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writing out the least square expression

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mark wentink
mark wentink 2012-6-14
关闭： MATLAB Answer Bot 2021-8-20
Heya, I am trying to find some variables through the least squares method.
X^2 = SUM(( ( I(i) - I(a,b,K,T(i)))^2 )/Sigma(i)^2).
I am however not sure how to declare my variables. I have my experimental data I(i), my standard deviation Sigma(i) and T(i). But I want Matlab to use the same a, b, K for each iteration. And give a, b, K for which X^2 is minimised.
Could someone point me towards a function/the right syntax, and tell me how I should define the variables and constants?
Thanks a lot, Mark

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