The method CalcPolyFit calculates the best fit for a polynomial of order nOrder. The order of the polynomial is restricted to values between 1 and MaxPolyFitOrder. The variable array parameter kArray returns the polynomial coefficients, the variable parameter FitQual returns the goodness of fit. The function CalcPolyFit returns a TRUE value if the fit has been calculated successfully, and the returned parameters are valid. Numerical instabilities which may arise from near-singular equations are indicated by returning a TRUE value in the variable parameter NearSingular. In this case the calculated polynomial coefficients should not be used.
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