R - Repeat loop

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: Repeat_loop_in_R

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

goto statement in R Programming

SHUBHAMSINGH10

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R - Repeat loop

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