dc.js chart examples

https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.js

https://cdnjs.cloudflare.com/ajax/libs/crossfilter/1.3.12/crossfilter.js

https://cdnjs.cloudflare.com/ajax/libs/dc/2.0.0-beta.32/dc.js