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R Next Statement

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The R Next statement is one of the most useful statements that control the flow of R loops. We generally use this R Next statement inside the For Loop and While Loop. While executing these loops, if the compiler finds the R Next statement inside them, it will stop the current loop iteration and starts the new iteration from the beginning.

For example, If we have 10 statements inside the loop, and we want to skip executing the second 5 statements (statement 6 — statement 10) when a certain condition is True. Otherwise, it has to execute all the 10 statements inside the loop. In this situation, we place the If Statement with a certain condition and within that place the R Next statement. If the condition is True, it will stop executing statements 6 to 10. Otherwise, it will execute statements 1 to 10.

R Next Statement Syntax

The syntax of the Next Statement in R Programming language is

Next

In this article, we would like to share two examples to display the working functionality of the R Next statement in both While Loop and For Loop.

R Next Statement in For Loop

In this program, we show how to use R Next Statement inside the For Loop with example. This program will display the Even and Odd numbers inside the given range.

# R Next Statement Example

number <- 1:20

for (val in number) {
  if (val %% 2 != 0)  {
    print(paste("ODD Number =  ", val, "(Skipped by Next Statement)"))
    next
  }
  print(paste("EVEN Number =  ", val))
}

OUTPUT

R Next Statement 1

ANALYSIS

Inside the for loop, we placed If Statement to test whether (val %% 2 != 0).

  • If this expression result is True, the R Next statement is executed. And the iteration will stop at that number without printing the other statement: print(paste(“EVEN Number = “, val)).
  • If the expression result is false, then it will skip the Next statement and print that number as output (In Our case Even Number).

Next Statement in R While Loop Example

In this program, we show how to use R Next Statement inside the While Loop with example. This program allows the user to enter any integer values. Then it will display all the values from 0 to a given number except 4 and 7.

# R Next Statement Example

number <- 0

while (number <= 10)  {
  if (number == 4 || number == 7)  {
    print(paste("Skipped by the Next Statement =  ", number))
    number = number + 1
    next
  }
  print(paste("Values are :  ", number))
  number = number + 1
}

OUTPUT

R Next Statement 2

ANALYSIS

Inside the While loop, we placed If Statement to test whether i is equal to 4 or 7.

  • If this condition is True, then the R Next statement executed, and the iteration will stop at that number without printing the other statement: print(paste(“Values are : “, number)). For better understanding, we placed print(paste(“Skipped by the Next Statement = “, number)) inside the If condition. So, whenever the iteration break, that value be printed from this statement.
  • If the condition is false, then it will skip the next statement and print that number as output (In Our case, 0,1,2,3,5,6,8,9,10).