Statistical Analysis with R

The digital world we live in has given companies and people access to staggering amounts of data, and anyone who can make use of that to drive valuable insights stands to benefit. The ability to work with large amounts of data is becoming a standard requirement for countless jobs across multiple industries.

R, probably the most well-known language for data analysis, has been used for years due to its robust statistical functionality, outstanding graphing ability, and extensibility through packages.

This interactive module will get us up to speed with R and assumes no prior knowledge of it. We'll start with the very basics and work our way up to advanced concepts like exception handling. By the time we're done, we'll be able to write detailed, useful code in R.

Learn R from Scratch

# What are `switch` statements?

A `switch` statement is a unique conditional statement that allows a **variable** to be tested for equality against a list of values. Each value is called a `case`. 

> The variable is checked for each case.

`switch` Statements basically provide decision making capability: choose an option corresponding to the expression. The options are chosen based on two criteria of the options:

* **Based on Index** – Choose the option whose index corresponds to the value of the expression.

* **Based on Matching Value** - Choose the option which is an exact match of the expression.

The code flow of switch statement can be represented using the following illustration.

In this lesson, we will learn all about switch statements, their use, and syntax.

Getting Started

Variables

Exploring R Objects

R Operators and Notation

Conditional Statements

Loops

Functions

Input/Output

Exception Handling

Classes

Fun Challenges

Conclusion

switch Statements

What are `switch` statements?