I wonder how much this is a measure of the diligence of various inspectors versus a measure of roaches being present. Something like this could be highly influenced by a sampling bias...
Nice idea but looks pretty random .. perhaps too little data ?
I thought the same thing... It needs a finer scale, and maybe some adjustment for density of restaurants, since that probably influences the frequency of health inspector calls.
It looks like there's a nice gradient along Long Island, though. :)
The copy doesn't make it clear enough, but we're actually doing our best to adjust for small samples with a little empirical Bayesian magic. As the number of samples (inspections) goes down, the result is closer to the mean for the whole city.
Doesn't this really track where the city health inspectors have been?
Yeah, would be interesting to see a map colored with overall health inspector visits and see if there's a correspondence.
Yeah, I tried clicking on the archives, hoping I could put something together myself, and the buttons don't work (I'm using Chrome). :(
So the answer is, everywhere. =)
i clicked expecting something like roach marking and tracking hack. Reading the comments it looks though that even marking and tracking of health inspectors would already be a start.