Re: [Rd] S4 fails to initialize linear hierarchies with intermediate VIRTUAL classes

2012-10-18 Thread John Chambers
On 10/18/12 6:31 AM, Martin Morgan wrote: Initialization of this simple hierarchy A = setClass("A", representation(x="numeric")) setClass("B", contains=c("VIRTUAL", "A")) C = setClass("C", contains="B") fails (neat that setClass returns generators; I hadn't realized that before!) Ye

[Rd] S4 fails to initialize linear hierarchies with intermediate VIRTUAL classes

2012-10-18 Thread Martin Morgan
Initialization of this simple hierarchy A = setClass("A", representation(x="numeric")) setClass("B", contains=c("VIRTUAL", "A")) C = setClass("C", contains="B") fails (neat that setClass returns generators; I hadn't realized that before!) > C(A()) Error: evaluation nested too deeply: infi