# compute-stdev

> Computes the sample standard deviation over an array of values.

Latest version **1.0.0** (published 2014-09-06) · 0 weekly downloads

## Install

```sh
npm install compute-stdev
pnpm add compute-stdev
yarn add compute-stdev
bun add compute-stdev
```

## Health

**Score 23/100 (F)** — status: abandoned.

Positive: has types package; no vulnerabilities; high quality score.

Warnings: low downloads; no esm support.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 1.0.0 |
| Published | 2014-09-06 |
| First published | 2014-09-06 |
| Weekly downloads | 0 |
| TypeScript types | separate (@types/compute-stdev) |
| Module format | CommonJS |
| Dependencies | 0 |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Author | Athan Reines |
| Maintainers | kgryte |
| Keywords | compute.io, compute, computation, statistics, stats, standard deviation, stdev, variance |

## Links

- npm: https://www.npmjs.com/package/compute-stdev
- Repository: https://github.com/compute-io/stdev
- Issues: https://github.com/compute-io/stdev/issues
- npm.io page: https://npm.io/package/compute-stdev

## Recent versions

- 1.0.0 (latest) — 2014-09-06
- 0.0.0 — 2014-09-06

## README

stdev
===
[![NPM version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url] [![Coverage Status][coveralls-image]][coveralls-url] [![Dependencies][dependencies-image]][dependencies-url]

> Computes the sample standard deviation over an array of values.


## Installation

``` bash
$ npm install compute-stdev
```

For use in the browser, use [browserify](https://github.com/substack/node-browserify).


## Usage

To use the module,

``` javascript
var stdev = require( 'compute-stdev' );
```


## Examples

``` javascript
var data = new Array( 1000 );

for ( var i = 0; i < data.length; i++ ) {
	data[ i ] = Math.random()*100;
}

console.log( stdev( data ) );
```

To run the example code from the top-level application directory,

``` bash
$ node ./examples/index.js
```


## Tests

### Unit

Unit tests use the [Mocha](http://visionmedia.github.io/mocha) test framework with [Chai](http://chaijs.com) assertions. To run the tests, execute the following command in the top-level application directory:

``` bash
$ make test
```

All new feature development should have corresponding unit tests to validate correct functionality.


### Test Coverage

This repository uses [Istanbul](https://github.com/gotwarlost/istanbul) as its code coverage tool. To generate a test coverage report, execute the following command in the top-level application directory:

``` bash
$ make test-cov
```

Istanbul creates a `./reports/coverage` directory. To access an HTML version of the report,

``` bash
$ open reports/coverage/lcov-report/index.html
```


## License

[MIT license](http://opensource.org/licenses/MIT). 


---
## Copyright

Copyright &copy; 2014. Athan Reines.


[npm-image]: http://img.shields.io/npm/v/compute-stdev.svg
[npm-url]: https://npmjs.org/package/compute-stdev

[travis-image]: http://img.shields.io/travis/compute-io/stdev/master.svg
[travis-url]: https://travis-ci.org/compute-io/stdev

[coveralls-image]: https://img.shields.io/coveralls/compute-io/stdev/master.svg
[coveralls-url]: https://coveralls.io/r/compute-io/stdev?branch=master

[dependencies-image]: http://img.shields.io/david/compute-io/stdev.svg
[dependencies-url]: https://david-dm.org/compute-io/stdev

[dev-dependencies-image]: http://img.shields.io/david/dev/compute-io/stdev.svg
[dev-dependencies-url]: https://david-dm.org/dev/compute-io/stdev

[github-issues-image]: http://img.shields.io/github/issues/compute-io/stdev.svg
[github-issues-url]: https://github.com/compute-io/stdev/issues

---
_Source: https://npm.io/package/compute-stdev · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._