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.
Questo esercizio fa parte del corso
Data Transformation with Polars
Istruzioni dell'esercizio
- Extract the hour from the
timecolumn and name the new columnhour.
esercizio interattivo pratico
Prova questo esercizio completando questo codice di esempio.
# Extract the hour from the time column
bikes.with_columns(
pl.col("time").____.____().____("hour")
)