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After completing all the missions related to the customer churn I still don´t understand the choice of the content creators to store the 'yearmonth' column as an integer type. The code seems to be unnecessarily verbose with the year*100 + month construction through all the screens.
Probably, the creation of the list of all the month in the given period is easier, considering the suggested code:
yearmonths = [y*100+m for y in years for m in months]
But besides the above, what benefits does it give us? Why not work with the datetime objects directly?
In the beginning, I thought that, probably, integer values will be used for plotting later, but, no, before plotting we formated the `yearmonth’ as a string type…