Book Image

Clojure Data Analysis Cookbook

By : Eric Rochester
Book Image

Clojure Data Analysis Cookbook

By: Eric Rochester

Overview of this book

<p>Data is everywhere and it's increasingly important to be able to gain insights that we can act on. Using Clojure for data analysis and collection, this book will show you how to gain fresh insights and perspectives from your data with an essential collection of practical, structured recipes.<br /><br />"The Clojure Data Analysis Cookbook" presents recipes for every stage of the data analysis process. Whether scraping data off a web page, performing data mining, or creating graphs for the web, this book has something for the task at hand.<br /><br />You'll learn how to acquire data, clean it up, and transform it into useful graphs which can then be analyzed and published to the Internet. Coverage includes advanced topics like processing data concurrently, applying powerful statistical techniques like Bayesian modelling, and even data mining algorithms such as K-means clustering, neural networks, and association rules.</p>
Table of Contents (18 chapters)
Clojure Data Analysis Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Chapter 5. Distributed Data Processing with Cascalog

In this chapter, we will cover:

  • Distributed processing with Cascalog and Hadoop

  • Querying data with Cascalog

  • Distributing data with Apache HDFS

  • Parsing CSV files with Cascalog

  • Executing complex queries with Cascalog

  • Aggregating data with Cascalog

  • Defining new Cascalog operators

  • Composing Cascalog queries

  • Handling errors in Cascalog workflows

  • Transforming data with Cascalog

  • Executing Cascalog queries in the Cloud with Pallet