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How can calculate R^2 "correlation coefficient' of "robustfit" function?

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Riyadh Muttaleb 2019-1-17

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Hi All,

I am using "robustfit" function for multiplie regression, How can I caculate R^2 (correlation coefficient of this function,

y=a+b*x1+c*x2^n (n ranges between 0.1 to 3)

Thanks

Riyadh

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