If you are using namespaces see:
?assignInNamespace
On Dec 6, 2007 5:38 PM, Tao Shi <[EMAIL PROTECTED]> wrote:
>
> Hi list,
>
> Sorry for the vague title, but here is the scenario.
>
> I'm writing an R package, let's say, 'pkg1', which contains 3 functions: f1,
> f2, f3. f2 and f3 are helper functions for f1, i.e. f1 calls f2 which in
> turn calls f3.
>
> f1 <- function(…) {
> ….
> f2()
> …
> }
>
> f2 <- function(…){
> …
> f3(…)
> …
> }
>
> f3 <- function(...){
> ....
> }
>
> Then, I wrote a new version of f3 and I want to test it. With the old
> version of 'pkg1' already loaded into my R session, I tried just
> copy-and-paste the new 'f3' to R console and hope f1 will pick the new 'f3'
> up. It obviously didn't work. I know it's b/c the new f3 and old f3 are in
> different environments and when f1 is called, only old f3 is used. Then I
> tried to change the environment of new f3 to the same as the old f3's by
> calling:
>
> environment(f3) <- environment(pkg1:::f3)
>
> but it wasn't working either.
>
> So,
> 1) Could somebody help me to put all these into perspectives?
> 2) Is there an easier way to update f3 without rebuilding the package?
> (by that I mean, writing the new version of f3 in a way that I only need to
> copy-and-paste to R console and I'm good to go. I know it's kind of stupid
> but I'm curious to know)
>
> I'm using R-2.5.1, on WinXP.
>
> Many thanks,
>
> …Tao
>
>
> _________________________________________________________________
>
>
> 07
> ______________________________________________
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>
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