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Scala and Spark for Big Data Analytics

You're reading from   Scala and Spark for Big Data Analytics Explore the concepts of functional programming, data streaming, and machine learning

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Product type Paperback
Published in Jul 2017
Publisher Packt
ISBN-13 9781785280849
Length 796 pages
Edition 1st Edition
Languages
Concepts
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Authors (2):
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Sridhar Alla Sridhar Alla
Author Profile Icon Sridhar Alla
Sridhar Alla
Md. Rezaul Karim Md. Rezaul Karim
Author Profile Icon Md. Rezaul Karim
Md. Rezaul Karim
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Toc

Table of Contents (19) Chapters Close

Preface 1. Introduction to Scala 2. Object-Oriented Scala FREE CHAPTER 3. Functional Programming Concepts 4. Collection APIs 5. Tackle Big Data – Spark Comes to the Party 6. Start Working with Spark – REPL and RDDs 7. Special RDD Operations 8. Introduce a Little Structure - Spark SQL 9. Stream Me Up, Scotty - Spark Streaming 10. Everything is Connected - GraphX 11. Learning Machine Learning - Spark MLlib and Spark ML 12. My Name is Bayes, Naive Bayes 13. Time to Put Some Order - Cluster Your Data with Spark MLlib 14. Text Analytics Using Spark ML 15. Spark Tuning 16. Time to Go to ClusterLand - Deploying Spark on a Cluster 17. Testing and Debugging Spark 18. PySpark and SparkR

Summary

Throughout this chapter, you have learned the basics of the Scala programming language, its features, and available editor. We have also briefly discussed Scala and its syntax. We demonstrated the installation and setting up guidelines for beginners who are new to Scala programming. Later in the chapter, you learned how to write, compile, and execute a sample Scala code. Moreover, a comparative discussion about Scala and Java provided for those who are from a Java background. Here's a short comparison between Scala and Python:

Scala is statically typed, but Python is dynamically typed. Scala (mostly) embraces the functional programming paradigm, while Python doesn't. Python has a unique syntax that lacks most of the parentheses, while Scala (almost) always requires them. In Scala, almost everything is an expression; while this isn't true in Python. However, there are a few points on the upside that are seemingly convoluted. The type complexity is mostly optional. Secondly, according to the documentation provided by https://stackoverflow.com/questions/1065720/what-is-the-purpose-of-scala-programming-language/5828684#5828684, Scala compiler is like free testing and documentation as cyclomatic complexity and lines of code escalate. When aptly implemented Scala can perform otherwise all but impossible operations behind consistent and coherent APIs.

In next the chapter, we will discuss how to improve our experience on the basics to know how Scala implements the object oriented paradigm to allow building modular software systems.

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