Does anybody have a workable system to run an Rnw document through
R-Sweave when necessary, but to just run it through LaTeX if no new R
calculations are needed? I.e., the figures already exist, I do not
need R to do more work for me, so I send the document straight to
LaTeX.
I want to leave open the option that I might need to run the document
through Sweave in the future, so I don't want to just convert the
document to pure LaTeX format.
Here's why I think this must be possible. In this list, I saw one of
you explain this approach to working with figures in Sweave docs:
Instead of using the automatic figure inclusion approach like this:
<<testfn2, fig=true>>curve(sin, from = 1, to = 55)
@
Do this instead:
\SweaveOpts{prefix.string=foo/bar}
<<testfn2, fig=true, include=false>>curve(sin, from = 1, to = 55)
@
\begin{figure}
\caption{My Figure}
\includegraphics{foo/bar-testfn}
\end{figure}
As long as the figures are saved in the directory foo, then LaTeX will
find them, I think (hope!). Then if I could tell LaTeX to ignore the
<<>> ...@ stuff, then it *seems* to me the Rnw file would be
processed
successfully without further hassle.
I am sorry if this has been asked & answered before, I may not know
the "magic words" for searching for past solutions.
pj
--
Paul E. Johnson
Professor, Political Science
1541 Lilac Lane, Room 504
University of Kansas
On 4/13/2009 2:07 PM, Paul Johnson wrote:> Does anybody have a workable system to run an Rnw document through > R-Sweave when necessary, but to just run it through LaTeX if no new R > calculations are needed? I.e., the figures already exist, I do not > need R to do more work for me, so I send the document straight to > LaTeX.It's not exactly what you asked for, but the weaver package goes some way towards that, by caching the results of code chunks and not recomputing them. weaver is on Bioconductor, not CRAN, so you can install it using source("http://bioconductor.org/biocLite.R") biocLite("weaver") An alternative approach is to save the slow calculations manually, and then load() an image in an early chunk, and proceed from there. But if it's your figures that take a long time, that might not help. I'm not sure that weaver caches figures, but I would guess so. Duncan Murdoch> > I want to leave open the option that I might need to run the document > through Sweave in the future, so I don't want to just convert the > document to pure LaTeX format. > > Here's why I think this must be possible. In this list, I saw one of > you explain this approach to working with figures in Sweave docs: > > Instead of using the automatic figure inclusion approach like this: > > <<testfn2, fig=true>>> curve(sin, from = 1, to = 55) > @ > > Do this instead: > > > \SweaveOpts{prefix.string=foo/bar} > > <<testfn2, fig=true, include=false>>> curve(sin, from = 1, to = 55) > @ > > > \begin{figure} > \caption{My Figure} > \includegraphics{foo/bar-testfn} > \end{figure} > > > As long as the figures are saved in the directory foo, then LaTeX will > find them, I think (hope!). Then if I could tell LaTeX to ignore the > <<>> ...@ stuff, then it *seems* to me the Rnw file would be processed > successfully without further hassle. > > I am sorry if this has been asked & answered before, I may not know > the "magic words" for searching for past solutions. > > pj >
Paul Johnson-11 wrote:> > Does anybody have a workable system to run an Rnw document through > R-Sweave when necessary, but to just run it through LaTeX if no new R > calculations are needed? I.e., the figures already exist, I do not > need R to do more work for me, so I send the document straight to > LaTeX. >The cacheSweave package does just that. A friend and I are also working on another package called pgfSweave that incorporates code chunk caching along with native compilation of R graphics output inside LaTeX so there are no font differences. cacheSweave is available from CRAN and has been released for a while now. Currently pgfSweave is only available from rforge.net and is very much in beta. Hopefully things will really get moving this summer. If you want to turn a .Rnw file into a plain LaTeX file, just run it through Sweave('myPaper.Rnw') from the R command line. This creates myPaper.tex which contains all the output and none of the << >>= @ chunk operators. Also, your intuitions about the \SweaveOpts{prefix.string=figs/} command are correct- this does specify a subfolder for figure output to reside in. Just make sure you have created the folder yourself before running Sweave otherwise it will give an error. Hope that helps! -Charlie ----- Charlie Sharpsteen Undergraduate Environmental Resources Engineering Humboldt State University -- View this message in context: http://www.nabble.com/I-want-to-use-Sweave%2C-but-only-sometimes-tp23026260p23031551.html Sent from the R help mailing list archive at Nabble.com.