[Rd] Help for methods

[hadley wickham]

> I do not follow this. When I type ?summary.data.frame I get a
> summary help page where I can also find info about S3 method for class
> 'data.frame'. If I am not wrong it is
>
> \alias{summary.data.frame}
>
> that takes care of this.

Oops, summary.data.frame was a bad example, except perhaps to
illustrate how easy it is not to notice when you have found the
correct documentation.  summary.lm is a better one.

Hadley