[R] number of iteration s exceeded maximum of 50
gunter.berton at gene.com
Fri Jun 16 19:20:58 CEST 2006
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: r-help-bounces at stat.math.ethz.ch
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Leaf Sun
> Sent: Friday, June 16, 2006 9:41 AM
> To: Uwe Ligges
> Cc: r-help at stat.math.ethz.ch
> 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!
> > 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]]
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