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 gib´ve 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
