Polar Stacked Area
Info - How to setup Vizzu
In HTML, create a placeholder element that will contain the rendered
chart.
<html>
 <body>
  <div id="myVizzu">
  </div>
 </body>
</html>
In JavaScript, initialize and configure the chart:
import Vizzu from 'https://cdn.jsdelivr.net/npm/vizzu@0.16/dist/vizzu.min.js'
import {
    data_8
} from 'https://lib.vizzuhq.com/0.16/assets/data/chart_types_eu.js'
let chart = new Vizzu('myVizzu')
chart.initializing
chart.animate({
    data_8
})- set the Split parameter to true
chart.animate({
    config: {
        "channels": {
            "x": "Year",
            "y": {
                "set": [
                    "Country",
                    "Value 2 (+)"
                ],
                "range": {
                    "min": "-20%"
                }
            },
            "color": "Country"
        },
        "geometry": "area",
        "coordSystem": "polar"
    }
});
chart.animate({
    config: {
        "split": true
    }
});
chart.feature('tooltip', true);