[R] Fitting problem

[Petr PIKAL]

r-help-bounces at r-project.org napsal dne 27.09.2010 13:36:51:

> 
> Oops I forgot to add another line to the code (see below)!!  You could 
add

I do not have the previous code, I do not keep mails.

> some noise if you want to.  Generating the data from the function was 
merely

You want to add some noise. nls ***does not work*** for artificial data 
without noise as stated in help page.

Regards
Petr

> a way to test if the fitting procedure works - I have experimental data 
that
> should allow me to calculate the parameters mu, sig, chi and Ms based 
upon
> my input M, H and diameter.
> 
> df <- data.frame(H=htest,M=mtest)
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