Calculating weekly rental totals
Beyond filtering, you often need to aggregate data by time periods. To spot trends across July and compare week-over-week demand, calculate weekly rental totals.
polars is loaded as pl. The DataFrame bikes is available, sorted by time.
Bu egzersiz
Data Transformation with Polars
kursunun bir parçasıdırEgzersiz talimatları
- Group the data by week using
group_by_dynamic(). - Calculate the sum of
rentalsand name ittotal_rentals.
Uygulamalı interaktif egzersiz
Bu örnek kodu tamamlayarak bu egzersizi bitirin.
# Group the data by week
bikes.____("time", every="____").agg(
# Calculate the sum of rentals
pl.col("rentals").____().alias("____")
)