My goodness! This is **NOT** a reproducible example. You need to give us the exact data you fitted to reproduce your results/diagnose your problem.
-- Bert Gunter Genentech Non-Clinical Statistics South San Francisco, CA "The business of the statistician is to catalyze the scientific learning process." - George E. P. Box > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Leaf Sun > Sent: Friday, June 16, 2006 9:41 AM > To: Uwe Ligges > Cc: [email protected] > Subject: Re: [R] number of iteration s exceeded maximum of 50 > > Sorry, I thought it was a straightforward question inside > which I was stuck . > > I used nls( ) to estimate a and b in this function. > > nls(y~ a*x^b,start=list(a=a1,b=b1) > > seems the start list I gave was not able to reach convergence > and it gave notes: number of iteration s exceeded maximum of > 50. Then I put nls.control(maxiter = 50, tol = 1e-05, > minFactor = 1/1024) in nls(.. ), and modified the argument of > maxiter = 500. But it worked out as the same way and noted : > number of iteration s exceeded maximum of 50. I have totally > no idea how to set this parameter MAXITER. > > Thanks for any information! > > Leaf > > > > Hi all, > > > > I found r-site-research not work for me these days. > > > > When I was doing nls( ) , there was an error > "number of iterations exceeded maximum of 50". I set > number in nls.control which is supposed to control > the number of iterations but it didn't work well. > Could anybody with this experience tell me how to > fix it? Thanks in advance! > > We cannot make suggestions unless you tell us what > you tried yourself. > Id possible, please gib4ve a reproducible examle. > > Uwe Ligges > > > Leaf > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > [email protected] mailing list > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > > [[alternative HTML version deleted]] > > ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
