Fitf_langaus Class Reference

Landau-Gauss-convolution. More...

#include <FitFunctions.h>

Public Member Functions
double	operator() (double *x, double *par)

Detailed Description

Landau-Gauss-convolution.

Used for large photon yields.
From https://root.cern.ch/doc/master/langaus_8C.html =>
In the Landau distribution (represented by the CERNLIB approximation),
the maximum is located at x=-0.22278298 with the location parameter=0.
This shift is corrected within this function, so that the actual
maximum is identical to the MP parameter.

Definition at line 312 of file FitFunctions.h.

Member Function Documentation

operator()()

double Fitf_langaus::operator() ( double *  x, double *  par  )

inline

Parameters

x
par	par[0]=Width (scale) parameter of Landau density par[1]=Most Probable (MP, location) parameter of Landau density par[2]=Total area (integral -inf to inf, normalization constant) par[3]=Width (sigma) of convoluted Gaussian function

Returns

Func value

Definition at line 321 of file FitFunctions.h.

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

• src/utils/FitFunctions.h