| Package | Description | 
|---|---|
| org.apache.commons.math3.fitting | Classes to perform curve fitting. | 
| org.apache.commons.math3.fitting.leastsquares | This package provides algorithms that minimize the residuals
 between observations and model values. | 
| Modifier and Type | Method and Description | 
|---|---|
| protected LeastSquaresOptimizer | AbstractCurveFitter. getOptimizer()Creates an optimizer set up to fit the appropriate curve. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | GaussNewtonOptimizerGauss-Newton least-squares solver. | 
| class  | LevenbergMarquardtOptimizerThis class solves a least-squares problem using the Levenberg-Marquardt
 algorithm. | 
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