R help - Jun 2005 - showMethods doubt

Hi,

I'm developing in S4 and I wanted to see the methods for a specific 
class using showMethods but I didn't succed. Can someone help ? See the 
example below.

setClass("myclass",
	representation(
		name	="character"
	)
)

setGeneric("mymeth", function(obj, ...){
	standardGeneric("mymeth")
	}
)

setMethod("mymeth", signature("myclass"), function(obj){
	print(paste("Hi,", obj at name, "and I don't know what to do
with
showMethods !"))
	}
)

Now if you do:

 > myobj <- new("myclass", name="my name is joe")
 > mymeth(myobj)
[1] "Hi, my name is joe and I don't know what to do with showMethods
!"

So the method is working, let's use showMethods:

 > showMethods(classes="myclass")

Function "addNextMethod":
<Empty Methods List>

Function "body<-":
<Empty Methods List>

Function "coerce":
<Empty Methods List>

Function "initialize":
.Object = "myclass"
     (inherited from .Object = "ANY")

Function "loadMethod":
<Empty Methods List>

Function "show":
object = "myclass"
     (inherited from object = "ANY")
NULL

mymeth does not show on that list, why ?

Regards

EJ

Ernesto Jardim wrote:
> Hi,
> 
> I'm developing in S4 and I wanted to see the methods for a specific
> class using showMethods but I didn't succed. Can someone help ? See the
> example below.
> 
> setClass("myclass",
>     representation(
>         name    ="character"
>     )
> )
> 
> setGeneric("mymeth", function(obj, ...){
>     standardGeneric("mymeth")
>     }
> )
> 
> setMethod("mymeth", signature("myclass"),
function(obj){
>     print(paste("Hi,", obj at name, "and I don't know
what to do with
> showMethods !"))
>     }
> )
> 
> Now if you do:
> 
>> myobj <- new("myclass", name="my name is joe")
>> mymeth(myobj)
> [1] "Hi, my name is joe and I don't know what to do with
showMethods !"
> 
> So the method is working, let's use showMethods:
> 
>> showMethods(classes="myclass")
> 
> Function "addNextMethod":
> <Empty Methods List>
> 
> Function "body<-":
> <Empty Methods List>
> 
> Function "coerce":
> <Empty Methods List>
> 
> Function "initialize":
> .Object = "myclass"
>     (inherited from .Object = "ANY")
> 
> Function "loadMethod":
> <Empty Methods List>
> 
> Function "show":
> object = "myclass"
>     (inherited from object = "ANY")
> NULL
> 
> mymeth does not show on that list, why ?
Try

showMethods(classes = "myclass", where = .GlobalEnv)

I believe the convention is that unless you give showMethods a generic
function as argument `f' it will look for the generics in
"package:methods".