Stream Graph 
Description
Similar to the Stacked Area Chart, Stream Graphs (aka Theme River) show changes in data over time for each category. The values in a stream graph are displaced around a central time-based x-axis and show a flow that resembles a stream, hence the name. Stream graphs are good for displaying high volume data over many categories to show varying trends.
Minimum Requirements
2 dimensions
1 or more measures
Interactive Examples
Open in New WindowSimilar Charts
Stream Graph is similar to:
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Area Chart