Return Value from R Function

In this article, we will discuss how to return value from a function in R Programming Language.

Method 1: R function with return value

In this scenario, we will use the return statement to return some value

Syntax:

function_name <- function(parameters) {      

statements

 return(value)

}

function_name(values)

Where,

• function_name is the name of the function
• parameters are the values that are passed as arguments
• return() is used to return a value
• function_name(values) is used to pass values to the parameters

Example: R program to perform addition operation with return value

Output:

[1] 30

Method 2: R function without using return

Here without using return function we will return a value. For this just passing the name of the variable that stores the value to returned works.

Syntax:

function_name <- function(parameters) {      

statements

value

}

function_name(values)

where,

• function_name is the name of the function
• parameters are the values that are passed as arguments
• value is the return value
• function_name(values) is used to pass values to the parameters

Example: R program to perform addition operation without using return function

Output:

[1] 30

Method 3: R function to return multiple values as a list

In this scenario, we will use the list() function in the return statement to return multiple values.

Syntax:

function_name <- function(parameters) {      

statements

return(list(value1,value2,.,value n)

}

function_name(values)

where,

• function_name is the name of the function
• parameters are the values that are passed as arguments
• return() function takes list of values as input
• function_name(values) is used to pass values to the parameters

Example: R program to perform arithmetic operations and return those values

Output:

[[1]]
[1] 30

[[2]]
[1] -10

[[3]]
[1] 200

[[4]]
[1] 2

gottumukkalabobby

Follow

Improve

Article Tags :

• R Language
• R Functions