Millions of Hoodies
Behold, a map! I took the results of the hoodies per person survey and MADE A MAP OF HOODIES IN SAN FRANCISCO.
For those tuning in late, here is the original question:
Click for navigable version with pop-ups. (This is the first map I made in TileMill/MapBox, so I basically don’t know what the hell I’m doing, but not to shabby, eh?)
Some hoods are hoodier than others! Sample size for some zips isn’t ideal, but NW SF is leading the pack. Fog trumps fashion, apparently.
(Note this just shows the hoodie decile with the highest value, though that got tricky with some of the zips with low response rates where a bunch of deciles were tied — in that case I tried to pick a reasonable value. (Note: thing I never expected to ever type: “hoodie decile”.))
Unsurprisingly, most responses came from the Mission, Noe, Castro and Hayes Valley. Here’s a heat map of the total responses by zip. (Sorry, don’t know how to make a color-coded legend in TileMill yet. I also haven’t figured out how to clone a map yet, so all you get is this lovely PNG for now.)
But not terribly surprising given Burrito Justice and Mission Mission readership demographics. A table of the response rate by ZIP code:
And a stacked area chart:
To answer @brittneyg’s original question: Can we safely extrapolate? We have a sample size of about 500 responses, with an average of about 4 hoodies per person. I am no Nate Silver, but I think it’s safe to say there are more hoodies than people in San Francisco, especially with that fat tail. If we run with a conservative estimate of 4 hoodies per person, we are looking at over 3 million hoodies in 49 square miles.