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map and flatMap transformations in Spark RDDs

Plain Petrel answered on October 11, 2024 Popularity 1/10 Helpfulness 1/10

answer map and flatMap transformations in Spark RDDs

map and flatMap transformations in Spark RDDs

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# Example of map
rdd = spark.sparkContext.parallelize([1, 2, 3])
mapped_rdd = rdd.map(lambda x: x * 2)
print(mapped_rdd.collect())  # Output: [2, 4, 6]
# Example of flatMap
flat_mapped_rdd = rdd.flatMap(lambda x: [x, x * 2])
print(flat_mapped_rdd.collect())  # Output: [1, 2, 2, 4, 3, 6]
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Popularity 1/10 Helpfulness 1/10 Language python

Source: www.datacamp.com

Tags: flatmap map python

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Contributed on Oct 11 2024

Plain Petrel

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map and flatMap transformations in Spark RDDs

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