8/25/2023 0 Comments Polyfit matlabThis example involves fitting the error function, erf(x), by a polynomial in x. This centering and scaling transformation improves the numerical properties of both the polynomial and the fitting algorithm. If the errors in the data y are independent normal with constant variance, polyval produces error bounds that contain at least 50% of the predictions.įinds the coefficients of a polynomial in Returns the polynomial coefficients p and a structure S for use with polyval to obtain error estimates or predictions. The result p is a row vector of length n+1 containing the polynomial coefficients in descending powers ![]() ![]() Polyfit (MATLAB Functions) MATLAB Function Referenceįinds the coefficients of a polynomial p(x) of degree n that fits the data, p(x(i)) to y(i), in a least squares sense.
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