[R] R + LaTeX formula

[Frank E Harrell Jr]

Marc Schwartz wrote:
> On Sun, 2007-12-09 at 01:04 +0000, Jonas Stein wrote:
>> Hi,
>>
>> what is actually the best method to include R-plots into LaTeX
>> documents?
>> At the moment i use 
>>
>> postscript("myplot.eps", width = 12.0, height = 9.0, horizontal =
>> FALSE, 
>> onefile = TRUE, paper = "special",encoding = "TeXtext.enc")
>> plot(foo,bar)
>> dev.off()  
>>
>> But it is a bit unhandy to scale later and its difficult to get nice 
>> formula in the plots.
>>
>> And how should i write formulas on the axis or at specific points? 
>> Has someone had some effort in exporting plots to pstricks or pictex?
>>
>> kind regards and thank you for reading so far,
> 
> As per the Details section of ?postscript:
> 
> The postscript produced for a single R plot is EPS (Encapsulated
> PostScript) compatible, and can be included into other documents, e.g.,
> into LaTeX, using \includegraphics{<filename>}. For use in this way you
> will probably want to set horizontal = FALSE, onefile = FALSE, paper =
> "special". Note that the bounding box is for the device region: if you
> find the white space around the plot region excessive, reduce the
> margins of the figure region via par(mar=).
> 
> 
> In your code above, change 'onefile = TRUE' to 'onefile = FALSE'.
> 
> For scaling you can use the LaTeX \includegraphics directive along with
> several height and width arguments, such as:
> 
>   \includegraphics[width=4in]{myplot.eps}
>   \includegraphics[height=4in]{myplot.eps}
>   \includegraphics[scale=0.75]{myplot.eps}
>   \includegraphics[width=0.4\textwidth]{myplot.eps}
> 
> You might want to review the following document:
> 
>   ftp://ftp.tex.ac.uk/tex-archive/info/epslatex.pdf 
> 
> For including formulae in R plots, see ?plotmath. You can run
> example(plotmath) and there are many posts in the r-help archives on
> this.
> 
> Beyond the above, you may want to look into using SWeave, whereby you
> can create entire documents, with nicely formatted tables and plots
> directly from R code. More information here:
> 
>   http://www.ci.tuwien.ac.at/~leisch/Sweave/
> 
> There are also a couple of articles on R News:
> 
> Friedrich Leisch. Sweave, part I: Mixing R and LATEX. R News,
> 2(3):28-31, December 2002.
> 
> Friedrich Leisch. Sweave, part II: Package vignettes. R News,
> 3(2):21-24, October 2003.
> 
> HTH,
> 
> Marc Schwartz

In addition to Marc's excellent summary (as usual) please see 
http://biostat.mc.vanderbilt.edu/SgraphicsHints and especially the link 
about putting LaTeX typesetting inside graphics (which requires Perl).

Frank

-- 
Frank E Harrell Jr   Professor and Chair           School of Medicine
                      Department of Biostatistics   Vanderbilt University