Recursive objects
On May 4, 2011, at 14:35 , Kenn Konstabel wrote:
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
Closures:
is.recursive(ls)
[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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