I guess there is not a steep learning curve if you want to use cache in knitr or cacheSweave -- just use the chunk option cache=TRUE and you are all set.
<<heavy-chunk, cache=TRUE>>= # time-consuming computation here @ Regards, Yihui -- Yihui Xie <xieyi...@gmail.com> Phone: 515-294-2465 Web: http://yihui.name Department of Statistics, Iowa State University 2215 Snedecor Hall, Ames, IA On Thu, Apr 26, 2012 at 10:52 AM, Rainer Schuermann <rainer.schuerm...@gmx.net> wrote: > The easiest way probably is to put the code that takes so long to execute, in > a separate file, such as "graph1.Rnw", and get it into your master file via > SweaveInput( "graph1.Rnw" ). > Once you are happy with your graph1, you can comment this line out and only > compile the stuff that keeps changing. > > Of course, there are more general methods available: > > Check out > http://cran.r-project.org/web/packages/cacheSweave/ > > Another way around re-compiling would be using make > http://cgibbons.berkeley.edu/Research/Papers/MakefileTutorial.pdf > > As a modern replacement for Sweave > http://cran.r-project.org/web/packages/knitr/index.html > seems to be the thing to watch. > > Personally, I'm still putting up with some waiting time, rather than moving > up the learning curve, but I'm sure one of these three will meet your > requirement. > > Rgds, > Rainer > > > > On Thursday 26 April 2012 16:29:28 julia.jacob...@arcor.de wrote: >> Hello everybody out there using Sweave, >> >> There are some complicated SQL queries and laborous calculations against >> large data included as R code chunks using Sweave in my LaTeX document. >> These code chunks create graphs that do not change most of the time, but >> they are of course recompiled every time I run Sweave on my file for update >> of minor changes to the LaTeX text. >> Is there an option implemented in Sweave allowing for avoidence of >> recompilation of already existing figures? >> >> Thanks in advance, >> Julia >> ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
