[R-pkg-devel] Example files for functions reading binary files

[Josiah Parry]

Rafael,

I believe the issue is that packages cannot include binary *executables.* If
you have a binary file (such as a parquet file) in inst/extdata, I do not
think that would be a problem. It would be a good idea to ensure that that
file is small, though. I think downloading a file is a big no no to be ran
on CRAN machines. I would personally advise against downloading anything.

On Sun, Dec 3, 2023 at 9:54 AM Rafael Ayala Hernandez <
Rafael.AyalaHernandez using oist.jp> wrote:

> ello,
>
> I have added some functions to read binary files in my asteRisk package.
> The binary files that are read contain just arrays of coefficients and
> metadata about these.
>
> I would like to provide a small file of these to be used in the examples
> of the man page for the functions that read them. However, section 1.1 of
> "Writing R Extensions” states that no binary files are accepted in
> submissions to CRAN (https://cran.r-project.org/doc/manuals/R-exts.html)
>
> I was wondering if it would be acceptable to download the example file to
> a temporary file in the example themselves (and in fact, also in unit
> tests), and then read it from there?
>
> I could not find any statement against this in “Writing R Extensions”, but
> I would like to confirm that this is OK to do before submitting an updated
> version of the package to CRAN.
>
> Thanks a lot in advance
>
> Best wishes,
>
> Rafa
>
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