Pembuatan Fitur

Rekayasa Fitur dengan PySpark

John Hogue

Lead Data Scientist

Mengapa membuat fitur baru?

Generasi

Mengalikan

Menjumlahkan

Mengurangkan

Membagi

Plot Model Linear Panjang

Plot Model Linear Lebar

Perkalian

# Creating a new feature, area by multiplying
df = df.withColumn('TSQFT', (df['WIDTH'] * df['LENGTH']))

Plot Model Linear Luas

# Sum two columns
df = df.withColumn('TSQFT', (df['SQFTBELOWGROUND'] + df['SQFTABOVEGROUND']))

# Divide two columns
df = df.withColumn('PRICEPERTSQFT', (df['LISTPRICE'] / df['TSQFT']))

# Difference two columns
df = df.withColumn('DAYSONMARKET', datediff('OFFMARKETDATE', 'LISTDATE'))

Automasi Fitur

Gambar futuristik

Rekayasa Fitur dengan PySpark