golib  0.5
Public Member Functions | List of all members
goSignalStat< T > Class Template Reference

#include <gosignalstat.h>

Public Member Functions

goDouble getMean (goSignal3D< T > &signal)
 
goDouble getMeanFast (goSignal3D< T > &signal)
 
goDouble getDeviation (goSignal3D< T > &signal, goDouble __mean)
 
goDouble getEnergy (goSignal3D< T > &signal)
 
goDouble getMean ()
 
goDouble getDeviation ()
 
goDouble getEnergy ()
 

Detailed Description

template<class T>
class goSignalStat< T >

Signal statistics. DEPRECATED, use functions in gosignalhelper.h. Currently supported signal types:

  • goSignal3D, scalar type elements
    Author
    Christian Gosch
    Date
    18.9.2001

Member Function Documentation

◆ getDeviation() [1/2]

template<class T >
goDouble goSignalStat< T >::getDeviation ( )
inline
Returns
The last calculated deviation

◆ getDeviation() [2/2]

template<class T >
goDouble goSignalStat< T >::getDeviation ( goSignal3D< T > &  signal,
goDouble  __mean 
)

Calculates the deviation of a goSignal3D and stores it internally.

Parameters
signalgoSignal3D of which the deviation is to be calculated
Returns
The deviation as a goDouble

◆ getEnergy() [1/2]

template<class T >
goDouble goSignalStat< T >::getEnergy ( )
inline
Returns
The last calculated energy

◆ getEnergy() [2/2]

template<class T >
goDouble goSignalStat< T >::getEnergy ( goSignal3D< T > &  signal)

Calculates the energy of a goSignal3D and stores it internally. The energy of a signal $ f(t) $ is defined as $ \int\limits_{-\infty}^{\infty} \left|f(t)\right|^2 \, dt $. This function computes $ \sum\limits_{n = 0}^{N-1} |f_n|^2 $ with $ f_n $ being the signal samples.

Parameters
signalgoSignal3D of which the energy is to be calculated
Returns
The energy as a goDouble

◆ getMean() [1/2]

template<class T >
goDouble goSignalStat< T >::getMean ( )
inline
Returns
The last calculated mean value

◆ getMean() [2/2]

template<class T >
goDouble goSignalStat< T >::getMean ( goSignal3D< T > &  signal)

Calculates the mean value of a goSignal3D and stores it internally. Uses a lot of divisions. If possible in special cases, use the getMeanFast() method.

Parameters
signalgoSignal3D of which the mean value is to be calculated
Returns
The mean value as a goDouble

◆ getMeanFast()

template<class T >
goDouble goSignalStat< T >::getMeanFast ( goSignal3D< T > &  signal)

Same as getMean(goSignal3D<T>&), but faster. It accumulates and then divides, which means it does not work for large signals and in any case when the signal values were accumulating to result in an overflow. Uses significantly less divisions.

The documentation for this class was generated from the following files: