params$data is "hawaii" in this case, so the output of ``r params$data``
is `hawaii` The double backticks don't have any special meaning here. Only the inside pair of backticks (i.e. `r `) makes sense to R Markdown (or precisely speaking, knitr). The outside pair will be left untouched after knitr evaluates the inline R expression `r params$data`. After evaluation, there won't be double backticks. This has nothing to do with the left curly double quote LaTeX. The result `hawaii` will be converted to <code>hawaii</code> if the output format is HTML (or \texttt{hawaii} if the output format is LaTeX), but the extra backticks in the original Rmd document is completely optional. It all depends on whether you want to place the result in a code tag or command. Regards, Yihui -- https://yihui.name On Mon, Oct 14, 2019 at 8:42 AM Jeff Newmiller <jdnew...@dcn.davis.ca.us> wrote: > > No, you don't misunderstand. But you might want to be aware that targeting > PDF output uses LaTeX which regards double backticks as a method of encoding > a left curly double quote mark, so this error could derive from an incomplete > adaptation of the Rmd file for HTML output even though such a symbol doesn't > make sense there in PDF either. > > On October 14, 2019 4:35:26 AM PDT, Ashim Kapoor <ashimkap...@gmail.com> > wrote: > >Dear All, > > > >I am reading this file :- > > > >https://rmarkdown.rstudio.com/lesson-6.html > > > >My query is : In line 14 of the above file, ie. > > > >The [marmap](https://cran.r-project.org/web/packages/marmap/index.html) > >package provides tools and data for visualizing the ocean floor. Here > >is an > >example contour plot of marmap's ``r params$data`` dataset. > > > >Should not the phrase rparams$data be within SINGLE backticks ? > > > >Do I misunderstand? > > > >Thank you, > >Ashim > > > > [[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. > > -- > Sent from my phone. Please excuse my brevity. > > ______________________________________________ > 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.