Practical Data Analysis Cookbook

Over 60 practical recipes on data exploration and analysis

• Clean dirty data, extract accurate information, and explore the relationships between variables
• Forecast the output of an electric plant and the water flow of American rivers using pandas, NumPy, Statsmodels, and scikitlearn
• Find and extract the most important features from your dataset using the most efficient Python libraries

If you are a beginner or intermediatelevel professional who is looking to solve your daytoday, analytical problems with Python, this book is for you. Even with no prior programming and data analytics experience, you will be able to finish each recipe and learn while doing so.

• Read, clean, transform, and store your data usng Pandas and OpenRefine
• Understand your data and explore the relationships between variables using Pandas and D3.js
• Explore a variety of techniques to classify and cluster outbound marketing campaign calls data of a bank using Pandas, mlpy, NumPy, and Statsmodels
• Reduce the dimensionality of your dataset and extract the most important features with pandas, NumPy, and mlpy
• Predict the output of a power plant with regression models and forecast water flow of American rivers with time series methods using pandas, NumPy, Statsmodels, and scikitlearn
• Explore social interactions and identify fraudulent activities with graph theory concepts using NetworkX and Gephi
• Scrape Internet web pages using urlib and BeautifulSoup and get to know natural language processing techniques to classify movies ratings using NLTK
• Study simulation techniques in an example of a gas station with agentbased modeling

Data analysis is the process of systematically applying statistical and logical techniques to describe and illustrate, condense and recap, and evaluate data. Its importance has been most visible in the sector of information and communication technologies. It is an employee asset in almost all economy sectors.

This book provides a rich set of independent recipes that dive into the world of data analytics and modeling using a variety of approaches, tools, and algorithms. You will learn the basics of data handling and modeling, and will build your skills gradually toward more advanced topics such as simulations, raw text processing, social interactions analysis, and more.

First, you will learn some easytofollow practical techniques on how to read, write, clean, reformat, explore, and understand your data—arguably the most timeconsuming (and the most important) tasks for any data scientist.

In the second section, different independent recipes delve into intermediate topics such as classification, clustering, predicting, and more. With the help of these easytofollow recipes, you will also learn techniques that can easily be expanded to solve other reallife problems such as building recommendation engines or predictive models.

In the third section, you will explore more advanced topics: from the field of graph theory through natural language processing, discrete choice modeling to simulations. You will also get to expand your knowledge on identifying fraud origin with the help of a graph, scrape Internet websites, and classify movies based on their reviews.

By the end of this book, you will be able to efficiently use the vast array of tools that the Python environment has to offer.

This handson recipe guide is divided into three sections that tackle and overcome realworld data modeling problems faced by data analysts/scientist in their everyday work. Each independent recipe is written in an easytofollow and stepbystep fashion.