On 11/03/2024 11:43 a.m., Therneau, Terry M., Ph.D. via R-devel wrote:
Is there a way to include the compiled version of a vignette in the doc directory but mark it to NOT be rerun by CRAN? I think I remember that this is possible, but have forgotton how. (It might even be a false memory.)
You could use a method similar to the testthat::skip_on_cran() approach. Have the long running chunks only run conditional on having a special environment variable present. This would be a little easier with knitr than with Sweave, since there you can use expressions for the chunk options, but you could always write the code something like this:
if (Sys.getenv("RUN_SLOW_CHUNKS", 0)) { ... the slow code goes here ... } else cat("This chunk takes several hours to compute. If you want to run it, set the environment variable RUN_SLOW_CHUNKS to 1.\n") Duncan Murdoch
Terry T. Background: Beth Atkinson and I are splitting out many of the vignettes from the survival package into a separate package survivalVignettes. There are a few reasons 1. Some vignettes use packages outside of the base + recommended set; psueodovalues for instance are normally used as input to a subsequent GEE model. Since survival is itself a recommended package, it can't legally host the pseudo.Rnw vignette. 2. The set of vignettes for survival is large, and likely to get larger. It makes sense to slim down the size of the package itself. 3. It allows us to use Rmd. (Again, survival can't use anything outside of base + recommended). 4. We have a couple of 'optional' vignettes that talk about edge cases, useful to some people but not worth the size cost of cluttering up the main package. The current submission fails due to one vignette in group 4 which takes a looong time to run. This vignette in particular is talking about compute time, and illustrates a cases where an O(n^2) case arises. As sentence that warns the use "of you do this it will take hours to run" is a perfect case for a pdf that should not be recreated by R CMD check.
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