Hi,
yes, I did compile it with gcc 2.96 ... . Do you've an estimate on how "bad"
this error is, e.g. how much it effects the calculations in R?
kind regards,
Arne
> -----Original Message-----
> From: Roger D. Peng [mailto:[EMAIL PROTECTED]
> Sent: 04 February 2004 14:49
> To: Muller, Arne PH/FR
> Cc: [EMAIL PROTECTED]
> Subject: Re: [R] number point under-flow
>
>
> Did you compile with gcc-2.96? I think there were some
> problems with the floating point arithmetic with that
> compiler (at least for the earlier versions released by Red
> Hat).
>
> -roger
>
> [EMAIL PROTECTED] wrote:
> > Hello,
> >
> > I've come across the following situation in R-1.8.1
> (compile + running under
> > RedHat 7.1):
> >
> >
> >>phyper(24, 514, 5961-514, 53, lower.tail=T)
> >
> > [1] 1
> >
> >>phyper(24, 514, 5961-514, 53, lower.tail=F)
> >
> > [1] -1.037310e-11
> >
> > I'd expect the later to be 0 or some very small positive
> number. Is this a
> > number under-flow of the calculation? Do you think I'm safe
> if I just set the
> > result to 0 in these cases?
> >
> > kind regards,
> >
> > Arne
> >
> > ______________________________________________
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> http://www.R-project.org/posting-guide.html
> >
>
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