[Rd] Help for methods

[hadley wickham]

> See the .helpForCall function in utils.  It would recognize that the
> function was an S4 generic, and then work out the signature and look for
> matching help.  I think working out the signature in the case above
> would require it to call lm(...).  So there's a precedent for what I
> called a "huge mistake":  maybe it's not so huge...

And I'd imagine, in practice, most people would be doing something like

x<- ...
?summary(x)

so that wouldn't have to do an extra computation.

Hadley