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by dangets 4307 days ago
I don't think it should be too difficult (not saying that d3 doesn't have a learning curve). There are some examples on the d3 gallery that would probably be close.

http://bl.ocks.org/mbostock/4060606 http://www.trulia.com/trends/2011/09/house-hunter-by-day-not... http://prcweb.co.uk/circularheatchart/ http://bl.ocks.org/tjdecke/5558084

Heck if you point me to a stock dataset I could probably code up a simple example that you could tweak. (no promises though ;)