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
<Kurs>Data Transformation with Polars</Kurs>Übungsanweisungen
- Extract the hour from the
timecolumn and name the new columnhour.
Interaktive praktische Übung
Versuche dich an dieser Übung, indem du diesen Beispielcode vervollständigst.
# Extract the hour from the time column
bikes.with_columns(
pl.col("time").____.____().____("hour")
)