[Rd] Recursive objects

[Kenn Konstabel]

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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