[R-pkg-devel] Rd cross-references ... NOTE, Undeclared packages ... in Rd xrefs
On 6/13/22 1:26 PM, Duncan Murdoch wrote:
On 13/06/2022 12:12 p.m., Spencer Graves wrote:
Hello, All: ????? How do I fix "Rd cross-references ... NOTE Undeclared packages ?EnvStats?, ?drc?, ?zoo?, ?prodlim?, ?plyr?, ?TRAMPR?, ?raster? in Rd xrefs"? ????? This occurs with "https://www.r-project.org/nosvn/R.check/r-devel-linux-x86_64-fedora-clang/Ecfun-00check.html" and with "https://www.r-project.org/nosvn/R.check/r-devel-linux-x86_64-fedora-clang/Ecdat-00check.html". ?? However, this error is not raised on other platforms.? My search for this note produced essentially the same message for other packages but no advice on how to fix it. ????? These are references to other packages that I do not use in my packages but that some users may wish to consider.? If needed, I will add them to "Suggests" for the packages.? However, that seems overkill, because I do not use them myself.? ???
Section 2.5 of Writing R Extensions says "Packages referred to by these ?other forms? should be declared in the DESCRIPTION file, in the ?Depends?, ?Imports?, ?Suggests? or ?Enhances? fields."? Of those fields, Suggests looks like the best fit.? You'd use Enhances if your package provides "methods for classes from these packages, or ways to handle objects from these packages".
Thanks. I looked at "Writing R Extensions" but could not find anything that seemed to fit. I probably should have just used "Suggests" and not bothered this list with this issue. Thanks again, Spencer Graves
Duncan Murdoch