[Rd] Persistent data structures for R
Waclaw.Marcin.Kusnierczyk at idi.ntnu.no
Fri Feb 27 12:32:21 CET 2009
hadley wickham wrote:
> Hi all,
> Has anyone thought about developing persistent
> (http://en.wikipedia.org/wiki/Persistent_data_structure) "functional"
> data structures for R? A persistent data frame, for example, would
> seem like a possible way of drastically reducing memory consumption
> for many common problems. Would developing a family of a few such
> algorithms make for a good summer of code project?
the book 'purely functional data structures' by chris okasaki  could
be a good resource. it describes a number of algorithms adapted to
computing with persistent data structures, and also discusses lazy
evaluation in this context.
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