Bump charts get renamed as SLOPEGRAPHS

Charlie Park has a nice post describing Tufte’s slopegraphs (old chart, new name).

Kaiser Fung likes these a lot; he’s been calling them Bump charts.

I introduce these to my undergrads when we discuss the paired t test.

Tip from kottke.org.
Update (16 July).  James Kierstead publishes an R implementation.