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My question is: what does the second equation doing? is it for normalization or what? Thanks in advance.

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FAS
FAS on 29 Jan 2018
Closed: MATLAB Answer Bot on 20 Aug 2021
O_E = M * X;
E = ( sum( O_E.^ 2 ) ) ./ ( sum( X .^ 2 ) );
Where:
M = 100*100;
X = 100*500;
O_E = 100*500;
E = 1*500
  2 Comments
Rik
Rik on 29 Jan 2018
You will have to provide more context. It is not very difficult to work out what the second line is doing (just read the documentation), but from your question it is impossible to say why it is doing that.

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