Howdy,
On Aug 6, 2009, at 4:11 PM, Ivo Shterev wrote:
Hi,
The intention is that after executing f2, the value of i to become 1.
f1 = function(i){i = 1}
f2 = function(n){ i = length(n)
f1(i)
print(i)}
i.e. f2 should print 1, not length(n).
Yeah, you can using parent.frame()'s and such:
f1 <- function(i) assign('i', 10, envir=parent.frame())
f2 <- function(n) {
i <- length(n)
f1(i)
print(i)
}
R> f2(1:20)
[1] 10
Honestly, this just smells like a *really* bad idea, though ... just
have f1() return a value that you use in f2.
-steve
--
Steve Lianoglou
Graduate Student: Computational Systems Biology
| Memorial Sloan-Kettering Cancer Center
| Weill Medical College of Cornell University
Contact Info: http://cbio.mskcc.org/~lianos/contact
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