Thank you Andrew ! I think I didn't explain my context correctly. I'm not importing datasets from 'sp'. I have datasets that are built from S4 objects of sp. In pratical terms, I don't import anything from 'sp' but I need 'sp' for my datasets to exist.
Cheers. Aurélie. Le 17/01/2022 à 17:24, Andrew Simmons a écrit : > If a package is declared in Imports, it means that there must be some > kind of import expression in the NAMESPACE file. For example: > > import(sp) # imports the whole sp package, probably NOT what you want > importFrom(sp, Polygon) # import object Polygon from sp namespace > > Theoretically, your import statement could import any of the sp > namespace objects, but it probably makes far more sense to import the > datasets from sp that you're using > > On Mon, Jan 17, 2022, 11:11 Aurélie Siberchicot > <aurelie.siberchi...@univ-lyon1.fr > <mailto:aurelie.siberchi...@univ-lyon1.fr>> wrote: > > Hi, > > I maintain the 'ade4' package which contains data with S4 objects > from > the package 'sp'. > Some functions of the 'sp' package are also used in examples in > some Rd > files (using the code -- if(requireNamespace("sp", quietly = > TRUE)) {} --). > In February 2020, I moved the 'sp' package from 'Suggests' to > 'Imports' > according to an email received from Brian Ripley, because "At > least one > of the datasets cannot be loaded without a package declared in > Suggests: > -- typically this is because it loads a namespace defining S4 > classes, > and such imports should be declared in Imports or (as Matrix does) > use a > .R wrapper." > > For a few months, I have had the following NOTE: > * checking dependencies in R code ... NOTE > Namespace in Imports field not imported from: ‘sp’ > All declared Imports should be used. > > In 'Writing R Extensions', I found: "Packages needed to use datasets > from the package should be in ‘Imports’: this includes those > needed to > define S4 classes used." > > Moving back 'sp' in 'Suggests' seems to solves the NOTE but is > contrary > to the recommendations of 'Writing R Extensions' and Brian Ripley. > I'm a bit confused to solve this note and the best way to declare the > dependency of 'ade4' to 'sp'. > Is anyone in my situation? Does anyone have any advice? > > Thanks in advande for any help. > Cheers. > Aurélie. > > > > > > -- > Aurélie SIBERCHICOT > Ingénieure en Ingénierie Logicielle > 04 72 44 85 98 - aurelie.siberchi...@univ-lyon1.fr > <mailto:aurelie.siberchi...@univ-lyon1.fr> > > Laboratoire Biométrie et Biologie Evolutive - UMR CNRS 5558 > Université Claude Bernard - Lyon 1 > Bâtiment Grégor Mendel, 43 boulevard du 11 novembre 1918 > 69622 Villeurbanne cedex > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-package-devel@r-project.org > <mailto:R-package-devel@r-project.org> mailing list > https://stat.ethz.ch/mailman/listinfo/r-package-devel > <https://stat.ethz.ch/mailman/listinfo/r-package-devel> > -- Aurélie SIBERCHICOT Ingénieure en Ingénierie Logicielle 04 72 44 85 98 - aurelie.siberchi...@univ-lyon1.fr Laboratoire Biométrie et Biologie Evolutive - UMR CNRS 5558 Université Claude Bernard - Lyon 1 Bâtiment Grégor Mendel, 43 boulevard du 11 novembre 1918 69622 Villeurbanne cedex [[alternative HTML version deleted]] ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
