Package org.apache.commons.math3.fitting
Class PolynomialFitter
- java.lang.Object
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- org.apache.commons.math3.fitting.CurveFitter<PolynomialFunction.Parametric>
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- org.apache.commons.math3.fitting.PolynomialFitter
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@Deprecated public class PolynomialFitter extends CurveFitter<PolynomialFunction.Parametric>
Deprecated.As of 3.3. Please usePolynomialCurveFitter
andWeightedObservedPoints
instead.Polynomial fitting is a very simple case ofcurve fitting
. The estimated coefficients are the polynomial coefficients (see thefit
method).- Since:
- 2.0
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Constructor Summary
Constructors Constructor Description PolynomialFitter(MultivariateVectorOptimizer optimizer)
Deprecated.Simple constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description 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.fitting.CurveFitter
addObservedPoint, addObservedPoint, addObservedPoint, clearObservations, fit, fit, getObservations
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Constructor Detail
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PolynomialFitter
public PolynomialFitter(MultivariateVectorOptimizer optimizer)
Deprecated.Simple constructor.- Parameters:
optimizer
- Optimizer to use for the fitting.
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Method Detail
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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:
guess
- First guess for the coefficients. They must be sorted in increasing order of the polynomial's degree.maxEval
- Maximum number of evaluations of the polynomial.- 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.
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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.
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