anychart.onDocumentReady(function () {
var chart = anychart.line();
chart.line([1, -4, 5, 7, 3, 8, 5]);
chart.lineMarker(0, {value: 4, stroke: "#F44336", axis: chart.xAxis()});
chart.title("Set chart line marker parameters as object by index.");
chart.container("container");