedNormal = require( '@stdlib/stats-base-dists-truncated-normal' ); /* * Let's consider an example where we're modeling the heights of astronauts. * We'll use the truncated normal distribution to model this scenario, considering constraints on their minimum and maximum heights. * The distribution has parameters: a (minimum height), b (maximum height), mu (location parameter), and sigma (scale parameter). * In this example, we'll assume a = 150 (minimum height), b = 200 (maximum height), mu = 175 (location parameter), and sigma = 10 (scale parameter). */ var a = 150.0; var b = 200.0; var mu = 175.0; var sigma = 10.0; // Calculate the probability density function (PDF) for a height of 180 cm: console.log( truncatedNormal.pdf( 180, a, b, mu, sigma ) ); // => ~0.036



*

## 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].