[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.
Jeff
>
> 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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