Making an R package PDF manual using devtools

Question

I am making an R package using devtools and roxygen2. I can get a PDF manual using R CMD but I am really curious as to whether this can be done using devtools. devtools' build(), check(), install() all don't make a PDF manual. Is this tied to making vignettes?

I have read and referred to a similar thread Package development : location of pdf manual and vignette

Answer 1

After you install it, you can use:

pack <- "name_of_your_package"
path <- find.package(pack)
system(paste(shQuote(file.path(R.home("bin"), "R")),
    "CMD", "Rd2pdf", shQuote(path)))

Answer 2

There is

devtools::build_manual()

Maybe also

devtools::check(manual=TRUE)

could work.

Answer 3

For the PDF manual of one specific function, you can run

fun <- "name_of_function"
help(fun, package = "name_of_package", help_type = "pdf")
system(paste0("open ",  fun, ".pdf"))

assuming you have the package installed.