Replacing multiple patterns
The analytics team needs to calculate average product sizes, but the size column contains text values like "30ml" instead of numbers. You can replace multiple patterns at once to clean these values.
Este ejercicio forma parte del curso
Data Transformation with Polars
Instrucciones del ejercicio
- Replace
"30ml","50ml", and"100ml"in the"size"column with their numeric equivalents"30","50", and"100". - Cast the
"size"column to a 64-bit integer.
Ejercicio interactivo práctico
Prueba este ejercicio y completa el código de muestra.
# Replace size values with numeric strings
reviews.with_columns(
pl.col("size").str.____(["30ml","50ml","100ml"],["____","____","____"])
# Cast size column to integer
).____({"____":pl.Int64})