[R] random forest using party package

Bhupendrasinh Thakre
Thu, 30 Aug 2012 17:39:48 -0000

Have you tried to check memory limit.
You may want to check
Memory.limit()

Although in most of the cases you can extend limit to 4000.

Also as David mentioned try to run only r and force stop others.

Best Regards,

Bhupendrasinh Thakre
Sent from my iPhone

On Aug 30, 2012, at 10:02 AM, David Winsemius <dwinsemius at comcast.net>
wrote:

>
> On Aug 30, 2012, at 4:02 AM, mushira wrote:
>
>> Hi all,
>> I am trying out with random forest on party package but am getting an
error
>> saying : cannot allocate vector of size 564." What would be the
problem? the
>> coding as below:
>>
>>> data.controls <- cforest_unbiased(ntree=1000, mtry=3)
>>> data.cforest <- cforest(class ~x1+x2+x3, data = Score,
>>> controls=data.controls)
>> Error: cannot allocate vector of size 564 Kb
>> my datasets is of  10 independent variables and 72,000 entries.
>> what should I proceed?
>
> You appear to have the machine resources to handle the problem, but
probably have too much other "stuff" (running programs, open windows,
etc)  in your system at this time that is occupying memory, this preventing R
from having contiguous memory that can hold your data object. You should exit R,
restart your computer, do not run any other applications, ... restart R and redo
this analysis.
>
> --
> David Winsemius, MD
> Alameda, CA, USA
>
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