random forest using party package

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?

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