[R] The elegant way to test if a number is a whole number

Alexander Engelhardt alex at chaotic-neutral.de
Thu Sep 8 21:35:35 CEST 2011

Am 08.09.2011 20:48, schrieb Marc Schwartz:
 > There was a post from Martin Maechler some years ago and I had to 
search a bit to find it. For these sorts of issues, I typically trust 
his judgement.
 > The post is here:
 >    https://stat.ethz.ch/pipermail/r-help/2003-April/032471.html
 > His solution also handles complex numbers.

For those too lazy to follow
He is basically creating the function is.whole:

     is.whole <- function(x)
       is.numeric(x) && floor(x)==x

Seems like the most appropriate way now. I'll make it so!
Thanks for your help :-)
  -- Alex

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