[R] getting "small" graphs with Sweave using Rnews.sty
Duncan Murdoch
murdoch at stats.uwo.ca
Tue Nov 4 12:01:58 CET 2008
Jeff Hamann wrote:
> I'm sorry for having to post this, but I can't seem to find any
> solutions to this, which seems pretty simple, but then again...
>
> I've started playing with the example r news project and wanted to start
> adding some graphs, but replacing:
>
> \begin{figure}
> \vspace*{.1in}
> \framebox[\textwidth]{\hfill \raisebox{-.45in}{\rule{0in}{1in}}
> A graph goes here \hfill}
> \caption{\label{figure:onecolfig}
> A normal figure only occupies one column.}
> \end{figure}
>
> yields a an empty box, which is good, with the following:
>
> \begin{figure}
> \vspace*{.1in}
> <<fig=true,echo=false>>=
> plot( rnorm( 100 ) )
> @
> \caption{A normal figure only occupies one column.}
> \label{figure:onecolfig}
> \end{figure}
>
> which isn't good, or at least yields a "normal sized" graph that starts
> in the second column, when I run Sweave( "yourarticle.rnw" ) and the
> pdflatex wrapper
>
> Is it possible, to get a "small" graphic this way, or should I write
> out a temp graph as a pdf and include the graphic by constructing the
> statement using Sweave?
>
>
There are two ways to control the size of an Sweave graph: by telling R
the size you want, and by telling LaTeX how big to make it when you
include it.
You tell R the size by using <<fig=true, width=w, height=h>>= (with w
and h being numbers in units of inches). You tell LaTeX
(assuming you're using the graphicx package) by using
\setkeys{Gin}{width=w} (or maybe you'd want to set the height, but I
usually just set the width and
let LaTeX scale the height accordingly). The w here is a LaTeX measure
such as \textwidth or 4in or whatever you like.
I find the font choices in R look a little bit too large if I tell R the
actual size I want, so I generally use both: tell R I want the figure
larger than I really want it, and then tell
LaTeX to shrink it to fit.
Duncan Murdoch
> Thanks for any advice,
> Jeff.
>
>
>
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