It's a thing, though it seems to have an successor in "ridge plot": https://blog.revolutionanalytics.com/2017/07/joyplots.html https://blog.revolutionanalytics.

It's a thing, though it seems to have an successor in "ridge plot": https://blog.revolutionanalytics.com/2017/07/joyplots.html https://blog.revolutionanalytics.com/2017/07/joyplots.html