Stream graph
A stream graph is a type of stacked area graph which is displaced around a central axis, resulting in a flowing and organic shape.
For more detailed samples and documentation check the API.
Data structure
The data of a stream graph is simply set as Y values and possibly X values. Each band in the stream graph represents a series, and the series are stacked against each other.
series: [{"name": "Finland","data": [0, 11, 4, 3, 6, 0, 0, 6]}, {"name": "Austria","data": [0, 3, 4, 2, 4, 0, 0, 8, 8]}, {"name": "Sweden","data": [0, 2, 5, 3, 7, 0, 0, 10, 4]}]
Labelling
Thanks to the series-label module, Highcharts allows applying labels in the best-fit position on top of the stream items, maximizing the legibility and quick perception of the data.