Thank you. The article you cited explains on the last page how this is done and shows how Sweave is run from within R and it says that it creates the .tex file.
My last remaining question is now if there is a way to execute this Sweave tex output by executing Latex from R. In other words, what is the command to execute latex from within R. Or do I perhaps think to complcated and there is a single command to create the tex and the pdf/ps in a single step? At the end, I would like to create everything between the Sweave document and the final pdf/ps output from within R without the need to make external calls. Ralf On Sat, Nov 13, 2010 at 4:29 PM, Johannes Huesing <johan...@huesing.name> wrote: > Ralf B <ralf.bie...@gmail.com> [Sat, Nov 13, 2010 at 10:03:49PM CET]: >> It seems that Sweave is supposed to be used from Latex and R is called >> during the LaTeX compilation process whenever R chunks appear. > > This is not how it works. > > In the first page of > http://www.statistik.lmu.de/~leisch/Sweave/Sweave-Rnews-2002-3.pdf > that the file is first processed by R before it can be typeset by > LaTeX. > >> What >> about the other way round? I would like to run it triggered by R. Is >> this possible? > > To my understanding this is how it's done. > >> I understand that this does not correspond to the idea >> of literate programming since it means that there is R code running >> outside the document, > > You lost me here. > >> but for my practical approach, I would like to >> use Sweave more like a report extension at the end of my already >> existing R scripts that combined a number of diagrams to a pdf file. >> >> My second question is, does Sweave create a potential performance >> bottleneck when used with very big data analysis compared with when >> using R directly? >> > > Not really, because the only overhead is tangling the Sweave file. > If it is very big, you may want to process only the parts you have > changed last. The package weaver seems to come in handy then, see > http://bioconductor.org/packages/2.6/bioc/vignettes/weaver/inst/doc/weaver_howTo.pdf > -- > Johannes Hüsing There is something fascinating about science. > One gets such wholesale returns of conjecture > mailto:johan...@huesing.name from such a trifling investment of fact. > http://derwisch.wikidot.com (Mark Twain, "Life on the Mississippi") > > ______________________________________________ > 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.