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/*! © SpryMedia Ltd - datatables.net/license */
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(function( factory ){
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if ( typeof define === 'function' && define.amd ) {
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// AMD
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define( ['jquery', 'datatables.net'], function ( $ ) {
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return factory( $, window, document );
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} );
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}
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else if ( typeof exports === 'object' ) {
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// CommonJS
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var jq = require('jquery');
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var cjsRequires = function (root, $) {
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if ( ! $.fn.dataTable ) {
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require('datatables.net')(root, $);
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}
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};
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if (typeof window !== 'undefined') {
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module.exports = function (root, $) {
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if ( ! root ) {
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// CommonJS environments without a window global must pass a
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// root. This will give an error otherwise
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root = window;
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}
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if ( ! $ ) {
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$ = jq( root );
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}
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cjsRequires( root, $ );
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return factory( $, root, root.document );
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};
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}
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else {
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cjsRequires( window, jq );
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module.exports = factory( jq, window, window.document );
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}
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}
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else {
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// Browser
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factory( jQuery, window, document );
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}
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}(function( $, window, document, undefined ) {
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'use strict';
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var DataTable = $.fn.dataTable;
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/**
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* It can sometimes be useful to get the average of data in an API result set,
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* be it from a column, or a collection of cells. This method provides exactly
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* that ability.
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*
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* @name average()
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* @summary Average the values in a data set.
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* @author [Allan Jardine](http://sprymedia.co.uk)
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* @requires DataTables 1.10+
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*
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* @returns {Number} Calculated average
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*
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* @example
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* // Average a column
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* var table = $('#example').DataTable();
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* table.column( 3 ).data().average();
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*
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* @example
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* // Average two cells
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* var table = $('#example').DataTable();
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* table.cells( 0, [3,4] ).data().average();
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*/
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DataTable.Api.register('average()', function () {
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var data = this.flatten();
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var sum = data.reduce(function (a, b) {
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return a * 1 + b * 1; // cast values in-case they are strings
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}, 0);
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return sum / data.length;
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});
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return DataTable;
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}));
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