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Practical Data Analysis

You're reading from   Practical Data Analysis For small businesses, analyzing the information contained in their data using open source technology could be game-changing. All you need is some basic programming and mathematical skills to do just that.

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Product type Paperback
Published in Oct 2013
Publisher Packt
ISBN-13 9781783280995
Length 360 pages
Edition 1st Edition
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Author (1):
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Hector Cuesta Hector Cuesta
Author Profile Icon Hector Cuesta
Hector Cuesta
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Table of Contents (24) Chapters Close

Practical Data Analysis
Credits
Foreword
About the Author
Acknowledgments
About the Reviewers
www.PacktPub.com
Preface
1. Getting Started FREE CHAPTER 2. Working with Data 3. Data Visualization 4. Text Classification 5. Similarity-based Image Retrieval 6. Simulation of Stock Prices 7. Predicting Gold Prices 8. Working with Support Vector Machines 9. Modeling Infectious Disease with Cellular Automata 10. Working with Social Graphs 11. Sentiment Analysis of Twitter Data 12. Data Processing and Aggregation with MongoDB 13. Working with MapReduce 14. Online Data Analysis with IPython and Wakari Setting Up the Infrastructure Index

Representing graphs with Gephi


Gephi is an open source software for visualizing and analyzing large networks graphs which runs on Windows, Linux, and Mac OS X. We can freely download Gephi from its website listed as follows. For installation instructions please refer to the Appendix, Setting up the Infrastructure.

https://gephi.org/users/download/

To visualize your social network graph, you just need to open Gephi, click on the File menu and select Open then we just need to look up and select our file myFacebookNet.gdf and click on the Open button. Then, we can see our graph as shown in the following screenshot:

Tip

For complete reference documentation about Gephi, please refer to the link https://gephi.org/users/.

In the interface we can see the Context tab, which shows us the number of Nodes and Edges. We can show Node labels by clicking on the T icon in the bottom of the window. Finally, we can apply different layout algorithms by selecting in the ---Choose a layout dropdown in the Layout...

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