An alternative to Pearson R^2

There is a nice online example of four datasets that show exactly the same variable mean AND Pearson R^2 although they look quite different!

I show here an alternative R solution for the correlation ratio eta that may help if you are dealing with such data.

anscombe.R
|wj_anscombe.R|

CC-BY-NC Science Surf accessed 11.01.2026 VG Wort note save PDF