ESRecHitFitAlgo.cc File Reference

#include "RecoLocalCalo/EcalRecAlgos/interface/ESRecHitFitAlgo.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "TMath.h"
#include "TGraph.h"
#include <iostream>
#include <cmath>

Go to the source code of this file.

Functions
Double_t	fitf (Double_t *x, Double_t *par)

Function Documentation

fitf()

Double_t fitf	(	Double_t *	x,
		Double_t *	par
	)

Definition at line 11 of file ESRecHitFitAlgo.cc.

References dqmiodumpmetadata::n, funct::pow(), findQualityFiles::v, and x.

Referenced by ESRecHitFitAlgo::ESRecHitFitAlgo().

                                          {
  Double_t wc = 0.07291;
  Double_t n = 1.798;  // n-1 (in fact)
  Double_t v1 = pow(wc / n * (x[0] - par[1]), n);
  Double_t v2 = TMath::Exp(n - wc * (x[0] - par[1]));
  Double_t v = par[0] * v1 * v2;

  if (x[0] < par[1])
    v = 0;

  return v;
}