gaussian cdf function More...
#include <sigmoid.h>
Public Member Functions | |
PsiGauss (void) | |
constructor | |
PsiGauss (const PsiGauss &original) | |
copy constructor | |
double | f (double x) const |
value of the sigmoid at x | |
double | df (double x) const |
derivative of the sigmoid at x | |
double | ddf (double x) const |
second derivative of the sigmoid at x | |
double | inv (double p) const |
inverse of the sigmoid | |
int | getcode (void) const |
return the sigmoid identifier | |
PsiSigmoid * | clone (void) const |
clone object by value | |
Static Public Member Functions | |
static std::string | getDescriptor (void) |
get a short string that identifies the type of sigmoid |
gaussian cdf function
The gaussian cdf function is given by f(x) = Phi(x), where Phi is the cumulative distribution function for the gaussian distribution.
double PsiGauss::f | ( | double | x | ) | const [virtual] |