Data warning: this page is 37-40 MB (depending on the cache) even with an adblocker.
I wish that articles like this would release some of the data; even if it was just their reduced 16 dimensions, I'd love to redo their clustering but optimize compactness somehow.
So basically divide the city by income bracket?
65 dimensions, not including income, but so many things in life do end up correlating to wealth.