M07 final Quiz Q4
Got the wrong answer but I don’t understand why as my code works (not so often 
). Adding shufflesplit does not really change the result anyway (cv = ShuffleSplit(n_splits=4, random_state=0))
numerical_columns= ["heart-rate", "cadence"]
data = cycling[numerical_columns]
OK I understood that I had to take the full data set but I believe i more precise presentation may help to avoid others to do the same mistake