Book Image

Scala Data Analysis Cookbook

By : Arun Manivannan
Book Image

Scala Data Analysis Cookbook

By: Arun Manivannan

Overview of this book

This book will introduce you to the most popular Scala tools, libraries, and frameworks through practical recipes around loading, manipulating, and preparing your data. It will also help you explore and make sense of your data using stunning and insightfulvisualizations, and machine learning toolkits. Starting with introductory recipes on utilizing the Breeze and Spark libraries, get to grips withhow to import data from a host of possible sources and how to pre-process numerical, string, and date data. Next, you’ll get an understanding of concepts that will help you visualize data using the Apache Zeppelin and Bokeh bindings in Scala, enabling exploratory data analysis. iscover how to program quintessential machine learning algorithms using Spark ML library. Work through steps to scale your machine learning models and deploy them into a standalone cluster, EC2, YARN, and Mesos. Finally dip into the powerful options presented by Spark Streaming, and machine learning for streaming data, as well as utilizing Spark GraphX.

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Scala Data Analysis Cookbook
Arun Manivannan
Oct, 2015 | 254 pages
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Table of Contents (14 chapters)
Scala Data Analysis Cookbook
Scala Data Analysis Cookbook
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Started with Breeze
Getting Started with Breeze
Introduction
Getting Breeze – the linear algebra library
Working with vectors
Working with matrices
Vectors and matrices with randomly distributed values
Reading and writing CSV files
2
Getting Started with Apache Spark DataFrames
Getting Started with Apache Spark DataFrames
Introduction
Getting Apache Spark
Creating a DataFrame from CSV
Manipulating DataFrames
Creating a DataFrame from Scala case classes
3
Loading and Preparing Data – DataFrame
Loading and Preparing Data – DataFrame
Introduction
Loading more than 22 features into classes
Loading JSON into DataFrames
Storing data as Parquet files
Using the Avro data model in Parquet
Loading from RDBMS
Preparing data in Dataframes
4
Data Visualization
Data Visualization
Introduction
Visualizing using Zeppelin
Creating scatter plots with Bokeh-Scala
Creating a time series MultiPlot with Bokeh-Scala
5
Learning from Data
Learning from Data
Introduction
Supervised and unsupervised learning
Gradient descent
Predicting continuous values using linear regression
Binary classification using LogisticRegression and SVM
Binary classification using LogisticRegression with Pipeline API
Clustering using K-means
Feature reduction using principal component analysis
6
Scaling Up
Scaling Up
Introduction
Building the Uber JAR
Submitting jobs to the Spark cluster (local)
Running the Spark Standalone cluster on EC2
Running the Spark Job on Mesos (local)
Running the Spark Job on YARN (local)
7
Going Further
Going Further
Introduction
Using Spark Streaming to subscribe to a Twitter stream
Using Spark as an ETL tool
Using StreamingLogisticRegression to classify a Twitter stream using Kafka as a training stream
Using GraphX to analyze Twitter data
Index
Index

Scala Data Analysis Cookbook

Copyright © 2015 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

First published: October 2015

Production reference: 1261015

Published by Packt Publishing Ltd.

Livery Place

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Birmingham B3 2PB, UK.

ISBN 978-1-78439-674-9

www.packtpub.com

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