>>>>> "RossB" == Ross Boylan <[EMAIL PROTECTED]>
>>>>> on Thu, 30 Nov 2006 22:29:06 -0800 writes:
RossB> I've had repeated problems with promptClass missing
RossB> methods, usually telling me a class has no methods
RossB> when it does.
RossB> In my current case, I've defined an S4 class
RossB> "mspathCoefficients" with a print method
RossB> setMethod("print", signature(x="mspathCoefficients"),
RossB> function(x, ...) { # etc
You should *not* define "print" methods for S4 classes;
rather you should define "show" methods.
RossB> The file promptClass creates has no methods in it.
>> showMethods(classes="mspathCoefficients")
RossB> Function: initialize (package methods)
RossB> .Object="mspathCoefficients" (inherited from:
RossB> .Object="ANY")
so it's just inherited from "ANY"
RossB> Function: print (package base)
RossB> x="mspathCoefficients"
that's the one
RossB> Function: show (package methods)
RossB> object="mspathCoefficients"
RossB> (inherited from: object="ANY")
so it's just inherited from "ANY"
Ross, it would really be more polite to your readers if you
followed the posting guide and posted complete
fully-reproducible code...
>> getGeneric("print")
RossB> standardGeneric for "print" defined from package
RossB> "base"
RossB> function (x, ...) standardGeneric("print")
RossB> <environment: 0x84f2d88> Methods may be defined for
RossB> arguments: x
RossB> I've looked through the code for promptClass, but
RossB> nothing popped out at me.
RossB> It may be relevant that I'm running under ESS in
RossB> emacs. However, I get the same results running R
RossB> from the command line.
RossB> Can anyone tell me what's going on here? This is
RossB> with R 2.4, and I'm not currently using any namespace
RossB> for my definitions.
[and not a package either?]
I'm very willing to look at this, once
you've provided what the posting guide asks for, see above.
Regards,
Martin
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