how to use recursion in r code example

Example 1: how to use recursion in r

mySum <- function(a){
  if (a == 0)
    return(0)
  
  return(a + mySum(a-1))
}

mySum(0)

Example 2: recursion function r

> recursive.factorial(0)
[1] 1
> recursive.factorial(5)
[1] 120
> recursive.factorial(7)
[1] 5040

Example 3: recursion function r

# Recursive function to find factorial
recursive.factorial <- function(x) {
if (x == 0)    return (1)
else           return (x * recursive.factorial(x-1))
}