the
> rm(list = ls())
at the top of your snippet makes me wonder if you had loaded any packages
(like XLConnect) that use Java in a previous part of the session? i
believe you must designate the ram allocation for java prior to loading any
java-related packages, and clearing out your objects will not act as a
reset..
i'm also not sure if the memory report shows what's currently allocated
or
the actual maximum.. i've had success with increasing the allocation on
windows in the past, even though the initial memory report said only
~120mb. be sure to execute the xlcFreeMemory() command after any big
runs-- it's the java-equivalent of gc()
also you should be able to use
options( java.parameters = "-Xmx4g" )
unless you love multiplying by 1024 :)
On Tue, Jun 11, 2013 at 3:21 AM, nevil amos <nevil.amos@gmail.com> wrote:
> I am using some r scripts to reformat a large data set that needs to be
> saved into xls format.
>
> I am getting the “Out of Memory Error (Java)” despite having set a large
> memory in the first line of the script ( on opening R and before loading
> any libraries)
>
> I am using R version 2.15.2 (2012-10-26) -- "Trick or Treat"
> Platform: x86_64-w64-mingw32/x64 (64-bit)
>
> On 64 Bit window 7 machine with 12G of ram.
>
> When I run the script to increase memory for jvm it is not increasing the
> memory but remaining at 244MB ( presumably the remainder of the initial
> 256mb once JVM is loaded...
>
> the script and out put is as follows
>
> > rm(list = ls())
> > options(java.parameters = "-Xmx4096m",stringsAsFactors=F)
> > library(XLConnect)
> Loading required package: XLConnectJars
> Loading required package: rJava
> XLConnect 0.2-3 by Mirai Solutions GmbH
> http://www.mirai-solutions.com ,
> http://miraisolutions.wordpress.com
> > print(xlcMemoryReport())
> Amount of free memory in the Java Virtual Machine (JVM): 244.0936 MB
>
>
> How do I increase the memory?
>
> thanks
>
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>
>
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>
>
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