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There is no way (at least not a straightforward way) to pass LaTeX variables to R. The opposite is much easier, i.e. use R variables to write LaTeX. \documentclass{article} <<include=FALSE>>= French <- 1 @ <<results='asis'>>= if (French == 1) cat('\\usepackage[French]{mytheme}') @ \begin{document} ... \end{document}


By default, the R markup in the listings package regards the period . as an other (i.e., non-letter) type of character, along with _ and $, which allows to recognize keywords that include them (such as data.frame). However, this also meansthat variables defined in the form foo.keyword.bar will highlight the keyword between the periods. You can prevent this ...


Thanks @daroczig for resolving this for me! As mentioned in his comment, by using pander() rather than print(pandoc.table()), I get the desired results. Additionally, there is no need to specify results = 'asis' in the chunk options when using this method. Below is the modified code: ```{r echo=F} library('pander') tab1 <- data.frame(foo=c('dog', 'cat', ...


Sigh, since you have read the post that you linked to, why did you still write \includegraphics{f} (which is apparently wrong according to the answer to that post)? Please post the full error message (presumably in Sam_Report_Actual.log), and avoid using absolute paths (always use relative paths if possible) and spaces in file paths (use _ or - instead).


Here is a nice introduction I found to drawing Venn diagrams: http://users.ju.edu/hduong/math220/venn_diagrams.pdf I put it here, since this question is one of the first results google gives when looking for "how to draw Venn diagrams" (naturally), and also other places refer here, but I feel none of the answers give an introduction to drawing Venn ...

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