My understanding is that the S3 methods guard against situations where only S3 dispatch is done, e.g. by some internal generics. It may well be that for 'predict' this is not theoretical possibility.
I second your suggestion about predict and stats4. I have wondered in the past why 'predict' has been left out of stats4. Georgi Boshnakov -----Original Message----- From: R-package-devel [mailto:r-package-devel-boun...@r-project.org] On Behalf Of Joris Meys Sent: 24 May 2018 13:17 To: R Package Development Subject: [R-pkg-devel] Creating S3 methods for S4 classes Dear all, per the manual, one should create and register both the S3 and a S4 method if one needs a method for an S4 class for a function using S3 dispatching. This is cumbersome, and not very optimal. I was wondering if there's a better way to do this. Currently I recreate a generic in my package and create a default method that sends all the other classes to the S3 generic, eg: setGeneric("predict") setMethod("predict", "ANY", stats::predict) I'm not sure if this hasn't any adverse consequences, as it is not the recommended approach It would be great if these generics could be made available through stats4. If this would be the prefered route, I volunteer to create the patch for that. Any thoughts? Cheers Joris -- Joris Meys Statistical consultant Department of Data Analysis and Mathematical Modelling Ghent University Coupure Links 653, B-9000 Gent (Belgium) <https://maps.google.com/?q=Coupure+links+653,%C2%A0B-9000+Gent,%C2%A0Belgium&entry=gmail&source=g> tel: +32 (0)9 264 61 79 ----------- Biowiskundedagen 2017-2018 http://www.biowiskundedagen.ugent.be/ ------------------------------- Disclaimer : http://helpdesk.ugent.be/e-maildisclaimer.php [[alternative HTML version deleted]] ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
