printSchema.py

df.printSchema() # 스키마, 즉 데이터의 형태를 보여줍니다.

root
 |-- ID: integer (nullable = true)
 |-- Year_Birth: integer (nullable = true)
 |-- Education: string (nullable = true)
 |-- Marital_Status: string (nullable = true)
 |-- Income: integer (nullable = true)
 |-- Kidhome: integer (nullable = true)
 |-- Teenhome: integer (nullable = true)
 |-- Dt_Customer: string (nullable = true)
 |-- Recency: integer (nullable = true)
 |-- MntWines: integer (nullable = true)
 |-- MntFruits: integer (nullable = true)
 ... (생략)