July 2017
Intermediate to advanced
796 pages
18h 55m
English
Content preview from Scala and Spark for Big Data Analytics
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Math/Statistical transformations
Mathematical or statistical transformations are transformation functions which handle some statistical functionality, and which usually apply some mathematical or statistical operation on existing RDDs, generating a new RDD. Sampling is a great example of this and is used often in Spark programs.
Examples of such transformations are:
- sampleByKey
- randomSplit
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