anychart.onDocumentReady(function () {
var chart = anychart.sparkline([50, 15, 20, 60, 20, 70, 30]);
chart.seriesType('column');
chart.minFill(['#FAFAFA', '#757575'], 0.5, 0.5, null, 0.9, 0.3, 0.81);
chart.title({text: 'Set radial gradient fill for the minimum point', orientation: 'top'});
chart.container('container');