Sankey diagrams are a specific type of flow diagram, in which the width of the paths represent some quantity. These multidimensional visualizations help you to see flow and discover category relationships with a different perspective. If you were to ask me what my favorite visualization was, I'd most likely say: "The Sankey!"
Sankey diagrams show metric flows and category relationships. You can use a Sankey diagram to visualize relationship density and trends.
Use Cases for the Sankey Diagram
Use a Sankey diagram to visualize activity patterns such as:
To build a Sankey diagram, you need to have data that includes source and target categories (dimensions) and a metric that you are tracking between them. Luckily, with the Sankey diagrams, these can be completely different types of dimensions and hierarchies, or they can be source and (multiple) target(s) to visualize paths.
Think about it like this: you have one metric/measure of interest (like volume) and multiple dimensions to look at. In contrast to a scatter plot where you have one dimension and multiple metrics/measures.
How to Build/Download a Sankey Diagram
I couldn't find how the data has to be structured. Other Sankey diagrams often have an array structure where each index represents objects and the last index represents a measure. Like this: [Germany, USA, 2999]
Could someone tell me the necessary data structure for this sankey extension? Why are there two dimensions?
Hello @joe_warbington ,
I found this example very interesting and would like to look how it works.
Hovever the links in section: How to Build/Download a Sankey Diagram are no longer valid for me.
Is it possible to updated them, or recommend how I could open and play this application ?