Chaining multiple conditions

You can also chain multiple conditions together. The product team wants to categorize products as "Large", "Medium", or "Small" based on their size for shipping optimization.

Latihan ini adalah bagian dari kursus

Data Transformation with Polars

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Petunjuk latihan

Check if the "size" column equals "100ml" and return "Large".
Check if the "size" column equals "50ml" and return "Medium".
Return "Small" for all other sizes and name the column "size_category".

Latihan interaktif praktis

Cobalah latihan ini dengan menyelesaikan kode contoh berikut.

reviews.with_columns(
  	# Check if size is "100ml" and return "Large"
    pl.when(pl.col("____") == "____").then(pl.lit("____"))
  
    # Check if size is "50ml" and return "Medium"
    .____(pl.col("size") == "____").then(pl.lit("____"))
  
    # Return "Small" for other sizes
    .____(pl.lit("____"))
    .alias("size_category")
)

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