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pyspark scaling

Innocent Iguana answered on February 27, 2024 Popularity 2/10 Helpfulness 8/10

answer pyspark scaling

pyspark scaling

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max_val = df.agg({'col_name': 'max'}).collect()[0][0]
min_val = df.agg({'col_name': 'min'}).collect()[0][0]
mean_val = df.agg({'col_name': 'mean'}).collect()[0][0]
std_val = df.agg({'col_name': 'stddev'}).collect()[0][0]
df = df.withColumn("min_max_scaled_col", (df['col_name'] - min_val) / (max_val - min_val))
df = df.withColumn("standard_scaled_col", (df['col_name'] - mean_val) / std_val)
df = df.withColumn("feature_scaled_col", df['col_name']  / max_val)
# Log transformation
from pyspark.sql.functions import log
df = df.withColumn('log_col', log(df['col_name']))

Popularity 2/10 Helpfulness 8/10 Language python

Source: Grepper

Tags: pyspark python scaling

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Contributed on Feb 27 2024

Innocent Iguana

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