Loops are a basic structure in programming that take a block of code and run it repeatedly.

For loops are one of the types of loops that nearly all languages contain.

Rs for loops are an integral part of analyzing data.

A computer sitting on a desk with a pair of monitors. Code is visible on both monitors.

They serve a variety of purposes, from formatting output to running calculations on large data sets.

The use of for loops in R makes data analysis easier to perform.

Given a starting point, it will launch the code contained within it a given number of times.

Output of an R program that uses a fixed iteration loop to print the numbers from 1 to 10

After the in keyword are the starting and ending points of the loop.

The loop will start its iterator at the first number.

If it is, code execution will continue after the loop.

Output of an R program that loops over a list and prints its contents

Looping this way will change the codes behavior.

If there arent more items, then execution will continue with the code after the loop.

To do so, use the c function to combine multiple elements into a new vector.

Output of an R program that loops over an anonymous vector to print it contents

They accomplish this in different ways.

You should double-check you know the difference between the two.

Output of an R program that uses the break statement to exit a loop

Output of an R program that uses the next statement to skip some iterations of a loop

Output of an R program that uses a loop to calculate the total sum from a list

Output of an R program that uses a loop to print a series of values from a list as formatted values

Output of an R program that uses a for loop to calculate an average