[R] generic functions question in building a new package

[Uwe Ligges]

On 19.07.2012 22:44, zgu9 wrote:
> Hi all,
>
> I'm trying to build a package 'Thiele', but run into problems with generic
> functions.
> I have a class "Benefit", and defined the function "print.Benefit".
> When I try "R CMD check Thiele" in X11, this warning came out
> -------
> Functions/methods with usage in documentation object 'Benefit' but not in
> code:
>    print


You need

\S3method{print}{Benefit}(.......)

in the usage line rather than

print(.......)

Best,
Uwe Ligges


> -------
> Do I need to write a new "print" Rd document into R file in that Package? If
> so, how can I write it?
> I read the section 7 "Generic functions and methods" in the 'Writing R
> Extensions' manual. But I'm still not clear how to figure out my problem.
>
> Thanks!
> Eric
>
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