[R] Fitting Richards' curve

[Peter Dalgaard]

Shouldn't be hard to set up with nls(). (I kind of suspect that the Richards curve has more flexibility than data can resolve, especially the subset (Q,B,nu) seems highly related, but hey, it's your data...)

-pd 

> On 13 May 2020, at 11:26 , Christofer Bogaso <bogaso.christofer using gmail.com> wrote:
> 
> Hi,
> 
> Is there any R package to fit Richards' curve in the form of
> https://en.wikipedia.org/wiki/Generalised_logistic_function
> 
> I found there is one package grofit, but currently defunct.
> 
> Any pointer appreciated.
> 
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-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
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