Thanks Richard. Got it now...
On Thursday, September 3, 2020, 10:12:36 PM PDT, Richard M. Heiberger <r...@temple.edu> wrote: FAQ 7.31 On Fri, Sep 4, 2020 at 12:47 AM array chip via R-help <r-help@r-project.org> wrote: > > Hello, > > I made a mistake today on simple counting in R, that almost got me into > trouble. After trying multiple times, I finally figured out it's rounding > issue in R. > > For exmaple, when I just simply type: > > > (6.9-6.3) > 0.6 > [1] TRUE > > 6.9-6.3 should be 0.6 exactly, but R thinks that it's greater than 0.6!! > > Similarly, R thinks 5.6-5.5 is smaller than 0.1: > > > (5.6-5.5) < 0.1 > [1] TRUE > > Why is the above happening? This rounding issue seems to be small, but this > could cause serious problem in real world. > > Can anyone shed a light on how to avoid the issue? > > Thanks, > > Yi > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
