Re: [R] R: over/under flow

From: Douglas Bates <dmbates_at_gmail.com>
Date: Tue 21 Jun 2005 - 10:09:46 EST

On 6/20/05, William H. Asquith <wasquith@austin.rr.com> wrote:
> I am porting some FORTRAN to R in which an Inf triggers an if(). The
> trigger is infinite on exp(). What is the canonical R style of
> determining OVER when exp(OVER)== Inf? The code structure that I am
> porting is best left intact--so I need to query R somehow to the value
> of OFL that causes exp(OFL) to equal Inf.
>
> On my system,
> exp(710) is first to equal Inf.

log(.Machine$double.xmax)



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