(The same question was cross-posted in the knitr mailing list, so cc'ed as well)
According to the other email from Steven, this problem was solved by reinstalling R. I cannot reproduce the problem under either Ubuntu or Windows (regardless of 32-bit or 64-bit R), so I have no idea of what happened. All I can suggest in this case is to update R and run update.packages() as indicated by FAQ1: https://github.com/yihui/knitr/blob/master/FAQ.md Regards, Yihui -- Yihui Xie <xieyi...@gmail.com> Phone: 515-294-2465 Web: http://yihui.name Department of Statistics, Iowa State University 2215 Snedecor Hall, Ames, IA On Wed, Dec 26, 2012 at 6:28 PM, xiaodao <yanghaow...@utk.edu> wrote: > I have problems with very large numbers using knitr. In the following, my a > and b are extremely small and ssrr and ssru are extremely large. Knitr > delivers error messages. Scaling ssrr and ssru by 1000 resolved the problem: > ssrr <-ssrr/1000 ; ssru<-ssru/1000 > Any clue as to how I might resolve the problem? > BTW, the same program does run in another computer. I am wondering whether > my installation of Scientific Work place interferes, and if so, what else I > might do to avoid the problem. > > \documentclass{article} > \begin{document} > > <<setup, echo=FALSE, cache=FALSE>>= > ## numbers >= 10^5 will be denoted in scientific notation, > ## and rounded to 2 digits > options(scipen = 1, digits = 2) > > <<>>= > a<-1e-13 > b<-2.5e-10 > ssrr<-123456.12 > ssru<-123400.00 > @ > > $ > c=\Sexpr{a}/\Sexpr{b} % either this formula or the following formula will > has error message "missing $" after click "complie" in Rstudio. > f=\Sexpr{ssrr-ssru}/\Sexpr{ssru} > $ > > \end{document} > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/Problem-with-large-small-numbers-in-knitr-tp4653986.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@r-project.org mailing list > 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 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.