Book Image

Hands-On Data Analysis with Scala

By : Rajesh Gupta
Book Image

Hands-On Data Analysis with Scala

By: Rajesh Gupta

Overview of this book

Efficient business decisions with an accurate sense of business data helps in delivering better performance across products and services. This book helps you to leverage the popular Scala libraries and tools for performing core data analysis tasks with ease. The book begins with a quick overview of the building blocks of a standard data analysis process. You will learn to perform basic tasks like Extraction, Staging, Validation, Cleaning, and Shaping of datasets. You will later deep dive into the data exploration and visualization areas of the data analysis life cycle. You will make use of popular Scala libraries like Saddle, Breeze, Vegas, and PredictionIO for processing your datasets. You will learn statistical methods for deriving meaningful insights from data. You will also learn to create applications for Apache Spark 2.x on complex data analysis, in real-time. You will discover traditional machine learning techniques for doing data analysis. Furthermore, you will also be introduced to neural networks and deep learning from a data analysis standpoint. By the end of this book, you will be capable of handling large sets of structured and unstructured data, perform exploratory analysis, and building efficient Scala applications for discovering and delivering insights
Table of Contents (14 chapters)
Free Chapter
Section 1: Scala and Data Analysis Life Cycle
Section 2: Advanced Data Analysis and Machine Learning
Section 3: Real-Time Data Analysis and Scalability

Spark setup and overview

Let's begin with the Spark setup on our local machine. Please refer to the Apache Spark official site ( for details on downloading and installing Spark. At the time of this writing, Spark Version 2.4.0 is the latest version, so we will download and install this version. The following is a screenshot the Spark download web page:

Please note the following pieces of information when selecting an appropriate download image:

  • Spark release: Choose the latest stable release (2.4.0 at the time of this writing).
  • Package type: Choose the Pre-built for Apache Hadoop 2.7 and later option.
  • Download link: Clicking on this link will take you to the Apache Download Mirrors site. Select the site most suitable for you. Generally, the suggested mirror site works for most cases.

The following is another screenshot of the Apache...