[R] strange (?) behavoir of expand.grid()

[stefan.duke at gmail.com]

Hi ya'll,

thanks for pointing out the obvious ;-)
I didn't think of that (and I showed it to a fellow colleague who
didn't spot it either, I am going to blame her for that).
Best,
Stefan






On Tue, Apr 7, 2009 at 4:52 PM, Karl Ove Hufthammer
<Karl.Hufthammer at math.uib.no> wrote:
> stefan.duke at gmail.com:
>
>> I came across a strange behavior of expand.grid (or at least strange to
>> me).
>>
>> For certain values of one of my input variables - created by seq() - I
>> have to use strings (e.g ==".6") to select a row of the object
>> created by expand.grid(), for other values numerical (e.g. ==.8) and
>> for some both work.
>
> It’s not a bug. Please see http://wiki.r-project.org/rwiki/doku.php?id=misc:r_accuracy&s=floating
> and the documents referenced therein.
>
> --
> Karl Ove Hufthammer
>
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