For the last case with the list:
> x <- 1:2; y = list(x)[rep(1, 4)]
> .Internal(inspect(y))
@102bbe090 19 VECSXP g0c3 [MARK,NAM(2)] (len=4, tl=0)
@106119628 13 INTSXP g0c1 [MARK] (len=2, tl=0) 1,2
@106119628 13 INTSXP g0c1 [MARK] (len=2, tl=0) 1,2
@106119628 13 INTSXP g0c1 [MARK] (len=2, tl=
Thank you for a very thorough analysis. It seems whether or not an
operation makes a full copy really depends on the specific operation,
and that it is not safe to assume that because I know something is
unchanged there will be no copy. For example, in your last case only
one element of a list wa
Hi Ross --
On 01/23/2014 05:53 PM, Ross Boylan wrote:
[Apologies if a duplicate; we are having mail problems.]
I am trying to understand the circumstances under which R makes a copy
of an object, as opposed to simply referring to it. I'm talking about
what goes on under the hood, not the user
Thank you for the help and fast response. I'm going to look into getting
some time on the unix machines.
On Sep 10, 2012 10:28 AM, "Prof Brian Ripley [via R]" <
ml-node+s789695n4642670...@n4.nabble.com> wrote:
On 10/09/2012 16:13, chrisk wrote:
> I having issues with my memory size in R for Win
On 10/09/2012 16:13, chrisk wrote:
I having issues with my memory size in R for Windows. I have implemented the
3gb switch for Windows 7 32 bit with 8gb of memory, only 4gb is available
for use due to 32 bit limitations. 512Mb is taken by the shared video card,
the memory limit is 2559mb yet I
On 29/10/2010 12:46 PM, DM2010 wrote:
Dear R Users
I have two questions about how R makes use of memory on a Windows computer.
On my machine certain R jobs seem to stop with messages such as...
"Error: cannot allocate vector of size 215.0 Mb"
...when, according to Windows Task Manager, there a
Allan Engelhardt writes:
> ### Method 2
> ## Setup
> file <- paste("/proc", Sys.getpid(), "stat", sep = "/")
> what <- vector("list", 44); what[[23]] <- integer(0)
> ## In your logging routine
> vsz <- scan(file, what = what, quiet = TRUE)[[23]]/1024
> cat("Virtual size: ", vsz, "\n", sep = "")
How about asking the operating system, e.g.
### Method 1
## Setup
cmd <- paste("ps -o vsz", Sys.getpid())
## In your logging routine
z <- system(cmd, intern = TRUE)
cat("Virtual size: ", z[2], "\n", sep = "")
### Method 2
## Setup
file <- paste("/proc", Sys.getpid(), "stat", sep = "/")
what <- v
jim holtman writes:
> ?memory.size
Only works on Windows. I guess I should have specified; this is on Linux.
Thanks,
Johann
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?memory.size
On Fri, Aug 6, 2010 at 1:00 PM, Johann Hibschman wrote:
> Is there any way to get the current memory used by R without running
> gc()?
>
> I'd like to include the memory usage in logging output, but calling gc()
> to get that information takes long enough to be noticeable (~ 6 s with
On Wed, 14 Jan 2009, Albrecht, Dr. Stefan (AIM SE) wrote:
Dear R-help list,
I am just trying to increase my memory for R, but for some reason I
cannot really increase the memory size as much as I would like. I
have 3 GB of RAM on a Windows XP (R 2.8.1)
memory.size()
[1] 879.4667
memory
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