Converting column data types
You're building a beauty product recommendation app and need to analyze customer reviews. The dataset contains ratings from 1 to 5, but they're stored as floating-point numbers in the CSV file. To filter reviews by exact rating values, you'll need to convert them to whole numbers first.
polars is loaded as pl. The DataFrame reviews is available with columns including category, detail, review, rating, size, and price.
Diese Übung ist Teil des Kurses
Data Transformation with Polars
Anleitung zur Übung
- Convert the
ratingcolumn to integers.
Interaktive Übung
Vervollständige den Beispielcode, um diese Übung erfolgreich abzuschließen.
# Convert the rating column to integers
reviews.with_columns(
pl.____("rating").____(pl.Int64)
)