org.apache.commons.math.optimization.fitting
Class PolynomialFitter.ParametricPolynomial

java.lang.Object
  org.apache.commons.math.optimization.fitting.PolynomialFitter.ParametricPolynomial

All Implemented Interfaces:

ParametricRealFunction

Enclosing class:

PolynomialFitter

private static class PolynomialFitter.ParametricPolynomial
extends java.lang.Object
implements ParametricRealFunction

Dedicated parametric polynomial class.

Constructor Summary

private

PolynomialFitter.ParametricPolynomial()

Method Summary

double[]	gradient(double x, double[] parameters) Compute the gradient of the function with respect to its parameters.
double	value(double x, double[] parameters) Compute the value of the function.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PolynomialFitter.ParametricPolynomial

private PolynomialFitter.ParametricPolynomial()

Method Detail

gradient

public double[] gradient(double x,
                         double[] parameters)

Compute the gradient of the function with respect to its parameters.

Specified by:

gradient in interface ParametricRealFunction

Parameters:

x - the point for which the function value should be computed

parameters - function parameters

Returns:

the value

value

public double value(double x,
                    double[] parameters)

Compute the value of the function.

Specified by:

value in interface ParametricRealFunction

Parameters:

x - the point for which the function value should be computed

parameters - function parameters

Returns:

the value