[R] How define global Variable?

[Uwe Ligges]

svenknueppel at reilich.net wrote:

> Hello,
> 
> I try to define a global variable.

You should not do that unless you really know why you want it this way. 
You probably want to read the R Language Definition manual.

Anyway, read ?assign if you want to proceed doing dangerous things.

Uwe Ligges



> My example:
> 
> R> a <- "old"
> R> test <- function () { a <- "new" }
> R> test()
> R> a # shoud be "new"
> 
> This doesn't work. I would like to modify the variable "a" in a
> procedure. How can I do that.
> 
> Thank you for helping.
> 
> Sven Knüppel (Germany-Berlin)
> 
> 
> 
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