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

Summary


In this chapter, we learned how to carry out the essential computations. We also learned how to import data from various foreign formats and then to export R objects and output suitable for other software. We also saw how to effectively manage an R session.

Now that we know how to create R and Python data objects, the next step is the visualization of such data. In the spirit of Chapter 1, Data Characteristics, we consider graph generation according to the nature of the data. Thus, we will see specialized graphs for data related to discrete as well as continuous random variables. There is also a distinction made for graphs required for univariate and multivariate data.

The next chapter must be pleasing on the eyes! Special emphasis is made on visualization techniques related to categorical data, which includes bar charts, dot charts, and spine plots. Multivariate data visualization is more than mere 3D plots and the R methods, such as pairs plots will be useful and will be taken there...