Package org.hipparchus.fitting

Class GaussianCurveFitter.ParameterGuesser

java.lang.Object

org.hipparchus.fitting.GaussianCurveFitter.ParameterGuesser

Enclosing class:

GaussianCurveFitter

public static class GaussianCurveFitter.ParameterGuesser
extends Object

Guesses the parameters norm, mean, and sigma of a Gaussian.Parametric based on the specified observed points.

Constructor Summary

Constructors

Constructor	Description
ParameterGuesser(Collection<WeightedObservedPoint> observations)	Constructs instance with the specified observed points.

Method Summary

Modifier and Type	Method	Description
double[]	guess()	Gets an estimation of the parameters.

Methods inherited from class java.lang.Object

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

Constructor Details

ParameterGuesser

public ParameterGuesser(Collection<WeightedObservedPoint> observations)

Constructs instance with the specified observed points.

Parameters:

observations - Observed points from which to guess the parameters of the Gaussian.

Throws:

NullArgumentException - if observations is null.

MathIllegalArgumentException - if there are less than 3 observations.

Method Details

guess

public double[] guess()

Gets an estimation of the parameters.

Returns:

the guessed parameters, in the following order:

• Normalization factor
• Mean
• Standard deviation