Minimize misfit in MATLAB

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cruxsign
cruxsign 2015-9-29
编辑： cruxsign 2015-10-1
Dear everyone I have codes for calculation of misfit for a distribution of model parameters calculated based on true parameters by a function and stored in a matrix. I have calculated the misfit (Likelihood) for the data. I tried to apply the optimization methods on the misfit matrix, but I haven't been successful so far. I was wondering any one can help me? I need to find the i and j values where M(i,j)=0. Thanks in advance. Cheers
Vp1=3300;
Vs1=1500;
rho1=2390;
Vp2=3850;
Vs2=2000;
rho2=2510;
i1=[pi*5/180 pi*10/180 pi*15/180];
Rpp = zoeppritz(Vp1,Vs1,rho1,Vp2,Vs2,rho2,i1);
zm=Rpp;
clear rho1
clear rho2
rho1 = linspace(2090,2590,101);
rho2 = linspace(2210,2710,101);
MS=zeros(101,101);
for i=1:101
for j=1:101
Rpp1 = zoeppritz(Vp1,Vs1,rho1(1,i),Vp2,Vs2,rho2(1,j),i1);
sigma=.1;
MS(i,j)=(norm(zm-Rpp1)^2)/(sigma^2);
end
end
S = log10(MS);

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