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average()

Average the values in a data set.

It can sometimes be useful to get the average of data in an API result set, be it from a column, or a collection of cells. This method provides exactly that ability.

Use

This plug-in can be obtained and used in multiple different ways.

Browser

This plug-in is available on the DataTables CDN:

JS

The plug-in will then automatically register itself against a global DataTables instance. This file can also be used if you are using an AMD loader such as Require.js.

Note that if you are using multiple plug-ins, it can be beneficial in terms of performance to combine the plug-ins into a single file and host it on your own server, rather than making multiple requests to the DataTables CDN.

NPM

The plug-ins are all available on NPM (which can also be used with Yarn or any other Javascript package manager) as part of the datatables.net-plugins package. To use this plug-in, first install the plug-ins package:

npm install datatables.net-plugins

Then import datatables.net, any other DataTables extensions you need, plus the plug-in:

import DataTable from 'datatables.net';
import 'datatables.net-plugins/api/average().mjs';

Examples

// Average a column
  var table = new DataTable('#example')
  table.column( 3 ).data().average();

// Average two cells
  var table = new DataTable('#example')
  table.cells( 0, [3,4] ).data().average();

Version control

If you have any ideas for how this plug-in can be improved, or spot anything that is in error, it is available on GitHub and pull requests are very welcome!