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Java Data Analysis

Java Data Analysis

By : John R. Hubbard
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Java Data Analysis

Java Data Analysis

By: John R. Hubbard

Overview of this book

Data analysis is a process of inspecting, cleansing, transforming, and modeling data with the aim of discovering useful information. Java is one of the most popular languages to perform your data analysis tasks. This book will help you learn the tools and techniques in Java to conduct data analysis without any hassle. After getting a quick overview of what data science is and the steps involved in the process, you’ll learn the statistical data analysis techniques and implement them using the popular Java APIs and libraries. Through practical examples, you will also learn the machine learning concepts such as classification and regression. In the process, you’ll familiarize yourself with tools such as Rapidminer and WEKA and see how these Java-based tools can be used effectively for analysis. You will also learn how to analyze text and other types of multimedia. Learn to work with relational, NoSQL, and time-series data. This book will also show you how you can utilize different Java-based libraries to create insightful and easy to understand plots and graphs. By the end of this book, you will have a solid understanding of the various data analysis techniques, and how to implement them using Java.
Table of Contents (14 chapters)
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13
Index

Java development with MongoDB


To access a MongoDB database from a Java program, you must first download the mongo-java-driver JAR files. You can get them from here:

http://central.maven.org/maven2/org/mongodb/mongo-java-driver/

Choose a recent, stable version; like, 3.4.2. Download the two JAR files: mongo-java-driver-3.4.2.jar and mongo-java-driver-3.4.2-javadoc.jar.

The program in Listing 10-2 shows how to use Java to access a Mongo database, in this case our friends database:

Listing 10-2. Java program to print collection documents

At lines 18-20, we instantiate the three objects necessary to access our relatives collection: a MongoClient object, a MongoDatabase object, and a MongoCollection object. The rest of the program iterated through all the documents in that collection, numbering and printing them in alphabetical order.

Line 23 instantiates a specialized Iterable object that uses the find() method on the relatives collection, accessing its documents according to the ordering specified...

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Java Data Analysis
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