sweave

I found this question about changing the size of a ggplot2 plot in Sweave. I added the Sweaveopts{width=3, height=3} and it does shrink the size of the plot, but it doesn't scale down the text. So in the end, all of the numbers on the axes overlap. Is there a way to scale the entire ggplot2 plot in Sweave so that I don't have to manually scale every component in the original ggplot2 call? It seems like something I should be able to do, but I can't find it in the ggplot2 book or on the website. Thanks! FWIW, here's my call in Sweave: \SweaveOpts{width=3, height=3} \begin{figure} \begin{center}

So I am creating pdfs using Sweave that include some graphs that have a ton of points on them. I can get the pdf well enough, but it seems to have created it with a ton of layers, so it's hard to open the file in Acrobat or Reader. When I do, I literally can watch the points load on the document. Is there a way to flatten the pdf in Sweave so that it's not so bulky? (Note that I am using RStudio. I know I should probably be using something else, but I haven't found anything that has worked this smoothly yet.) As Gavin said, there is no need to switch to knitr for this, though there are other

I'm reading the R help page for ?devAskNewPage (it was linked from ?par...ask ). I can't understand what par(ask=F) / par(ask=T) does. What do I need to read about to understand this: If the current device is the null device, this will open a graphics device. ... The precise circumstances when the user will be asked to confirm a new page depend on the graphics subsystem. Obviously this needs to be an interactive session. In addition ‘recording’ needs to be in operation, so only when the display list is enabled (see ‘dev.control’) which it usually is only on a screen device. What are devices,

I'm writing some R notes with Sweave and would like to show common errors. For example, <<echo=TRUE, eval=TRUE>>= x = 5 #Case matters! x*X @ However when sweaving, the document won't compile due to the R error. Is there any way to make sweave compile and show the (nicely formated) error? As Shane suggests, use <<echo=TRUE,eval=FALSE>> for the code that will error, but you want to display, and then again with <<echo=FALSE,eval=TRUE,results=verbatim>> but with the same code wrapped in a try. There's an example here: http://tolstoy.newcastle.edu.au/R/help/05/09/11690.html This is a non-issue with

Have a question on using xtable with Sweave when there are multiple columns. A table I am working on has about 25 columns and 5 rows. The exact number of columns is not known as that is dynamic. When I run say, table1 <- table (df$someField) I get a table that essentially exceeds the page length. ColA ColB ColC --------------------------- RowA 1 2 3 ...... RowB 3 4 6 ...... If a do a xtable on this, and run it through Sweave, xtable(table1, caption="some table") it overflows. What I am looking for is something like, ColA ColB ColC --------------------------- RowA 1 2 3 RowB 3 4 6 ColD ColE