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Sams Teach Yourself Apache Spark™ in 24 Hours by Jeffrey Aven

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Hour 10. Working with the Spark API (Transformations and Actions)

What You’ll Learn in This Hour:

Image Data sampling with Spark

Image Additional Spark transformations and their usage

Image Additional Spark actions and their usage

Image Numerical RDD functions

You have seen and used the most common transformations already, including map, flatMap, filter, and reduceByKey ...

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