Hello: 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. 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. Thanks, Shengyun [[alternative HTML version deleted]]
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? Rich
Hi, On Thu, Mar 15, 2012 at 4:02 PM, Shengyun Peng <psy106616 at 163.com> wrote:> Hello: > > > 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.Are you sure it's not running 64bit already? What is the value of `.Machine$sizeof.pointer`? If it's 8, then your work is done. -steve -- Steve Lianoglou Graduate Student: Computational Systems Biology ?| Memorial Sloan-Kettering Cancer Center ?| Weill Medical College of Cornell University Contact Info: http://cbio.mskcc.org/~lianos/contact