For the past few months I’ve been working with Brett Mandel on creating a data visualization of Philadelphia’s General budget. We used a treepmap from D3 to show expenditures categorized by department, but lets you drill down to al 217,450 expenditures.
![Treemap of the Philadelphia General Budget](http://www.bengarvey.com/wp-content/uploads/2013/01/Screen-Shot-2013-01-23-at-9.27.51-AM-300x191.png)
We’re launching it today, so check it out and see what you can find. If you see anything interesting or find any errors, email me.
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