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R Programming By Example

You're reading from   R Programming By Example Practical, hands-on projects to help you get started with R

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Product type Paperback
Published in Dec 2017
Publisher Packt
ISBN-13 9781788292542
Length 470 pages
Edition 1st Edition
Languages
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Authors (2):
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Omar Trejo Navarro Omar Trejo Navarro
Author Profile Icon Omar Trejo Navarro
Omar Trejo Navarro
Omar Trejo Navarro Omar Trejo Navarro
Author Profile Icon Omar Trejo Navarro
Omar Trejo Navarro
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Toc

Table of Contents (12) Chapters Close

Preface 1. Introduction to R 2. Understanding Votes with Descriptive Statistics FREE CHAPTER 3. Predicting Votes with Linear Models 4. Simulating Sales Data and Working with Databases 5. Communicating Sales with Visualizations 6. Understanding Reviews with Text Analysis 7. Developing Automatic Presentations 8. Object-Oriented System to Track Cryptocurrencies 9. Implementing an Efficient Simple Moving Average 10. Adding Interactivity with Dashboards 11. Required Packages

Introducing three object models in R – S3, S4, and R6

Now that you have a basic understanding of general object-oriented concepts, we will dig into R's own object models. There are two main sources of confusion when doing object-oriented programming in R. Before we start developing code, we will explain what these sources of confusion are. After we do, we will develop a small example to illustrate inheritance, composition, polymorphism, and encapsulation in R's S3, S4, and R6 object models. The same example will be used for all three models so that the reader can pinpoint precise differences. Specifically, we will model a Square inheriting from a Rectangle, which is in turn composed with a Color.

The first source of confusion – various object models

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