[R] Any concept of 'by reference' or 'address of' in R?

Mark Knecht markknecht at gmail.com
Sat Sep 19 01:38:36 CEST 2009

   Is there a way to pass the address of a data.frame through a set of
functions in R? I've got some code which is slowing down I think
because my data.frames are getting much larger - now approaching 1
million rows by 50-100 columns - and my functions - originally written
for much smaller data elements are sampling these data.frames a couple
of layers down.

   Before I rewrite them to do the sampling at the top level if there
was a way to pass the address of the data.frame instead of the a copy
of the whole thing then I suspect that would speed things up


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