Hello Duncan and Ivan,
Thank you for your prompt response! Perhaps I should add that:
I don't think the Python module "ctef" exists on CRAN. Therefore, I am very
surprised that the example below runs overtime, since all it has to do is to
run reticulate::py_module_available('ctef'). If even this part is running
overtime, I am not quite sure how to deal with it.
#' if (reticulate::py_module_available('ctef')) {
#' res <- my_func(input1, input2)
#' }
Looking forward to your reply.
Best,
Hanyu
________________________________
From: Duncan Murdoch <murdoch.dun...@gmail.com>
Sent: Thursday, September 21, 2023 6:44 AM
To: Hanyu Song <hanyu.s...@duke.edu>; r-package-devel@r-project.org
<r-package-devel@r-project.org>
Subject: Re: [R-pkg-devel] A simple question regarding examples
On 20/09/2023 8:03 p.m., Hanyu Song wrote:
> Hello,
>
> I have a simple question about including examples. My code depends on a
> rarely used Python module, so I am using the @examplesIf tag per Hadley
> Wickham's advice as follows:
>
> #' @examplesIf reticulate::py_module_available('ctef')
> #' res <- my_func(input1, input2)
>
> Unfortunately, my_func runs overtime during the CRAN check. To resolve this,
> do I simply use the less elegant approach as follows?
>
> #' \dontrun{
> #' if (reticulate::py_module_available('ctef')) {
> #' res <- my_func(input1, input2)
> #' }
>
The @examplesIf comments are directed at Roxygen; R checks will never
look at them. R will run tests based on what is in the my_func.Rd
examples section. I'd guess that's pretty similar to your second
version (except for the \dontrun part, which you shouldn't use, as Ivan
said).
Duncan Murdoch
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