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PYSPARK • LESSON 157

Applying Vectorized Pandas UDFs in withColumn()

How do we apply our vectorized sales tax Pandas UDF to compute a taxed_amount column?

Expert2 Minutes860 XP
🤔 THE QUESTION

How do we apply our vectorized sales tax Pandas UDF to compute a taxed_amount column?

💡 WHAT IS IT?

Passing a Column argument into the pandas_udf within withColumn(), executing in vectorized batches.

🎯 WHAT IS IT USED FOR?

Applying vectorized financial models and pre-trained Python scoring algorithms across millions of rows.

💻 EXAMPLE
from pyspark.sql.functions import col

df = df.withColumn("taxed_amount", add_sales_tax(col("gross_amount")))

🎯 Mission Objectives

Practice typing production-grade PySpark code for Applying Vectorized Pandas UDFs in withColumn().

  • Apply pandas_udf in withColumn
  • Pass gross_amount column reference
  • Execute vectorized batch computation