hash code for arbitrary object
On Wed, 2005-08-03 at 12:05 +0800, 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
Take a look at Dirk Eddelbuettel's digest() function in the package of the same name on CRAN. Be sure to read the details section for caveats regarding collisions. HTH, Marc Schwartz