[R] hash code for arbitrary object

[Roger D. Peng]

You can compute MD5 and SHA1 digests with the 'digest' package.

-roger

Adrian Baddeley wrote:
> Can anyone suggest a simple way to calculate a 'hash code'
> from an arbitrary R object?
> 
> hash(x) should return an integer or string 
> with the property that 
>      if hash(x) != hash(y) then x and y are not identical
> and the time to compute hash(x) should be quite short.
> 
> Any suggestions welcome
> thanks
> Adrian Baddeley
> 
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-- 
Roger D. Peng
http://www.biostat.jhsph.edu/~rpeng/