This sample shows GDP growth of various countries for a few years in the polar and radar charts using the stacked area series.
In this example, you can see how to render and configure polar and radar charts with stacking area series. Switching between polar and radar series can be done using Series Type in the property panel.
Tooltip is enabled in this example. To see the tooltip in action, hover a point or tap on a point in touch enabled devices.
More information about the polar and radar series with a stacking area type chart can be found in this documentation section.