anychart.onDocumentReady(function () {
var table = anychart.data.table();
table.addData(get_dji_daily_short_data());
var mapping = table.mapAs({open: 1, high: 2, low: 3, close: 4, value: 4});
var chart = anychart.stock();
var amaIndicator = plot.ama(mapping);
amaIndicator.fastPeriod(4);
chart.title('Set fast indicator period');
chart.container('container');