The structure of the chapter makes more sense if the examples built on statsmodels R-like formulas; most importantly, you can specify models with and without interactions, which cannot be done in penguin. Also, the discussion of ANOVA as linear regression relies on the concepts of these formulas, and also requires statsmodels anyway.
The structure of the chapter makes more sense if the examples built on
statsmodelsR-like formulas; most importantly, you can specify models with and without interactions, which cannot be done inpenguin. Also, the discussion of ANOVA as linear regression relies on the concepts of these formulas, and also requiresstatsmodelsanyway.