Tableau Sankey Diagram. This diagram will show the flow and relationship between two different elements. Sankeys is best used when you want to show a many to many mapping between two categorical dimensions.
Sankey diagram sankey diagrams are used to visualize the flow of one measure over multiple dimensions. Sankey on wikipedia cc pd there are several use cases that suitable to be visualized with a sankey diagram. This post sets out how to build a sankey diagram without any data prep before tableau.
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A sankey diagram is one that visualises relationships and flows between multiple elements typically they are better used with multiple dimensions to show the flow through a system. First of all i want to say this post is hugely indebted to olivier catherin and his post four years ago on building sankeys in tableau and jeff schaffer whose work olivier built off and countless others i probably don t even realise. The first sankey diagram by m. He uses tableau to draw sankey charts i prefer to call them relationship diagrams alluvial diagrams or even spaghetti diagrams.
