[R] Question on closure (lexical scoping) and encapsulation

[Duncan Murdoch]

On 14 Jun 2000 19:35:21 +0200, Peter Dalgaard BSA
<p.dalgaard at biostat.ku.dk> wrote in message
<x2snugupwm.fsf at blueberry.kubism.ku.dk>:

>murdoch at stats.uwo.ca (Duncan Murdoch) writes:
>
>> Shouldn't the line "attributes(x) _ NULL" have applied only to x, the
>> local copy of .GlobalEnv?
>
>I don't think so. There is only one .GlobalEnv. Environments are not
>copied on assignment (or everything else breaks!). 

Okay, I understand.  I was thinking that .GlobalEnv had the semantics
of a pointer or a reference, it wasn't the environment itself.  

Duncan Murdoch
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