TMVA::Experimental::Objectives Namespace Reference

Functions
template<typename T >
T	Exponential (T value)
	Natural exponential function f(x) = exp(x) More...
template<typename T >
std::function< T(T)>	GetFunction (const std::string &name)
	Get function pointer to implementation from name given as string. More...
template<typename T >
T	Identity (T value)
	Identity function f(x) = x. More...
template<typename T >
T	Logistic (T value)
	Logistic function f(x) = 1 / (1 + exp(-x)) More...

Function Documentation

Exponential()

template<typename T >

T TMVA::Experimental::Objectives::Exponential ( T  value )

inline

Natural exponential function f(x) = exp(x)

This objective is used for the softmax objective in the multiclass case with the formula exp(x)/sum(exp(x)) and the vector x.

Definition at line 51 of file Objectives.hxx.

GetFunction()

template<typename T >

std::function< T(T)> TMVA::Experimental::Objectives::GetFunction

(

const std::string &

name

)

Get function pointer to implementation from name given as string.

Definition at line 58 of file Objectives.hxx.

Identity()

template<typename T >

T TMVA::Experimental::Objectives::Identity ( T  value )

inline

Identity function f(x) = x.

Definition at line 41 of file Objectives.hxx.

Logistic()

template<typename T >

T TMVA::Experimental::Objectives::Logistic ( T  value )

inline

Logistic function f(x) = 1 / (1 + exp(-x))

Definition at line 34 of file Objectives.hxx.