From lebatsnok at gmail.com  Wed May  4 14:35:57 2011
From: lebatsnok at gmail.com (Kenn Konstabel)
Date: Wed, 4 May 2011 15:35:57 +0300
Subject: [Rd] Recursive objects
In-Reply-To: <BANLkTi=jOrtXY-njYJu7Z7pmokSzLDPfkA@mail.gmail.com>
References: <BANLkTi=jOrtXY-njYJu7Z7pmokSzLDPfkA@mail.gmail.com>
Message-ID: <BANLkTinFth1CD5bQ9rHhGCdpprkpziEeOA@mail.gmail.com>

On Wed, May 4, 2011 at 3:26 PM, Hadley Wickham <hadley at rice.edu> wrote:
> 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

is.recursive(environment())
# [1] TRUE

>
> Did I miss anything?
>
> Hadley
>
> --
> Assistant Professor / Dobelman Family Junior Chair
> Department of Statistics / Rice University
> http://had.co.nz/
>
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>



[Rd] Recursive objects
Kenn Konstabel