I am writing a large document using a Latex, WinEdt, RStudio and Sweave. I have a large number of graphs that use SWeave code blocks (>30). Many of these blocks read in large data files from disk. Most days I work on on 2-3 blocks at a time. However, no matter how minor a change I make to the R code, every time I compile, the entire document must run through R. This can take 5-10 minutes.
I guess what I am looking for is a combination of a C/C++ make file and R/Sweave. Does such a concept exist or am I being too needy?
Thanks in advance for the help.