[R] Auto-save possible in R?

[Duncan Murdoch]

On 8/11/2006 4:05 PM, John Morrow wrote:
> Hello fellow R'ers, I have a simple calculation with a very large data set
> being generated (34.9 million values) on a somewhat unreliable XP box that
> will likely take ~ 74hrs.  I wanted to know if there is a way to have my
> script automatically "save.image()" throughout the calculation in case of a
> crash.  This could be on the basis of output generated or time elapsed.  I
> checked the archive, and only got a hint of it from:
> https://stat.ethz.ch/pipermail/r-help/1997-May/001611.html
> 
>  
> 
> Any quick suggestions would be greatly appreciated,

I don't know of anything exactly as you describe.  I'd recommend 
thinking about suitable restart points in the computation, and manually 
using save() or save.image() in your script.

Duncan Murdoch