[R-pkg-devel] using @inheritParams in documenting data

Troels Ring tring @ending from gvdnet@dk
Sat Jan 12 14:52:31 CET 2019


Hi Dirk - thank you for your kind mail - I can see I better follow the basic
ways! Also since I seem by my shortcuts to have accomplished a major
problem: I had two *.RData files with similar variables of same names in
/data - if I included both and had no rda files to document data, I had this
previously mentioned problem of "following objects are masked by "glovalEnv"
- but if I used the rda files on data directly from RStudio the data were
kept to be from only one of the RData files, I think the first one -
load("*.RData") of course was still correct. 
Thanks a lot for your patience 
Troels

-----Oprindelig meddelelse-----
Fra: Dirk Eddelbuettel <dirk.eddelbuettel using gmail.com> På vegne af Dirk
Eddelbuettel
Sendt: 12. januar 2019 13:45
Til: Troels Ring <tring using gvdnet.dk>
Cc: package-develop <r-package-devel using r-project.org>
Emne: Re: [R-pkg-devel] using @inheritParams in documenting data


Hi Troels,

Always good to see someone work on packaging with so much energy.

On 12 January 2019 at 08:46, Troels Ring wrote:
| BUT where and how to put the @inheritParams CMB I cannot find documented.
| Otherwise it seems to run OK

I fear you are getting confused between 'roxygen2' and base R.

'roxygen2' is a very handy and powerful add-on package extending R. But none
of its variables, (which conveniently all start with a @) will be documented
in the proper manual, Writing R Extension.

You question about \describe, however, is about Rd which is base R. And that
very command is 'shadowed' by roxygen2 which generates that section. That is
not unlike your previous question about exporting / registration.

Personally, I see value in working old-school here, and continue to argue
that one should be familiar with the _basic_ and _portable_ commands in
Writing R Extensions before putting another layer on top.  Just how I find
it helps to explain what Rcpp does if one has a mental image of the
underlying 'SEXP .Call(funcname, SEXP, SEXP)' it is working with.  So I do
use roxygen to create Rd files but I also spent a decade or so writing Rd
files -- and quite a few people (hi, Duncan) still recommend doing it by
hand.  I think it helps. And you can mix and match.

Also, a decent trick is to search on GitHub with 'user:cran' to restrict
your search to the mirror (thanks, Gabor!) of CRAN packages. For just about
any question, it quite likely that there will be someone who has been there
before among the now (almost) 13,700 packages out there.

Dirk

--
http://dirk.eddelbuettel.com | @eddelbuettel | edd using debian.org



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