sweave

I just installed Lyx 2.0.3 on my iMac and MacBook Air. When trying to open a *.lyx document on the iMac I get the following error-message: "The module knitr has been requested by this document but has not been found in the list of available modules. If you recently installed it, you probably need to reconfigure LyX." On the MacBook Air everything runs fine without any errors. Any ideas how to install the knitr-module manually? Thanks The only requirement of the knitr module in LyX is R: you have to make sure the executable Rscript is in your PATH; you can test it by: which Rscript If you see

I want to have column names on each page of the xtable. \documentclass{article} \usepackage{graphicx} \usepackage{longtable} \begin{document} <<>>= x <- matrix(rnorm(1000), ncol = 10) x.big <- xtable(x,label='tabbig',caption='Example of longtable spanning several pages') @ <<label = tabSEM.S, echo = FALSE, results = tex >>= print(x.big,tabular.environment='longtable',floating=FALSE) @ \end{document} Any help will be highly appreciated. Thanks joran I think this is really a LaTeX question, which I simply Googled and ended up with a simple answer from tex.stackexchange.com here . Try this

I am just starting to write some documents with Sweave/R and I like the \sexpr{} command that lets one tow write numbers directly within text. If I have a number like mus=0.0002433121 , well I can say round it to a number of decimal places e.g. \Sexpr{round(mus,7)} How to write it in the scientific notation i.e. as LaTeX would be outputting 2.43 \times 10^{-4} and can we control the number of significant digits to be outputted like 3 in this example? I note that a number like sigma = 2000000 is written automatically to 2e + 06 if I specify \Sexpr{round(sigma,2)}. I would prefer that it would

I'm trying to make a presentation on ggplot2 graphics using beamer + sweave. Some slides should have two columns; the left one for the code, the right one for the resulting graphic. Here's what I tried, \documentclass[xcolor=dvipsnames]{beamer} \usepackage{/Library/Frameworks/R.framework/Resources/share/texmf/tex/latex/Sweave} \usepackage[english]{babel} \usepackage{tikz} \usepackage{amsmath,amssymb}% AMS standards \usepackage{listings} \usetheme{Madrid} \usecolortheme{dove} \usecolortheme{rose} \SweaveOpts{pdf=TRUE, echo=FALSE, fig=FALSE, eps=FALSE, tidy=T, width=4, height=4} \title

I have data tables (d1 and d2) which I would like to print side by side or on top of each other in latex with their own individual titles. Is it possible to do that directly with xtable() ? The two tables should be distinct, i.e. we could call them Table x(a) and Table x(b) , but they should be either adjacent, or stacked. I would recommend saving the results as two separate tables in different files (see the file= option to print.xtable() ), and then input them into your LaTeX document with any command you find appropriate for your layout ( tabular , subfloat , minipage , etc.). This is what