Extracting the hour component
With the datetime properly parsed, you want to identify when bike demand peaks during the day. To compare rentals across different hours, you need to extract the hour component from each timestamp.
polars is loaded as pl. The DataFrame bikes is available with the time column already parsed as a Datetime.
Diese Übung ist Teil des Kurses
Data Transformation with Polars
Anleitung zur Übung
- Extract the hour from the
timecolumn and name the new columnhour.
Interaktive Übung
Vervollständige den Beispielcode, um diese Übung erfolgreich abzuschließen.
# Extract the hour from the time column
bikes.with_columns(
pl.col("time").____.____().____("hour")
)