BALL::FermiBaseFunction Class Reference

Sigmoidal base function. More...

#include <fermiBaseFunction.h>

Inheritance diagram for BALL::FermiBaseFunction:

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List of all members.

Public Member Functions
	FermiBaseFunction (float lower, float upper)
	The function is defined in such a way that the score approaches 1 for values < lower and 0 for values > upper.
void	setLower (float lower)
void	setUpper (float upper)
float	calculate (float x) const
float	calculate (float x, float lower, float upper)

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Detailed Description

Sigmoidal base function.

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Constructor & Destructor Documentation

BALL::FermiBaseFunction::FermiBaseFunction	(	float	lower,
		float	upper
	)

The function is defined in such a way that the score approaches 1 for values < lower and 0 for values > upper.

If you need contrary behaviour, you have to supply a "lower" which is greater than "upper". This will invert the function.