anychart.onDocumentReady(function () {
var dataTable = anychart.data.table();
dataTable.addData(get_dji_daily_short_data());
var mapping = dataTable.mapAs({value: 1});
var chart = anychart.stock();
chart.scrollerGrouping({maxVisiblePoints: 100});
var scroller = chart.scroller();
var grouping = chart.grouping();
var levels = grouping.levels();
chart.title('The current grouping levels is ' + levels[0].unit);
chart.container('container');