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  • number of iteration s exceeded maximum of 50

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    My goodness! This is **NT** 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
    Message
    From: r-help-bounces (AT) stat (DOT) math.ethz.ch
    [mailto:r-help-bounces (AT) stat (DOT) math.ethz.ch] Behalf Leaf Sun
    Sent: Friday, June 16, 2006 9:41 AM
    To: Uwe Ligges
    Cc: r-help (AT) stat (DOT) 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!
    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
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    R-help (AT) stat (DOT) math.ethz.ch mailing list
    PLEASE do read the posting guide!
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Re: number of iteration s exceeded maximum of 50


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