[LibWhacker]

Wow, I'm the statistician and I didn't even know they were called choropleths, lol! If you like that one, check out some of their other maps. Very interesting.

[TXnMA]

I've learned a new word today...

Wow, I'm the statistician and I didn't even know they were called choropleths, lol!

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Then the day hasn't been a total waste... :-)

IIRC, I picked up the term from Edward R. Tufte's superb little book, The Visual Display of Quantitative Information.