[Rd] 'is.integer' (PR#13671)

[Charles C. Berry]

On Wed, 22 Apr 2009, hzambran.newsgroups at gmail.com wrote:

> Full_Name: Mauricio
> Version: 2.9.0 (2009-04-17)
> OS:  i486-pc-linux-gnu
> Submission from: (NULL) (193.205.203.3)
>
>
> This is a very simple function that seems not to be working, according to the
> definition given by '?is.integer'.
>
> I checked in the Bug Tracking page at http://bugs.R-project.org/, but I didn't
> find any related message.
>
> The possible problem is:
>
>
>> is.integer(1)
> [1] FALSE
>
> and 1 is obviously an integer value.

Obvious?

You must know something I do not, as the protagonist of Zen and the Art of 
Motorcylce Maintenance would have pointed out.

And if you do then it is not really obvious.

> is.double(1)
[1] TRUE

1L _is_ an integer.

> is.integer(1L)
[1] TRUE
>

So this is not a bug. Please see the FAQ for advise on not posting 
non-bugs.

Chuck

>
>
> I would really appreciate if you could clarify if this is really a bug or not.
>
> Thanks in advance,
>
> Mauricio
>
>> version
>               _
> platform       i486-pc-linux-gnu
> arch           i486
> os             linux-gnu
> system         i486, linux-gnu
> status
> major          2
> minor          9.0
> year           2009
> month          04
> day            17
> svn rev        48333
> language       R
> version.string R version 2.9.0 (2009-04-17)
>
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>

Charles C. Berry                            (858) 534-2098
                                             Dept of Family/Preventive Medicine
E mailto:cberry at tajo.ucsd.edu	            UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/  La Jolla, San Diego 92093-0901