Book Image

Modern R Programming Cookbook

By : Jaynal Abedin
Book Image

Modern R Programming Cookbook

By: Jaynal Abedin

Overview of this book

R is a powerful tool for statistics, graphics, and statistical programming. It is used by tens of thousands of people daily to perform serious statistical analyses. It is a free, open source system whose implementation is the collective accomplishment of many intelligent, hard-working people. There are more than 2,000 available add-ons, and R is a serious rival to all commercial statistical packages. The objective of this book is to show how to work with different programming aspects of R. The emerging R developers and data science could have very good programming knowledge but might have limited understanding about R syntax and semantics. Our book will be a platform develop practical solution out of real world problem in scalable fashion and with very good understanding. You will work with various versions of R libraries that are essential for scalable data science solutions. You will learn to work with Input / Output issues when working with relatively larger dataset. At the end of this book readers will also learn how to work with databases from within R and also what and how meta programming helps in developing applications.
Table of Contents (10 chapters)

Using mutate for data processing

Creating a new variable is one of the most important tasks in data pre-processing. Creating a new variable and getting it attached to the new variable with existing data frame is called mutation in the dplyr framework. The verb mutate() is used to achieve this task. In this recipe, you will create a new variable from an existing data frame using the mutate() verb. Also, you will see the base R counter example using the transform() function.

Getting ready

The task of this recipe is to create a new indicator variable that indicates whether the flight has more than 30 minutes delay, or not. The USAairlineData2016 dataset will be used for this recipe. The newly created variable should be attached...