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並前往https://www.analyticsvidhya.com/blog/2021/10/a-comprehensive-guide-to-apache-spark-rdd-and-pyspark/

A Comprehensive Guide to Apache Spark RDD and PySpark

How to Convert PySpark RDD to DataFrame? ... Create a flat map (flatMap(line ⇒ line.split(“ ”)). to separate each line into words.

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