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Stream / ThemeRiver Chart

The ThemeRiver or Stream chart is a type of flow graph that shows changes of events (themes) over time.

Key implementation details

We use SmoothedXLinesSeries for the series. We set fillOpacity on it to 1 to make it an area chart. Then we process the data to create valueYField and openValueYField data fields holding ajdusted values for the stacking effect.

Related tutorials

Demo source