This is a modified example building off http://bl.ocks.org/kerryrodden/7090426
This example shows how it is possible to use a D3 sunburst visualization (partition layout) with data that describes sequences of events.
I created this example in my work at Google, but it is not part of any Google product. It is covered by the Apache license:
Copyright 2013 Google Inc. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License"); > > you may not use this file except in compliance with the License.