org.freehep.math.minuit

Class MnHesse

java.lang.Object

org.freehep.math.minuit.MnHesse

public class MnHesse
extends java.lang.Object

With MnHesse the user can instructs MINUIT to calculate, by finite differences, the Hessian or error matrix. That is, it calculates the full matrix of second derivatives of the function with respect to the currently variable parameters, and inverts it.

Constructor Summary

Constructors

Constructor and Description
MnHesse() default constructor with default strategy
MnHesse(int stra) constructor with user-defined strategy level
MnHesse(MnStrategy stra) conctructor with specific strategy

Method Summary

Modifier and Type	Method and Description
MnUserParameterState	calculate(FCNBase fcn, double[] par, double[] err)
MnUserParameterState	calculate(FCNBase fcn, double[] par, double[] err, int maxcalls) FCN + parameters + errors
MnUserParameterState	calculate(FCNBase fcn, double[] par, MnUserCovariance cov)
MnUserParameterState	calculate(FCNBase fcn, double[] par, MnUserCovariance cov, int maxcalls) FCN + parameters + MnUserCovariance
MnUserParameterState	calculate(FCNBase fcn, MnUserParameters par)
MnUserParameterState	calculate(FCNBase fcn, MnUserParameters par, int maxcalls) FCN + MnUserParameters
MnUserParameterState	calculate(FCNBase fcn, MnUserParameters par, MnUserCovariance cov)
MnUserParameterState	calculate(FCNBase fcn, MnUserParameters par, MnUserCovariance cov, int maxcalls) FCN + MnUserParameters + MnUserCovariance
MnUserParameterState	calculate(FCNBase fcn, MnUserParameterState state, int maxcalls) FCN + MnUserParameterState

Methods inherited from class java.lang.Object

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

Constructor Detail

MnHesse

public MnHesse()

default constructor with default strategy

MnHesse

public MnHesse(int stra)

constructor with user-defined strategy level

MnHesse

public MnHesse(MnStrategy stra)

conctructor with specific strategy

Method Detail

calculate

public MnUserParameterState calculate(FCNBase fcn,
                                      double[] par,
                                      double[] err)

calculate

public MnUserParameterState calculate(FCNBase fcn,
                                      double[] par,
                                      double[] err,
                                      int maxcalls)

FCN + parameters + errors

calculate

public MnUserParameterState calculate(FCNBase fcn,
                                      double[] par,
                                      MnUserCovariance cov)

calculate

public MnUserParameterState calculate(FCNBase fcn,
                                      double[] par,
                                      MnUserCovariance cov,
                                      int maxcalls)

FCN + parameters + MnUserCovariance

calculate

public MnUserParameterState calculate(FCNBase fcn,
                                      MnUserParameters par)

calculate

public MnUserParameterState calculate(FCNBase fcn,
                                      MnUserParameters par,
                                      int maxcalls)

FCN + MnUserParameters

calculate

public MnUserParameterState calculate(FCNBase fcn,
                                      MnUserParameters par,
                                      MnUserCovariance cov)

calculate

public MnUserParameterState calculate(FCNBase fcn,
                                      MnUserParameters par,
                                      MnUserCovariance cov,
                                      int maxcalls)

FCN + MnUserParameters + MnUserCovariance

calculate

public MnUserParameterState calculate(FCNBase fcn,
                                      MnUserParameterState state,
                                      int maxcalls)

FCN + MnUserParameterState