Thanks! I found, say, exp(x) causes 2 duplications whereas sum(x) 0
duplication. Is there any document to learn from about this?
(first time list user. sorry if anything about the posting procedure is
wrong)
On Wed, Mar 9, 2011 at 6:16 PM, Matt Shotwell wrote:
> On Wed, 2011-03-09 at 17:15 -090
On Wed, 2011-03-09 at 17:15 -0900, Zepu Zhang wrote:
> Hello list,
>
> I have the following scenario:
>
> f1 <- function(a)
> {
> # doing things; may need 'a', but does not change 'a'.
>
> g <- function(x)
> {
> sum(x + a)# Say. Use 'a'; does not change 'a'.
Th
