The Sankey diagram
The Sankey diagram is a special type of visualization that is used to display flow among systems; many-to-many mapping between groups or set of groups; or to visualize energy, material, or cost transfers between processes. In the Sankey diagram, the width of the arrow is directly proportional to the quantity of the flow. Things that are being connected are called nodes and connections are called links. The Sankey diagram visualization is quite widely used to derive quick insights from the dataset. Google uses the Sankey diagram visualization to show the flow of traffic from one page to other pages of a website.
The Sankey diagram can be useful to show information such as:
Flow of money (money earned and spent)
Flow of energy from source to destination
Product manufacturing and sale lifecycle
Example
Let's now learn what information and insights can be generated from the Sankey diagram visualization over the data, and then, we will see how we can implement Sankey diagram in the...