Isn’t that just the cutest? Code here.
My replication was greatly aided by a graphic that I call “the missing figure”, which I found on a website that has since disappeared. It helped me understand what Chernoff’s paper was talking about when it says the corner of the face:
Here are a few other ways to look at it:
Varying one parameter at a time:
Lots and lots of random faces:
Making that figure reminds me of a wonderfully vintage quote from Chernoff’s 1972 paper:
“At this time the cost of drawing these faces is about 20 to 25 cents
per face on the IBM 360-67 at Stanford University using the Calcomp
Plotter. Most of this cost is in the computing, and I believe that it
should be possible to reduce it considerably. ”
I’d pay $250 for a beautiful plot of that last figure. But it is nice that the price has come down.