Simple Statistics

A JavaScript implementation of descriptive, regression, and inference statistics.

Implemented in literate JavaScript with no dependencies, designed to work in all modern browsers (including IE) as well as in node.js.

• 📗 API Documentation
• 📈 Benchmarks
• 😗 A list of other statistics libraries

Installation

• I'm using Node.js, Webpack, Browserify, Rollup, or another module bundler, and install packages from npm.
  • First, install the simple-statistics module, using npm install simple-statistics, then include the code with require or import:
  • I use the require function to use modules in my project. (most likely)
    • When you use require, you have the freedom to assign the module to any variable name you want, but you need to specify the module's name exactly: in this case, 'simple-statistics'. The require method returns an object with all of the module's methods attached to it.
      

      var ss = require('simple-statistics')

  • I use import to use modules in my project. I'm probably using Babel, @std/esm, Webpack, or Rollup.
    • Import all functions under the ss object:

      import * as ss from 'simple-statistics'

      Include a specific named export:

      import {min} from 'simple-statistics'

      Simple statistics has only named exports for ES6.
• I'm not using a module bundler. I'm writing a web page, and want to include simple-statistics using a script tag.
  • I want to support all browsers
    • When you use simple-statistics from a script tag, you don't get to choose the variable name it is assigned to: simple-statistics will always become available globally as the variable ss. You can reassign this variable to another name if you want to, but doing so is optional.

      <script src='https://unpkg.com/simple-statistics@6.1.0/dist/simple-statistics.min.js' />

      • https://unpkg.com/simple-statistics@6.1.0/dist/simple-statistics.min.js
  • I want to use ES6 modules in a browser and I'm willing to only support new browsers to do it
    • This module works great with the ?module query parameter of unpkg. If you specify type='module' in your script tag, you'll be able to import simple-statistics directly - through index.js and with true ES6 import syntax and behavior.

      <script type='module'>
      import {min} from "https://unpkg.com/simple-statistics@6.1.0/index.js?module"
      console.log(min([1, 2, 3]))
      </script>

      This feature is still experimental in unpkg and very bleeding-edge.