R devel - Feb 2011 - S3 method for S4 object

I am trying to extend an S3 method to work with an S4 object as well as the S3
objects it works with, but UseMethod does not seem to recognize the S4 class and
dispatches to the default method.  Is this to be expected or should I be looking
for an error in my code?

If it is not an error in my code, is there an easy way to do this, or do I have
to convert the generic to S4 and then make  those methods deal with the S3
objects?

(Using R 2.12.1 on Ubuntu 10.10.)

Paul Gilbert
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On 02/03/2011 09:29 AM, Paul Gilbert wrote:
> I am trying to extend an S3 method to work with an S4 object as well
> as the S3 objects it works with, but UseMethod does not seem to
> recognize the S4 class and dispatches to the default method.  Is this
> to be expected or should I be looking for an error in my code?
> 
> If it is not an error in my code, is there an easy way to do this, or
> do I have to convert the generic to S4 and then make  those methods
> deal with the S3 objects?
Hi Paul

See ?Methods and the "Methods for S3 Generic Functions" section.

Martin
> 
> (Using R 2.12.1 on Ubuntu 10.10.)
> 
> Paul Gilbert 
>
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>  La version fran??aise suit le texte anglais.
> 
>
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> 
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