Would you show the exact message you get please.

-- Bert

On Thu, Jan 3, 2013 at 5:22 AM, Karine HEERAH <
karine.heerah@locean-ipsl.upmc.fr> wrote:

> Hi,
>
> I am using the nls function and it stops because the number of iterations
> exceeded 50, but i used the nls.control argument to allow for 500
> iterations. Do you have any idea why it's not working?
>
> fm1 <- nls(npe ~ SSgompertz(npo, Asym, b2, b3), data=f,control=nls.control(
> **maxiter=500))
>
>
> Thanks for your help,
> Cheers,
> Karine.
>
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>



-- 

Bert Gunter
Genentech Nonclinical Biostatistics

Internal Contact Info:
Phone: 467-7374
Website:
http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm

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