Related...
Rule of thumb:
Pre-allocate your object of the *correct* data type, if you know the
final dimensions.
/Henrik
On Thu, Dec 10, 2009 at 8:26 AM, Peng Yu <pengyu...@gmail.com> wrote:
> I'm wondering where I can find the detailed descriptions on R memory
> management. Understanding this could help me understand the runtime of
> R program. For example, depending on how memory is allocated (either
> allocate a chuck of memory that is more than necessary for the current
> use, or allocate the memory that is just enough for the current use),
> the performance of the following program could be very different.
> Could somebody let me know some good references?
>
> unsorted_index=NULL
> for(i in 1:100) {
> unsorted_index=c(unsorted_index, i)
> }
> unsorted_index
>
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
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