[R] Object orientation?

Martyn Plummer plummer at iarc.fr
Wed Jan 24 14:38:02 CET 2001

Have you looked at the scoping demo in source directory demos/language?
I think this will show you how to do it.

On 24-Jan-01 Yves Gauvreau wrote:
> Hi,
> I wonder how one could implement the following idea in R if it's possible of
> course. Say you have an object, lets call it MyO. I would like MyO to
> provides both properties and methods, encapsulation in OOP terms I think. I
> would like to access MyO properties (only) via functions like {get, let,
> set}.
> For example:
>       MyO.get(PropertyName="default", [Index]); where Index defaults to
> item
>       MyO.let(PropertyName="default", Value)
>       MyO.set(PropertyName="default", Value, [Index]); where Index defaults
to a
> new item
> Up to now there is no real problem as I could use the following construct
> for these let and set methods or functions: MyO <-
> MyO.let(PropertyName="ThisProperty", ThisValue).
> But what I would like to be able to do in order to let or set (as above) one
> of MyO properties for example is only use:
> MyO.let(PropertyName="ThisProperty", ThisValue).
> So my question is: Can this be done in a proper and acceptable R fashion?
> I know I could use super assign (<<-) but I think some say it's best
> avoided.
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