Syntax highlighting is easy with the highlight package, on which the knitr package is based, e.g.
- sample source: https://gist.github.com/1803930 - sample pdf: https://github.com/downloads/yihui/knitr/knitr-beamer.pdf It is possible to insert \alert{} with knitr, but you have to provide the logic: where do you want to insert them? use \alert{} on all comments? Anyway, here is a demo: - source: https://gist.github.com/2629886#file_knitr_alert.rnw - output: https://github.com/downloads/yihui/knitr/knitr-alert.pdf The knitr hooks allows you to wrestle with R code and output in any way you want, and you may need one hour or two learning the design. BTW, I'm not sure if it is my problem or yours -- your code does not actually run under my R 2.15.0. Long live the reproducible research! 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, May 9, 2012 at 4:13 PM, Giovanni Petris <gpet...@uark.edu> wrote: > > Hi all, > > Using Beamer, in order to highlight a piece of R code I do something > like this - note the "\structure" and "\alert" commands: > > \begin{semiverbatim} >> mleOut <- \structure{dlmMLE}(Nile, > + parm = c(0.2, 120), # initial values for optimizer > + lower = c(1e-7, 0)) \alert<2>{# V must be positive} >> mleOut$convergence \alert<3>{# always check this!!!} > [1] 0 > \end{semiverbatim} > > How can I get a similar effect using Sweave? > > Thank you in advance! > > Best, > Giovanni Petris > > > -- > > Giovanni Petris <gpet...@uark.edu> > Associate Professor > Department of Mathematical Sciences > University of Arkansas - Fayetteville, AR 72701 > Ph: (479) 575-6324, 575-8630 (fax) > http://definetti.uark.edu/~gpetris/ > ______________________________________________ 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.
