html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var data1 = [166, 43, -79, -46, 84, NaN];

    var data2 = [50, -25, 30, 28, 83, NaN];

​

    var chart = anychart.waterfall();

​

    chart.addSeries(data1, data2);

​

    // Get series count in loop.

    for (var i = 0; i < chart.getSeriesCount(); i++) {

        chart.getSeriesAt(i).name((i + 1) + ' Series');

    }

​

    chart.legend({itemsSourceMode: 'default'});

    chart.title('Get and use series count');

    chart.container('container');

    chart.draw();

});