[R] understanding the FUNCTION function

[Sarah Goslee]

In R, the preferred method is to assign the result to a new object:
fac <- function(x) {
  a<-1
  for(i in 1:x){
    a<-a*i
    print(a)
  }
  a # need to explicitly state what the function should return
}

myresult <- fac(5)

myresult


Sarah


On Thu, Apr 26, 2012 at 2:16 PM, michaelyb <cel81009759 at gmail.com> wrote:
> Ista,
>
> Since you seem to know your stuff very well, how would you get 120 out of a
> function that gives you the factorial of 5, without using factorial(5)?
>
>> Meanwhile, look at this example instead:
>> fac<-function(x){a<-1
>>                 for(i in 1:x){
>>                 a<-a*i
>>                 print(a)}}
>
> gives you 120, but you cannot access it after the end of execution.
>
>


-- 
Sarah Goslee
http://www.functionaldiversity.org