[R-pkg-devel] Define S4 method for generic in other package
h.wickham at gmail.com
Tue Sep 1 00:32:08 CEST 2015
I'd recommend creating a minimal package that illustrates the problem
using an existing S4 generic in a base package (e.g. stats4::AIC).
That makes it easier to figure out what's gone wrong.
It's unlikely to be a roxygen2 problem since the translation from
@importFrom foo bar (etc) to importFrom(foo, bar) is quite
On Fri, Aug 28, 2015 at 3:23 AM, Thierry Onkelinx
<thierry.onkelinx at inbo.be> wrote:
> Dear all,
> I'm trying to define a new S4 method for a generics defined in an
> other package. Here is my attempt, but that isn't working.
> bar <- function(a, b) is defined as generic and S4 method in the package foo
> #' @importFrom foo bar
> #' @importMethodsFrom foo bar
> f = "bar",
> signature = signature(A = "myClass"),
> definition = function(
> a = myClass at A,
> b = myClass at B
> When I build my package I get the error "no existing definition for
> function 'bar'".
> Any suggestions?
> Best regards,
> ir. Thierry Onkelinx
> Instituut voor natuur- en bosonderzoek / Research Institute for Nature
> and Forest
> team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
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