Generate NA of specified type
What about NAof <- function(x) as(NA, class(x))? -roger
On Wed, May 5, 2010 at 11:57 AM, Hadley Wickham <hadley at rice.edu> wrote:
Hi all,
Is there an existing function that provides the correct type of
missing value for a given vector? e.g.
NAof(1:3) # NA_integer_
NAof(pi) # NA_real_
NAof("a") # NA_character_
NAof(T) # NA
?
Thanks,
Hadley
--
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
http://had.co.nz/
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