hello sir i want to calculate mean square error for my all possible value for the system how to calculate it ?

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irfan 2016-4-1

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https://ww2.mathworks.cn/matlabcentral/answers/276521-hello-sir-i-want-to-calculate-mean-square-error-for-my-all-possible-value-for-the-system-how-to-calc

评论： irfan 2016-4-4

k0=1;
ss=[0,1,2,3];
kk=0;
poss=[];
for ii=1:d
  poss=[poss,k0+(ii-1)*(N/d)];
end 
for ii=1:length(poss)
  k1=poss(ii);
  for jj=ii+1:length(poss)
      k2=poss(jj);
        kk=kk+1;
       k_p(kk,:)=[k1,k2];
 A=[1,  1 ; exp(1i*2*pi)*(k1-1)*(ss(2)/N), exp(1i*2*pi)*(k2-1)*(ss(2)/N) ;exp(1i*2*pi)*(k1-1)*(ss(3)/N) , exp(1i*2*pi)*(k2-1)*(ss(3)/N); exp(1i*2*pi)*(k1-1)*(ss(4)/N), exp(1i*2*pi)*(k2-1)*(ss(4)/N)];
  XF=pinv(A)*XD(:,1)

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Walter Roberson 2016-4-1

Your code is not complete. Some end statements are missing.

What is the mean squared error to be calculated relative to? MSE is used for comparison between two things, not by itself.

What are the parts that are allowed to vary for consideration of "all possible values"? I see that d is not defined so should we take it that f is one of the things that can change?

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