inherits() is not to do with S4 classes: it tests inheritance in the base
class system.
See ?is in package 'methods'.
> is(jj, "onion")
[1] TRUE
On Wed, 27 Jun 2007, Robin Hankin wrote:
> Hi
>
> How do I test for an object having a particular virtual class?
>
> In the following, "onion" is a
Hi
How do I test for an object having a particular virtual class?
In the following, "onion" is a virtual class, and "octonion" is
a non-virtual class contained in onion. The last call
to inherits() gives FALSE [R-2.5.0], when inherits.Rd led
me to expect TRUE.
setClass("onion",
rep
