John, Gabor,
> Thanks Gabor!
>
> I changed the class to "ANY" and it works now. Should there be an "as" 
> method for coercing instantiatedProtoMethod to function, or would that 
> lose the "proto" nature of the object?
>
> (Yvonnick, I checked in the change to r-forge 
> https://r-forge.r-project.org/R/?group_id=761)

Thank you so much for your prompt reaction!

Best wishes,

Yvonnick


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