R help - Apr 2005 - Simple methods question

I would like to create a function with methods with the same behavior 
for both numeric and logical arguments (using S4 methods) and different 
for matrix.

I would typically do:

setGeneric('foo',function(x) standardGeneric('foo'))
setGeneric('foo','numeric',function(x) {...stuff 1...})
setGeneric('foo','logical',function(x) {...stuff 1...})
setGeneric('foo','matrix',function(x) {....stuff 2...})

If "stuff1" is identical for numeric and logical, can the two 
setGenerics be "combined" somehow?

Thanks,
Sean

Sean Davis wrote:
> I would like to create a function with methods with the same behavior 
> for both numeric and logical arguments (using S4 methods) and different 
> for matrix.
> 
> I would typically do:
> 
> setGeneric('foo',function(x) standardGeneric('foo'))
> setGeneric('foo','numeric',function(x) {...stuff 1...})
Do you mean setMethod()?

> setGeneric('foo','logical',function(x) {...stuff 1...})
> setGeneric('foo','matrix',function(x) {....stuff 2...})
> 
> If "stuff1" is identical for numeric and logical, can the two 
> setGenerics be "combined" somehow?
Maybe using (implicit) inheritance?

Uwe Ligges

> 
> Thanks,
> Sean
> 
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