[R] integers

[Christoph Heibl]

Hi list,

The function is.integer tests if an object is of type integer:

see e.g.:

is.integer(12)	# FALSE
is.real(12)	# TRUE
mode(12)		# "numeric"

But how can I test if a number is actually an integer? R seek is  
difficult to search in this case because it mainly yields entries  
about the integer()-function family.

Thanks for any hint!
Christoph Heibl