l1.addEntry(0.82d);
l1.addEntry(1.5d);
l1.addEntry(3.4d);
l1.addEntry(4d);
@SuppressWarnings("unchecked")
JQPlot chart4 =
new JQPlot("chart4", new ListModel<SimpleNumberSeries<Double>>(Arrays.asList(l1)));
chart4.getOptions().getAxes().getYaxis().setAutoscale(true).getTickOptions()
.setFormatString("%.3f");
add(chart4);
}