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 > > > > ______________________________________________ > > [EMAIL PROTECTED] mailing list > > https://www.stat.math.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > > > ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html