Add Multiple total to Datatable Dynamic (Añadiendo multiples totales a datatable Dinamicamente)

danielandres.feo

Tabla_colegio = $('#tabla_reporte_colegios').DataTable({
    'footerCallback': function(row, data, start, end, display) {
        var api = this.api(),
            data;
        var intVal = function(i) {
            return typeof i === 'string' ?
                i.replace(/[\$,]/g, '') * 1 :
                typeof i === 'number' ?
                i : 0;
        };
        // Columns array to totalize
        $.each([1, 2, 3], function(index, value) {
            total = api
                .column(value)
                .data()
                .reduce(function(a, b) {
                    return intVal(a) + intVal(b);
                }, 0);

            // Total over this page
            pageTotal = api
                .column(value, {
                    page: 'current'
                })
                .data()
                .reduce(function(a, b) {
                    return intVal(a) + intVal(b);
                }, 0);

            // Update footer
            $(api.column(value).footer()).html(
                'Filtro:' + pageTotal + ' ( ' + total + ' Total)'
            );
        });
    }

});