Class PolynomialFitter
java.lang.Object
org.apache.commons.math3.optimization.fitting.CurveFitter<PolynomialFunction.Parametric>
org.apache.commons.math3.optimization.fitting.PolynomialFitter
Deprecated.
As of 3.1 (to be removed in 4.0).
Polynomial fitting is a very simple case of
curve fitting.
The estimated coefficients are the polynomial coefficients (see the
fit method).- Since:
- 2.0
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Constructor Summary
ConstructorsConstructorDescriptionPolynomialFitter(int degree, DifferentiableMultivariateVectorOptimizer optimizer) Deprecated.Since 3.1 (to be removed in 4.0).Deprecated.Simple constructor. -
Method Summary
Modifier and TypeMethodDescriptiondouble[]fit()Deprecated.Since 3.1 (to be removed in 4.0).double[]fit(double[] guess) Deprecated.Get the coefficients of the polynomial fitting the weighted data points.double[]fit(int maxEval, double[] guess) Deprecated.Get the coefficients of the polynomial fitting the weighted data points.Methods inherited from class org.apache.commons.math3.optimization.fitting.CurveFitter
addObservedPoint, addObservedPoint, addObservedPoint, clearObservations, fit, fit, getObservations
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Constructor Details
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PolynomialFitter
@Deprecated public PolynomialFitter(int degree, DifferentiableMultivariateVectorOptimizer optimizer) Deprecated.Since 3.1 (to be removed in 4.0). Please usePolynomialFitter(DifferentiableMultivariateVectorOptimizer)instead.Simple constructor.The polynomial fitter built this way are complete polynomials, ie. a n-degree polynomial has n+1 coefficients.
- Parameters:
degree- Maximal degree of the polynomial.optimizer- Optimizer to use for the fitting.
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PolynomialFitter
Deprecated.Simple constructor.- Parameters:
optimizer- Optimizer to use for the fitting.- Since:
- 3.1
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Method Details
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fit
Deprecated.Since 3.1 (to be removed in 4.0). Please usefit(double[])instead.Get the polynomial fitting the weighted (x, y) points.- Returns:
- the coefficients of the polynomial that best fits the observed points.
- Throws:
ConvergenceException- if the algorithm failed to converge.
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fit
public double[] fit(int maxEval, double[] guess) Deprecated.Get the coefficients of the polynomial fitting the weighted data points. The degree of the fitting polynomial isguess.length - 1.- Parameters:
maxEval- Maximum number of evaluations of the polynomial.guess- First guess for the coefficients. They must be sorted in increasing order of the polynomial's degree.- Returns:
- the coefficients of the polynomial that best fits the observed points.
- Throws:
TooManyEvaluationsException- if the number of evaluations exceedsmaxEval.ConvergenceException- if the algorithm failed to converge.- Since:
- 3.1
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fit
public double[] fit(double[] guess) Deprecated.Get the coefficients of the polynomial fitting the weighted data points. The degree of the fitting polynomial isguess.length - 1.- Parameters:
guess- First guess for the coefficients. They must be sorted in increasing order of the polynomial's degree.- Returns:
- the coefficients of the polynomial that best fits the observed points.
- Throws:
ConvergenceException- if the algorithm failed to converge.- Since:
- 3.1
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