However, a bit of subsequent investigation revealed that Protovis has been developed very much in the spirit of Leland Wilkinson’s book The Grammar of Graphics, which I am currently reading, so I have decided to experiment with it here on the blog.
As a tentative first step, I have reproduced the CDO chart from a recent post ranting about bubble charts. At first glance, it is essentially identical to the chart I produced using R. However, if you hover your mouse over the points on the chart, you should see the figures appear! It is by no means perfect (for example, it would probably look better if single points appeared, rather than every point on the chart and it could do with a legend), but it’s a start and I will persevere.
[pvis src=”http://stubbornmule.net/scripts/pv/test.js” img=”http://stubbornmule.net/blog/wp-content/CDO-circles.png” height=”125px”]CDO deals: total and recycled[/pvis]
Getting Protovis to work on the blog was a little fiddly, so for anyone interested, I have also written up a quick guide to using Protovis on a WordPress blog.
UPDATE: Reports in so far indicate that the chart is not working in Google Chrome or on mobile devices. More work to do it would seem!