R function return

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A function is a set of statements organized together to perform a specific task. R has a large number of in-built functions and the user can create their own functions.

In R, a function is an object so the R interpreter is able to pass control to the function, along with arguments that may be necessary for the function to accomplish the actions.

The function in turn performs its task and returns control to the interpreter as well as any result which may be stored in other objects.

Function Definition

An R function is created by using the keyword function.

The basic syntax of an R function definition is as follows −

function_name <- function(arg_1, arg_2, ...) { Function body }

Function Components

The different parts of a function are −

• Function Name − This is the actual name of the function.

  Types of functions in r

• Types of functions in r
• How to call a function in r
• Function() in r
• Built-in functions in r
• R function ... argument

It is stored in R environment as an object with this name.

• Arguments − An argument is a placeholder. When a function is invoked, you pass a value to the argument. Arguments are optional; that is, a function may contain no argument

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