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Contents
/**
* 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.
*
* @name average()
* @summary Average the values in a data set.
* @author [Allan Jardine](http://sprymedia.co.uk)
* @requires DataTables 1.10+
*
* @returns {Number} Calculated average
*
* @example
* // Average a column
* var table = $('#example').DataTable();
* table.column( 3 ).data().average();
*
* @example
* // Average two cells
* var table = $('#example').DataTable();
* table.cells( 0, [3,4] ).data().average();
*/
jQuery.fn.dataTable.Api.register( 'average()', function () {
var data = this.flatten();
var sum = data.reduce( function ( a, b ) {
return (a*1) + (b*1); // cast values in-case they are strings
}, 0 );
return sum / data.length;
} );
Version data entries
3 entries across 3 versions & 1 rubygems