[R] 64 bit version for linux and build huge matrix

Rich Shepard rshepard at appl-ecosys.com
Thu Mar 15 21:19:26 CET 2012

On Fri, 16 Mar 2012, Shengyun Peng wrote:

> I downloaded R from http://cran.cnr.berkeley.edu/, with the linux version.
> But after compile, I don't know how to start 64 bit R, as there is only
> one R executable under bin folder, not alike windows version which have
> two executables.

   If your system has a 64-bit version of the distribution installed then
that's how applications are built. You start it by typing 'R' (without the
quotes) on the command line. Linux is not Microsoft.

> Other than that, I want to build a matrix 65536 rows by 65536 columns, but
> the system tells me: Error in matrix(0, 65536, 65536) : too many elements
> specified. So, I want to know if there's anything I can do to achieve that
> and that's one reason I need 64 bit R.

   How much memory do you have installed?


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