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This is a tumbling log of things and thoughts that pass my way.
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"The above area circles were prepared by someone at JP Morgan. I don’t know, you might have heard of ‘em. The circles are based on data from Bloomberg and meant to show the change in market value from 2007 to 2009. The problem here is that the creator sized circles by diameter instead of area, so the difference looks ginormous. I mean, the value change is significant but not that big.
[…]
Circles are 2-dimensional shapes. You can’t use them and expect people to compare two circles by diameter, a 1-D metric. Sorry, JP Morgan person. You fail."
Fail: Area Circles on Wall Street | FlowingData. Silly JP Morgan person.
