## List vignettes from all *attached* packages
vignette(all = FALSE)
## List vignettes from all *installed* packages (can take a long time!):
vignette(all = TRUE)
## Not run:
# ## Open the grid intro vignette
# vignette("grid")
#
# ## The same
# v1 <- vignette("grid")
# print(v1)
#
# ## Now let us have a closer look at the code
# edit(v1)
#
# ## An alternative way of extracting the code,
# ## R file is written to current working directory
# Stangle(v1$file)
#
# ## A package can have more than one vignette (package grid has several):
# vignette(package = "grid")
# vignette("rotated")
# ## The same, but without searching for it:
# vignette("rotated", package = "grid")
# ## End(Not run)
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