search for: s3groupgeneric

...ux boxes that don't on Mac or other machines. Here is an example from (Red Hat?) in doing the basic tests, in src/tests/Examples/, where base-Ex.R seems to have a problem, at the end of base-Ex.Rout.fail: > ### Name: groupGeneric > ### Title: S3 Group Generic Functions > ### Aliases: S3groupGeneric .Group Math Math.data.frame Ops Ops.data.frame > ### Summary Summary.data.frame Complex 'group generic' > ### Keywords: methods > > ### ** Examples > > require(utils) > > d.fr <- data.frame(x=1:9, y=stats::rnorm(9)) > class(1 + d.fr) == "data.frame"...

..." <- function(x, y) function(z) x(z) + y(z) > > sin+cos > Error in sin + cos : non-numeric argument to binary operator > > "+.function"(sin, cos) > function(z) x(z) + y(z) > <environment: 0x01c4ae7c> I think that's because > oldClass(sin) NULL ?S3groupGeneric says: Note that a method will used for either one of these groups or one of its members _only_ if it corresponds to a '"class"' attribute, as the internal code dispatches on 'oldClass' and not on 'class'. This is for efficiency: having to dispa...

Dear R People: Is there a way to determine which functions are generics, please? I looked for something like is.Generic, but no luck. Thanks in advance! Sincerely, Erin -- Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: erinm.hodgess at gmail.com

Hi all, I've noticed a couple of small bugs/documentation errors related to S3 internal and group generics: * In ?S3groupGeneric, log2 and log10 are not listed as group generics, even though they are in the equivalent S4 groups, and are the source code for do_log1arg contains DispatchGroup("Math", ...) * As well as log2 and log10, tools:::.get_internal_S3_generics() fails to include cbind and rbind, even though th...