On 2/12/2008 9:35 AM, [EMAIL PROTECTED] wrote: > Dear developer, > > in my version of R (2.4.0) as weel as in a more recent version (2.6.0) > on different computers, we found this problem :
This is not a bug, it's a limitation of finite precision arithmetic, and it's FAQ 7.31. Duncan Murdoch > > > a<-(58/40-1) > > a > [1] 0.45 > > b<-(18/40) > > b > [1] 0.45 > > a<b > [1] TRUE > > a==b > [1] FALSE > > > Something seems wrong here. > but if we do > > > c<-0.45 > > d<-0.45 > > c<d > [1] FALSE > > then everything is ok. > If we use 59 and 19 instead of 58 and 18, the error is not here anymore. > I guess there is a problem with the envelop object for the comparisons > between different types in R (as in JAVA maybe) but I am not familiar > with the R language. > I hope this helps, and that this is a real bug, if not, I am sorry to > have bothered you. > > Cheers! > > Jacques. > > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
