On Tue, 12 Feb 2008, Peter Dalgaard wrote:
> I stumbled on the following:
>
>> library(stats4)
>> example(mle)
>> confint.default(fit2)
> Error in UseMethod("vcov") : no applicable method for "vcov"
> In addition: Warning message:
> In object$coefficients :
> $ operator not defined for this S4 cl
I stumbled on the following:
> library(stats4)
> example(mle)
> confint.default(fit2)
Error in UseMethod("vcov") : no applicable method for "vcov"
In addition: Warning message:
In object$coefficients :
$ operator not defined for this S4 class, returning NULL
> vcov(fit2)
lymax
