In SAS, you can output the parameter estimation related to fitness function,
I dont know  this in R.
Once you have output from SAS, you can write down your function and feed
them into optim in R  to solve your problem.



On Mon, Feb 7, 2011 at 5:00 AM, ying zhang <ying.zhang@struq.com> wrote:

> Hi Everyone,
>
>
>
> I need to use genetic algorithm to find the minimum. The problem is,  I
> cannot define the fitness function, but I can build a neural network from
> the input data and use
>
> the output as a fitness function.   Can this be done?
>
>
>
> The other problem is, I know there are a few package in R related to GA.
> So far I know all of them take a specific function as fitness function,
> is
> there any package can
>
> Solve my problem? Many thanks
>
>
>
> Ying
>
>
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>
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>



-- 
Sincerely,
Changbin
--

Changbin Du
DOE Joint Genome Institute
Bldg 400 Rm 457
2800 Mitchell Dr
Walnut Creet, CA 94598
Phone: 925-927-2856

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