A Sankey diagram enables you to perform path
analytics. Path analytics displays flows of data from one event (value) to another as a series
of paths.
A path in a Sankey diagram
represents a distinct sequence of events. Each path in the diagram
consists of one or more transactions. A transaction is a sequence
of events that are associated with a specific transaction identifier
value.
For example, if your data contains the activity of visitors to a website, then your
transaction identifier might be the unique
session identifier for each visitor. The events in your data might be the individual pages on the website
that the visitor accessed. In this example, each transaction is the sequence of pages
that were accessed by a specific visitor, and each path is a sequence of pages that
contains all of the transactions that follow that sequence.