From petzoldt at rcs.urz.tu-dresden.de  Thu Apr 21 22:22:15 2005
From: petzoldt at rcs.urz.tu-dresden.de (Thomas Petzoldt)
Date: Thu Apr 21 22:22:21 2005
Subject: [Rd] Objects in R
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Message-ID: <42680B77.9000302@rcs.urz.tu-dresden.de>

Hi Nathan,

regarding the use of environments as the
basis of objects, note that in R 2.1.0 the
CRAN 'proto' package provides a facility for object
oriented programming that uses environments
as the underlying implementation.

Unlike the OO models discussed here, it
is based on the prototype model of
object oriented programming which is one
in which classes are not an atomic
concept (though it is powerful enough to
readily express them if one wants).

Thomas Petzoldt


[Rd] Objects in R
Thomas Petzoldt