Dear all,

I am trying to apply kmeans clusterring on a data file (size is about 300
Mb)

I read this file using

x=read.table('file path' , sep=" ")

then i do kmeans(x,25)

but the process stops after two minutes with an error :

Error: cannot allocate vector of size 907.3 Mb

when i read the archive i notice that the best solution is to use a 64bit
OS.

"Error messages beginning cannot allocate vector of size indicate a failure
to obtain memory, either because the size exceeded the address-space limit
for a process or, more likely, because the system was unable to provide the
memory. Note that on a 32-bit OS there may well be enough free memory
available, but not a large enough contiguous block of address space into
which to map it. "

the problem that I have two machines with two OS (32bit and 64bit) and when
i used the 64bit OS the same error remains.

Thank you if you have any suggestions to me and excuse me because i am a
newbie.

Here the default information for the 64bit os:

> sessionInfo()
R version 2.7.1 (2008-06-23)
x86_64-redhat-linux-gnu

> gc()
         used (Mb) gc trigger (Mb) max used (Mb)
Ncells 137955  7.4     350000 18.7   350000 18.7
Vcells 141455  1.1     786432  6.0   601347  4.6

I tried also to start R using the options to control the available memory
and the result still the same. or maybe i don't assign the correct values.


Thank you in advance.

-- 
Rami BATAL

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