HOW CA I WRITE A OLS CODE FOR THIS FUNCTION?

2012 5 11
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Using the OLS regression I want to minimize the sum of square residual? How can I do it in matlab P=CD*+error Such as P is a Kx1 matrix and C kxn matrix and D*is a kx1 matrix and the error is a Kx1 matrix And D*=exp(-r(tn)*tn) and I want to get the r(tn) which should be a Kx1 matrix ,t =1,2,….n D=arg {min}_(D*) {ε'ε|ε=P-CD*} And D=((C' C))^(-1) C' P COULD SOME BODY SUGGEST A SOLUTION?PLEASE

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回答（1 个）

Sargondjani
Sargondjani 2012-5-11

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there are many tools. have a look at them (for some you need specific toolboxes):
\ (left divide) regress
curvefit
lsqlin (linear least squares) lsqnonlin (non linear least squares)
for more specific problems: fminunc (unconstrained optimization) fmincon (constrained optimization)

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Ashwaq
Ashwaq
2012-5-11

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