Hi,
Yes, I looked more carefully at the code and realized the parameters
have to be named
and then the gradient is returned so that
SSlogis(3.4,4,5,6) does not return the gradient as an attribute but
Asym<-4
xmid<-5
scal<-6
SSlogis(3.4,Asym,xmid,scal)
does.
However what I am finding more vexing i
On 7/19/05, Nicholas Lewin-Koh <[EMAIL PROTECTED]> wrote:
> Hello,
> I am writing a set of functions to do prediction and calibration
> intervals
> for at least the subset of selfstarting models if not some more general
> ones.
>
> I need to be able to extract the varFunction from a fit object
> a
