[Rd] Help for methods

[hadley wickham]

> You are supposed to do:
>
> ?summary.lm
> ?summary.data.frame
>
> for S3 methods. The former works, the latter doesn't - which is
> probably considered a bug, but then the usage of some of the
> generics are probably considered obvious and fundamental enough
> that summary.data.frame doesn't really behave in any substantially
> different way compared to what is said in ?summary and ?Summary .

Well, I know that, and you know that, but how is anyone supposed to
figure it out?  It means that you need to have a working knowledge of
the S3 and S4 class systems before you can use the help to reliably
get the documentation you need.

Hadley