[R] integers

[Gustaf Rydevik]

On 9/4/07, Christoph Heibl <christoph.heibl at gmx.net> wrote:
> 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
>
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

How about


x<- c(12,12.66)
trunc(x)==x

?
--
Gustaf Rydevik, M.Sci.
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skype:gustaf_rydevik