flatmap python
array = [[1, 2], [3, 4]]
flatArray = [element for element in innerArray for innerArray in array]
# [1, 2, 3, 4]flatmap python
array = [[1, 2], [3, 4]]
flatArray = [element for element in innerArray for innerArray in array]
# [1, 2, 3, 4]flatmap in python
rdd2=rdd.flatMap(lambda x: x.split(" "))
for element in rdd2.collect():
print(element)flatmap in python
import pyspark
from pyspark.sql import SparkSession
spark = SparkSession.builder.appName('pyspark-by-examples').getOrCreate()
arrayData = [
('James',['Java','Scala'],{'hair':'black','eye':'brown'}),
('Michael',['Spark','Java',None],{'hair':'brown','eye':None}),
('Robert',['CSharp',''],{'hair':'red','eye':''}),
('Washington',None,None),
('Jefferson',['1','2'],{})
df = spark.createDataFrame(data=arrayData, schema = ['name','knownLanguages','properties'])
from pyspark.sql.functions import explode
df2 = df.select(df.name,explode(df.knownLanguages))
df2.printSchema()
df2.show()flatmap in python
data = ["Project Gutenberg’s",
"Alice’s Adventures in Wonderland",
"Project Gutenberg’s",
"Adventures in Wonderland",
"Project Gutenberg’s"]
rdd=spark.sparkContext.parallelize(data)
for element in rdd.collect():
print(element)flatten lists python
flat_list = []
for sublist in l:
for item in sublist:
flat_list.append(item)Copyright © 2021 Codeinu
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