How to use where loops in R?

Recipe Objective

Loops are an important feature in R-language. It helps us to iterate through vectors, lists and process required functions to its elements. They help us to implement complex logic which requires a repetitive step. There are three different loops in R:

1. For loops
2. While loops
3. Repeat loops

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Each of these loops has its own use cases. We will focus on While loops in this recipe by demonstrating an example

While loops are used when a block of code needs to be executed until a certain boolean expression specified is FALSE.

Syntax:

while (boolean_expression){ // Block of code that needs to be executed }

Example: To print the cubes of all the numbers starting from 2 to 6

# Creating an iterator a = 2 ​ while(a<=6){ print(a^3) #increasing the iterator by one a=a+1 }

[1] 8
[1] 27
[1] 64
[1] 125
[1] 216