On Fri, Sep 24, 2010 at 6:25 PM, Murray Jorgensen <maj@waikato.ac.nz> wrote:

> When will I ever learn to proof-read my emails?!
> =============
> I think what Greg sayS here is the "official wisdom" and it leads to more
> future-proofED code as the structure of various objects can change in new
> versions of R.
>
>
> OTOH the structure of a kind of object can always be explored with str(),
> but it may not be easy to find out what extractor functions are available
> for the object.
>
>
Try this using builtin data.frame, BOD, to find methods can be applied to
fm:

fm <- lm(demand ~ Time, BOD)
methods(class = class(fm))

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