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Qingyun Duan

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Lawrence Livermore National Laboratory

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17 May 2005 Screenshot Shuffled Complex Evolution (SCE-UA) Method An efficient and robuse global optimization method. Author: Qingyun Duan optimization, global optimization, sce, genetic algorithm 52 14
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02 Sep 2014 Shuffled Complex Evolution (SCE-UA) Method An efficient and robuse global optimization method. Author: Qingyun Duan Paula

I have to use this optimization algorithm to minimizing a objective function like this:
error = ((((a./(a+b))-mean).^2)./(mean.^2))+(((((a.*b)./((a+b+1).*((a+b).^2)))-variance).^2)./(variance.^2))+(((((2.*(b-a).*(sqrt(a+b+1)))./((a+b+2).*(sqrt(a.*b))))-skewness).^2)./(skewness.^2))

This is a function beta with parameters a and b. I want to calculate a and b minimizing this fuction error.

I dont know how I can impose the limits of a and b in the algorithm. The limits are, a>0,b>0 and b>0.

Thanks all

16 Mar 2014 Shuffled Complex Evolution (SCE-UA) Method An efficient and robuse global optimization method. Author: Qingyun Duan Barnaby

06 Mar 2014 Shuffled Complex Evolution (SCE-UA) Method An efficient and robuse global optimization method. Author: Qingyun Duan guo

Thanks a lot to share your code! Duan Laoshi

16 Jan 2014 Shuffled Complex Evolution (SCE-UA) Method An efficient and robuse global optimization method. Author: Qingyun Duan Sarah

11 Dec 2012 Shuffled Complex Evolution (SCE-UA) Method An efficient and robuse global optimization method. Author: Qingyun Duan Rajan devkota

Hi I was following your Readme but the problem is that there is no funtion for the SIXPAR model. It talks about how to Use SCE-UA Method on the SIXPAR Model but there is nothing about it. Could you include SIXPAR model's code. I'm confused.

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