Explore the basics of the R language, such as variables, operators, loops, and functions, and solve a few challenges.

Become an R Developer

This module will get us up to speed on R programming and assumes no prior knowledge of the language. We’ll start with the basics of R, such as variables, data types, operators, etc., and work our way up to advanced concepts like functions, classes, and exception handling. We’ll also go through some challenges to enhance our hands-on experience. By the time we’re done, we’ll be able to write detailed, useful code in R.

Learn R from Scratch

# Syntax of a `repeat` loop

The syntax for `repeat` loop in R language:

```r
repeat 
{
  statement
}
```
> In the statement block, we must use the `break` statement to exit the loop.

The `repeat` loop runs as long as it is not broken explicitly. 

myNumber <- 1

repeat
{
  print(myNumber)
  myNumber = myNumber + 1

  if(myNumber > 10)
    break
}

Here, the `break` statement is executed when the conditional statement `myNumber > 10` evaluates to `TRUE`. 

> **Note:** The **conditional statement** we are using in this loop is opposite to that we used for the `while` loop. This is because the `while` loop can be interpreted as _loop until the condition returns_ `FALSE`. 

However, the `repeat` loop can be interpreted as _keep looping_, and if the **breaking condition** returns `TRUE`, only then, break the loop. 

`Break` statement can be used with other loops as well to explicitly break them. For example, we can modify the original `while` loop that used to print numbers from $1$ to $10$ to print until $5$ using `break` statement.

We will be learning all about the repeat statement in this lesson.

repeat Loops

Syntax of a repeat loop

Syntax of a `repeat` loop