R Loops

In this tutorial, we will learn about different types of loops in R. We will cover the basics of for, while, and repeat loops.

What is a Loop

A loop is a control flow statement that allows code to be executed repeatedly based on a condition.

R supports three types of loops: for loops, while loops, and repeat loops.

A for loop is used when the number of iterations is known before entering the loop. The syntax for the for loop is:

for (variable in sequence) {
    # Code block to be executed
}

A while loop is used when the number of iterations is not known beforehand. The syntax for the while loop is:

while (condition) {
    # Code block to be executed
}

A repeat loop is used to execute a code block repeatedly until a condition is met. The syntax for the repeat loop is:

repeat {
    # Code block to be executed
    if (condition) {
        break
    }
}

for (i in 1:10) {
    cat(i, ' ')
}

1 2 3 4 5 6 7 8 9 10

i <- 1
while (i <= 5) {
    cat(i, ' ')
    i <- i + 1
}

1 2 3 4 5

i <- 1
repeat {
    cat(i, ' ')
    i <- i + 1
    if (i > 3) {
        break
    }
}

1 2 3