[Rd] Vector binding on harddisk

Jeffrey Horner jeff.horner at vanderbilt.edu
Thu Feb 14 16:23:08 CET 2008

Paul Gilbert wrote on 02/14/2008 09:14 AM:
> _ wrote:
>> Hi all,
>> Using big vectors (more than 4GB) is unfortunately not possible under 
>> Windows or other OS's if not enough RAM exists.
> This is NOT true. It is not limited by RAM, but rather by RAM and swap 
> space.  With 500G hard disks at about $100, the more serious limitation 
> is a 32bit OS.  Speed is a different consideration, but I doubt that 
> taking over what the OS is suppose to do will be the real answer.

Umm... swap... yeah... My experience with any code that I write that 
needs to use swap is to reboot the machine and rewrite my code NOT to 
use swap.


> Paul
>> Could it be possible to implement an a new data type in R, like a 
>> vector, but instead holding the information in memory, the data lies on 
>> an file. If data is accessed, the data type vector get the information 
>> automatically from the file.
>> There is a package out there (named ff) but the accessed boundary have 
>> to be declared by the user this is a disadvantage.
>> Greetings.
>> ______________________________________________
>> R-devel at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
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