Please read the posting guide and use a sensible subject line, tell us
about the R version you are using, and add a *reproducible* example.
We get:
Error in nls(npe ~ SSgompertz(npo, Asym, b2, b3), data = f, control =
nls.control(maxiter = 500)) :
object 'f' not found
Best,
Uwe Ligges
On 04.01.2013 15:52, Karine HEERAH 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))
Error in nls(y ~ exp(-b2 * b3^x), data = xy, algorithm = "plinear", start =
c(b2 = pars[["b1"]], :
number of iterations exceeded maximum of 50
Thanks for your help,
Cheers,
Karine.
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______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
