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.
Questo esercizio fa parte del corso
Data Transformation with Polars
Istruzioni dell'esercizio
- Convert the
ratingcolumn to integers.
esercizio interattivo pratico
Prova questo esercizio completando questo codice di esempio.
# Convert the rating column to integers
reviews.with_columns(
pl.____("rating").____(pl.Int64)
)