[R] tree in tree package - Error: cannot allocate vector of size 2.0 Gb

Stephen Sefick sas0025 at auburn.edu
Fri May 31 23:38:35 CEST 2013

R version 3.0.0 (2013-04-03)
Platform: x86_64-redhat-linux-gnu (64-bit)

  [1] LC_CTYPE=en_US.utf8       LC_NUMERIC=C
  [3] LC_TIME=en_US.utf8        LC_COLLATE=en_US.utf8
  [5] LC_MONETARY=en_US.utf8    LC_MESSAGES=en_US.utf8
  [7] LC_PAPER=C                LC_NAME=C
  [9] LC_ADDRESS=C              LC_TELEPHONE=C

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

6GB RAM, intel core2 quad, Scientific Linux 6.4

I am using tree in the tree package.  and I get the following error:

Error: cannot allocate vector of size 2.0 Gb

shouldn't I be able to allocate more memory than 2GB?  I am sure that I 
am missing something.  Any help would be greatly appreciated.
kind regards,

Stephen Sefick
Auburn University
Biological Sciences
331 Funchess Hall
Auburn, Alabama
sas0025 at auburn.edu

Let's not spend our time and resources thinking about things that are so 
little or so large that all they really do for us is puff us up and make 
us feel like gods.  We are mammals, and have not exhausted the annoying 
little problems of being mammals.

                                 -K. Mullis

"A big computer, a complex algorithm and a long time does not equal 

                               -Robert Gentleman

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