Book Image

Statistical Application Development with R and Python - Second Edition

Book Image

Statistical Application Development with R and Python - Second Edition

Overview of this book

Statistical Analysis involves collecting and examining data to describe the nature of data that needs to be analyzed. It helps you explore the relation of data and build models to make better decisions. This book explores statistical concepts along with R and Python, which are well integrated from the word go. Almost every concept has an R code going with it which exemplifies the strength of R and applications. The R code and programs have been further strengthened with equivalent Python programs. Thus, you will first understand the data characteristics, descriptive statistics and the exploratory attitude, which will give you firm footing of data analysis. Statistical inference will complete the technical footing of statistical methods. Regression, linear, logistic modeling, and CART, builds the essential toolkit. This will help you complete complex problems in the real world. You will begin with a brief understanding of the nature of data and end with modern and advanced statistical models like CART. Every step is taken with DATA and R code, and further enhanced by Python. The data analysis journey begins with exploratory analysis, which is more than simple, descriptive, data summaries. You will then apply linear regression modeling, and end with logistic regression, CART, and spatial statistics. By the end of this book you will be able to apply your statistical learning in major domains at work or in your projects.
Table of Contents (19 chapters)
Statistical Application Development with R and Python - Second Edition
Credits
About the Author
Acknowledgment
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
Index

Chapter 2. Import/Export Data

The main goals of this chapter are to familiarize the reader with the various classes of objects in R, help the reader extract data from various popular formats, connect R with popular databases such as MySQL, and finally, the best export options of the R output. The main purpose is that the practitioner frequently has data available in a fixed format, and sometimes the dataset is available in popular database systems. This chapter helps the reader to extract data from various sources, and also recommends the export options of the R output.

We will begin by gaining a better understanding of the various formats in which R stores the data. Updated information about the import/export options is maintained on http://cran.r-project.org/doc/manuals/R-data.html. On the Python front, we will be using the Jupyter Notebook throughout the book. Here, we will deal with the basic operations and give indications to import the data from external sources. Python session management...