not able to use the title-numneric type sorting

ketanrampuria

this is the code i have put for my data table. title-numeric type sorting does not seem to work.
https://www.datatables.net/plug-ins/sorting/title-numeric

var actualDataTable = $("#pilotAssignmentEligibilityData").dataTable(
{

            "bScrollY": true,
            "sScrollY": tabHgt,
            "aoColumns": response.aoColumnDefs,
            "columnDefs": [{ type: 'title-numeric', targets: 0 }],
            "bPaginate": false,
            "bFilter": false,
            "bInfo": false,
            "bProcessing": false,
            "bJQueryUI": true,
            "bScrollCollapse": false,
            "bScrollX": true,
            "sScrollX": "100%",
            "bAutoWidth": false,
        });

i have to do title-numeric sorting on 4th column of my datatable, rest all the columns need to be sorted based on the default sorting mechanism of datatable.