[R] save() with 64 bit and 32 bit R

Duncan Murdoch murdoch.duncan at gmail.com
Wed Nov 3 11:22:08 CET 2010

Andrew Collier wrote:
> hi,
> i have been using a 64 bit desktop machine to process a whole lot of
> data which i have then subsequently used save() to store. i am now
> wanting to use this data on my laptop machine, which is a 32 bit
> install. i suppose that i should not be surprised that the 64 bit data
> files do not open on my 32 bit machine! does anyone have a smart idea as
> to how these data can be reformatted for 32 bits? unfortunately the data
> processing that i did on the 64 bit machine took just under 20 days to
> complete, so i am not very keen to just throw away this data and begin
> again on the 32 bit machine.
> sorry, in retrospect this all seems rather idiotic, but i assumed that
> the data stored by save() would be compatible between 64 bit and 32 bit
> (there is no warning in the manual).

The data would normally be compatible on all architectures.  However, it 
may need the same version of R (or a newer one), and may need to have 
the same packages installed in order to read it.

Duncan Murdoch

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