R Repeat loop (original) (raw)

Last Updated : 21 Apr, 2020

Repeat loop in R is used to iterate over a block of code multiple number of times. And also it executes the same code again and again until a break statement is found. Repeat loop, unlike other loops, doesn't use a condition to exit the loop instead it looks for a break statement that executes if a condition within the loop body results to be true. An infinite loop in R can be created very easily with the help of the Repeat loop. The keyword used for the repeat loop is 'repeat'.Syntax:

repeat { commands if(condition) { break } }

Flowchart: Example 1:

Python3 1== `

R program to illustrate repeat loop

result <- c("Hello World") i <- 1

test expression

repeat {

print(result)

update expression

i <- i + 1

Breaking condition

if(i >5) { break } }

`

Output:

[1] "Hello World" [1] "Hello World" [1] "Hello World" [1] "Hello World" [1] "Hello World"

Example 2:

Python3 1== `

R program to illustrate repeat loop

result <- 1 i <- 1

test expression

repeat {

print(result)

update expression

i <- i + 1 result = result + 1

Breaking condition

if(i > 5) { break } }

`

Output:

[1] 1 [1] 2 [1] 3 [1] 4 [1] 5