See: Description
| Class | Description | 
|---|---|
| CurveFitter<T extends ParametricUnivariateFunction> | Deprecated As of 3.1 (to be removed in 4.0). | 
| GaussianFitter | Deprecated As of 3.1 (to be removed in 4.0). | 
| GaussianFitter.ParameterGuesser | Guesses the parameters  norm,mean, andsigmaof aGaussian.Parametricbased on the specified observed points. | 
| HarmonicFitter | Deprecated As of 3.1 (to be removed in 4.0). | 
| HarmonicFitter.ParameterGuesser | This class guesses harmonic coefficients from a sample. | 
| PolynomialFitter | Deprecated As of 3.1 (to be removed in 4.0). | 
| WeightedObservedPoint | Deprecated As of 3.1 (to be removed in 4.0). | 
Curve fitting is a special case of a least squares problem
 were the parameters are the coefficients of a function f
 whose graph y=f(x) should pass through sample points, and
 were the objective function is the squared sum of residuals
 f(xi)-yi for observed points
 (xi, yi).
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