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)

The use of the if…else conditional operator

The general structure of an if…else statement is as follows:

    if (conditional_expression) {
} else {

The general structure is clearly intuitive to understand. If the conditional expression produces a result that is TRUE, then it will execute the body_of_task section, and if the conditional expression is FALSE, then it will execute the body_of_task2 section. In this recipe, you will implement a small task to implement the if…else statement.

Getting ready

Unlike the ifelse function, if…else works for conditioning on a scalar-valued input and output. The ifelse function takes the input as a vector and produces...