On Sat, 3 Jun 2023 11:50:59 -0400
Mikael Jagan wrote:
> > setOldClass("qr")
> > setMethod("qr.X", signature(qr = "qr"), function(qr, complete,
> > ncol) NULL)
>
> The formals of the newly generic 'qr.X' are inherited from the
> non-generic function in the base namespace. Notabl
On Sat, Jun 3, 2023 at 11:51 AM Mikael Jagan wrote:
> The formals of the newly generic 'qr.X' are inherited from the non-generic
> function in the base namespace. Notably, the inherited default value of
> formal argument 'ncol' relies on lazy evaluation:
>
> > formals(qr.X)[["ncol"]]
>
I agree that this is not an R issue, but rather user error of not defining a
proper generic so the check is right. Obviously, defining a generic with
implementation-specific ncol default makes no sense at all, it should only be
part of the method implementation. If one was to implement the same
