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 they are listed in ?"internal
generics"
Based on my reading of the documentation and the source code, I
believe this function lists all S3 internal generics:
s3_internal <- function(fname) {
# Functions in S4 group generics should be the same
group <- c(getGroupMembers("Arith"), getGroupMembers("Compare"),
getGroupMembers("Logic"), getGroupMembers("Math"), getGroupMembers("Math2"),
getGroupMembers("Summary"), getGroupMembers("Complex"))
primitive <- .S3PrimitiveGenerics
# Extracted from ?"internal generic"
internal <- c("[", "[[", "$", "[<-", "[[<-", "$<-", "unlist",
"cbind", "rbind", "as.vector")
c(group, primitive, internal)
}
Have I missed anything?
Thanks!
Hadley
--
Chief Scientist, RStudio
http://had.co.nz/
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