from pyspark.sql.functions import col
for col_name in data7.columns:
data7 = data7.withColumn(col_name, col(col_name).cast(‘float’))
data7.printSchema()
from pyspark.sql.functions import col
for col_name in data7.columns:
data7 = data7.withColumn(col_name, col(col_name).cast(‘float’))
data7.printSchema()