Re: [R] iteration history

From: Gabor Grothendieck <ggrothendieck_at_gmail.com>
Date: Tue 07 Feb 2006 - 08:13:11 EST

Check out:

https://www.stat.math.ethz.ch/pipermail/r-devel/2006-January/036034.html

On 2/6/06, Robert Mcfadden <robert-mcfadden@o2.pl> wrote:
> Dear R Users
> I would like to use optim function to optimize a function. I read help but I
> couldn't find what I need: is it possible to get information after each
> iteration, for example as there is in MATLAB:
> Gradient's
> Iteration Func-count f(x) Step-size infinity-norm
> 0 24 388.976 14
> 1 72 385.67 0.0292637 16.8
> 2 96 383.54 1 4.15
> 3 120 383.412 1 0.108
> 4 144 383.412 1 0.002
> 5 168 383.412 1 0.00149
> 6 192 383.412 1 6.23e-005
> 7 216 383.412 1 1.01e-005
>
>
> It is useful when iteration takes long time - I know what's happen
> I would appreciate any suggestion
>
> Robert
>
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R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue Feb 07 08:23:22 2006

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