[Rd] Patches to speed up R 2.13.0

Radford Neal radford at cs.toronto.edu
Thu Jun 9 21:11:20 CEST 2011


I have created a collection of patches to the R 2.13.0 source that
speed up many operations substantially.  Some of these are related to
the patches I posted in September 2010, though often with additional
improvements.  Other patches are new.  

The patches, along with detailed documentation, are available from

  http://www.cs.utoronto.ca/~radford/R-mods-2.13.0.html

For some discussion of these patches and their benefits, see my blog
post, at 

  http://radfordneal.wordpress.com/2011/06/09/new-patches-to-speed-up-r-2-13-0

I believe that these improvements to the R implementation should be of
substantial benefit to the R community.  The R core team is welcome to
incorporate them into versions of R that they release in the future.

   Radford Neal



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