[R] question about setClass

[Uwe Ligges]

Erin Hodgess wrote:
> Hi R People:
> 
> I have a question about setClass please.  I'm working thru "R
> Programming for Bioinformatics".
> 
> Actually, I was wondering if there is such a thing as an updateClass,
> in order to change a "contains" option, please?
> 
> that is, if I had
> 
> setClass("dog",
> representation(name="character",paws="numeric",tail="character"))
> 
> 
> Fair enough.
> 
> Later I want to have a class called "pets".
> 
> setClass("pets",representation(name="character",total="numeric"))
> 
> I want dog to be a subclass of pets.  Do I put in the setClass command
> as it stands with the additional contains="pets", or is there an
> update form to use, please?


No, you cannot update a class definition.

Best,
Uwe


> Hope this makes sense.
> 
> Thanks,
> Sincerely,
> Erin
> 
>