I think the author have provided detailed content, so we would just follow and digest his teaching for understanding this part.

Feel free to checkout the original tutorials for details info! :)

(Optional)Step Snap 1: [Prepare Data - FHVHV]

This is just for reference if you want to prepare the For-hire vehicles high volume (FHVHV) data quickly:

!wget <https://github.com/DataTalksClub/nyc-tlc-data/releases/download/fhvhv/fhvhv_tripdata_2021-01.csv.gz>
!gzip -d fhvhv_tripdata_2021-01.csv.gz
!wc -l fhvhv_tripdata_2021-01.csv