[R] understanding the FUNCTION function

[R. Michael Weylandt]

Simply return it like a function is supposed to:

fac <- function(x, loud = TRUE){
    a <- 1
    for(i in seq_len(x)) { # seq_len is faster and more robust
        a <- a * i
        if(loud) print(a)
    }
    return(a)
}

fac3 <- fac(3)

print(fac3) # As desired

Michael

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.
>
>
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