Hi all, A simple solution - if indeed you want to go down this route - is to use options() and getOption(), ensuring all options are namespaced, e.g. by prefixing them with the package name.
David On Thu, 6 Sep 2018 at 17:15, Alexandre Courtiol < alexandre.court...@gmail.com> wrote: > Dear Samuel, > > Many may object (for good reasons) that adding options would clash with > functional paradigm, but it is possible. > I don't know about the least worse practice but as far as I would do it, > you could: > > 1. directly write and then read elements in the (hidden) list .Options that > is present in the global environment: > options(test = "blabla") ## add element in .Options > .Options$test ## read element (for use in your own function) > > 2. you could also create your own alternative to options(), as ex: > https://github.com/courtiol/IsoriX/blob/master/IsoriX/R/options.R > Option 2 has the benefits of not risking conflict with existing names in > .Options and it would thus also not mess up the way other packages may > work. > Option 1 uses what is already in place. > > I hope this help, > Best > > Alex > > On Thu, 6 Sep 2018 at 17:18, Samuel <samuel.granje...@inserm.fr> wrote: > > > Hi, > > > > I would like to change the default value of some arguments of some > > functions in a package of mine. I don't want to change explicitly the > > calls in the many scripts that have been written. For example, I would > > to change the delimiter in all write.mytable() without changing any > > calls it and without changing the default value currently assigned to > > that delimiter in the declaration of this function. What I would like is > > to add a command at the beginning of the scripts that says "since now, > > the delimiter is ;". > > > > I am thinking about setting global options that those functions will > > read and use to overwrite the default values. Of course the > > write.mytable function has to be modify to exploit these settings, but > > none of the scripts. I think about something similar to the par() and > > options() functions. > > > > I noticed the settings package, but I would like to know if there is a > > simple and recommended solution without adding any dependency. > > > > Hope my question is clear. > > > > Thanks for any advice, > > Samuel > > > > ______________________________________________ > > R-package-devel@r-project.org mailing list > > https://stat.ethz.ch/mailman/listinfo/r-package-devel > > > > > -- > Alexandre Courtiol > > http://sites.google.com/site/alexandrecourtiol/home > > *"Science is the belief in the ignorance of experts"*, R. Feynman > > [[alternative HTML version deleted]] > > ______________________________________________ > R-package-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-package-devel > [[alternative HTML version deleted]] ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
