[R] Using a deriv function in nlme

[Dieter Menne]

Lisa Avery <lisa_avery <at> sympatico.ca> writes:

> 
> Hello,
> 
> I have a deriv function that I am feeding to nlme. It works, and I can use
> it in nls, but when I try to use it in nlme I get Error: subscript out of
> bounds.  I can fit the model using SSasympOrig, instead of the deriv

It might by a similar problem as in 

http://finzi.psych.upenn.edu/R/Rhelp02a/archive/4555.html

Dieter Menne