[R] how to modify variables of another frame (but not global)

[Henrik Bengtsson]

Hi, this has recently been discussed r-help. Please search the archive
for more details. The short summary is that you need to use assign()
or the <<- assignment operator depending on your exact problem.

Cheers

Henrik Bengtsson
Lund University

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Meinhard
Ploner
> Sent: den 23 mars 2004 12:18
> To: r-help at stat.math.ethz.ch
> Subject: [R] how to modify variables of another frame (but not
global)
> 
> 
> Hello!
> 
> Maybe "frame" is not the right term in this context.
> I explain my problem by example code:
> 
> fun2 <- function(objName, add) {
> 	## the object "objName" should be increased by "add",
> 	## but the evaluation should be done in the calling 
> function (here: 
> fun1)
> 	##    ...... what's the right code??
> }
> 
> fun1 <- function() {
> 	x <- 1
> 
> 	fun2("x", 10)		## should modify "x"
> 
> 	## now x should be 11, but only here and NOT globally!
> 	...
> }
> 
> 
> I would like to appreciate any solution!
> Thanks in advance
> 
> Meinhard Ploner
> 
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