On Mon, 11 Jan 2021 at 08:22, Shaami <nzsh...@gmail.com> wrote: > > Dear Friends I am facing the problem of log values in R. The > log(1-0.99999999999999999) is giving -Inf while log(1e-18) gives finite > answer. Any suggestion to deal with this problem? Thank you
This vignette has a lot of good information about log of small numbers. vignette(package = "Rmpfr", "log1mexp-note") https://cran.r-project.org/web/packages/Rmpfr/vignettes/log1mexp-note.pdf Regards Martin M. S. Pedersen [[alternative HTML version deleted]] ______________________________________________ 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.
