function::SmoothStepFunction Struct Reference

#include <SmoothStepFunction.h>

Public Member Functions
double	operator() (double x) const
	SmoothStepFunction (const Parameter &t)
	SmoothStepFunction (boost::shared_ptr< double > t)
	SmoothStepFunction (double t)

Public Attributes
boost::shared_ptr< double >	trend

Static Public Attributes
static const unsigned int	arguments = 1

Detailed Description

Definition at line 9 of file SmoothStepFunction.h.

Constructor & Destructor Documentation

function::SmoothStepFunction::SmoothStepFunction ( const Parameter &  t )

inline

Definition at line 11 of file SmoothStepFunction.h.

                                            : 
      trend(t.ptr()) { }

function::SmoothStepFunction::SmoothStepFunction ( boost::shared_ptr< double >  t )

inline

Definition at line 13 of file SmoothStepFunction.h.

                                                 : 
      trend(t) { }

function::SmoothStepFunction::SmoothStepFunction ( double  t )

inline

Definition at line 15 of file SmoothStepFunction.h.

                                : 
      trend(new double(t)){}

Member Function Documentation

double function::SmoothStepFunction::operator() ( double  x ) const

inline

Definition at line 17 of file SmoothStepFunction.h.

References create_public_lumi_plots::exp, and trend.

                                      {
      double z = (x - 40)*(*trend);
      if(fabs(z)<0) return 0;
      return 2/(1+exp(-z)) -1;
    }

Member Data Documentation

const unsigned int function::SmoothStepFunction::arguments = 1

static

Definition at line 10 of file SmoothStepFunction.h.

boost::shared_ptr<double> function::SmoothStepFunction::trend

Definition at line 22 of file SmoothStepFunction.h.

Referenced by operator()().