R help - Dec 2009 - Is there lazy copy in R?

I'm wondering if lazy copy is available in R or not. For example, in
the following code, I'm wondering if the memory for y is allocated in
the 2nd line or the 3rd line. Is there a documentation for this?

x=1:10000
y=x
y[[10]]=5

use tracemem() to figure out... and read its documentation in detail.
b


On Dec 15, 2009, at 1:03 AM, Peng Yu wrote:
> I'm wondering if lazy copy is available in R or not. For example, in
> the following code, I'm wondering if the memory for y is allocated in
> the 2nd line or the 3rd line. Is there a documentation for this?
> 
> x=1:10000
> y=x
> y[[10]]=5
> 
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