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.
Cet exercice fait partie du cours
Data Transformation with Polars
Instructions
- Convert the
ratingcolumn to integers.
Exercice interactif pratique
Essayez cet exercice en complétant cet exemple de code.
# Convert the rating column to integers
reviews.with_columns(
pl.____("rating").____(pl.Int64)
)