Function Basics

Function Basics

A function in R is created with function(args) { body } and assigned to a name like any other value, since functions are first-class objects in R. Calling it looks just like calling any built-in function. Breaking logic into functions is the primary way to organize and reuse R code.

Note: Functions are ordinary values in R -- you can pass them as arguments to other functions, just like numbers or strings.

Example: Function Basics

greet <- function() {
  cat("Hello from a function!\n")
}

greet()
greet()