From hadley at rice.edu  Wed May  4 14:26:24 2011
From: hadley at rice.edu (Hadley Wickham)
Date: Wed, 4 May 2011 07:26:24 -0500
Subject: [Rd] Recursive objects
Message-ID: <BANLkTi=jOrtXY-njYJu7Z7pmokSzLDPfkA@mail.gmail.com>

Hi all,

Does anyone have a comprehensive list of recursive-type objects in R?
is.recursive defines them as by exclusion: "most types of objects are
regarded as recursive, except for  vector types, ?NULL? and symbols
(as given by ?as.name?)."  I think this that means recursive objects
are:

 * lists
 * pairlists
 * calls
 * expressions

Did I miss anything?

Hadley

-- 
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
http://had.co.nz/



[Rd] Recursive objects
Hadley Wickham