org.apache.commons.math3.fitting
Class GaussianFitter.ParameterGuesser

java.lang.Object
  org.apache.commons.math3.fitting.GaussianFitter.ParameterGuesser

Enclosing class:

GaussianFitter

public static class GaussianFitter.ParameterGuesser
extends Object

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

Constructor Summary

GaussianFitter.ParameterGuesser(WeightedObservedPoint[] observations)
Constructs instance with the specified observed points.

Method Summary

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 Detail

GaussianFitter.ParameterGuesser

public GaussianFitter.ParameterGuesser(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.

NumberIsTooSmallException - if there are less than 3 observations.

Method Detail

guess

public double[] guess()

Gets an estimation of the parameters.

Returns:

the guessed parameters, in the following order:

• Normalization factor
• Mean
• Standard deviation