[Rd] built-in NAMED(obj) from within R
simon.urbanek at r-project.org
Sat Nov 10 02:59:46 CET 2012
On Nov 9, 2012, at 8:00 AM, Hadley Wickham wrote:
>>> The goal is to ascertain whether a copy of an object has been made.
>> Then :
>> One demonstration of using both together is here :
> Note that tracemem detects duplications (in a technical R sense), not
> copies - i.e.
> x <- 1:10
> x <- 11L
> although all the individual elements are copied,
No elements are copied - this is a subassignment and it is done in place hence there is neither duplication nor copying - simply the value of the 11th element is changed.
> the vector is not duplicated. This confused me at first, so I thought I'd point it out.
I'm not quite sure what is your distinction you are trying to make there...
> RStudio / Rice University
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