H method $3$

Exercise $2$

Prelude: Which city produces the most bagels by year? Montreal or New York?

This exercise has a few steps:

Write a function that, Tgiven a DataFrame, returns a DataFrame object with a new column that provides the maximum over the $($see question $2$ for an idea of how you will use your function$)$

Apply the function to the bagel dataset $($ bagel $),$ where the indice chosen is time

Produce a new DataFrame with a variable called Champion that gives the city that produced the most bagel by year. The fina columns: City, Year, BagelProduced and Champion

# Dataframe