| 1 |
schiefer |
1.1 |
////////////////////////////////////////////////////////////////////////////////
|
| 2 |
|
|
//
|
| 3 |
|
|
// jetcorr
|
| 4 |
|
|
// -------
|
| 5 |
|
|
//
|
| 6 |
|
|
// 07/05/2007 Philipp Schieferdecker <philipp.schieferdecker@cern.ch>
|
| 7 |
|
|
////////////////////////////////////////////////////////////////////////////////
|
| 8 |
|
|
|
| 9 |
|
|
|
| 10 |
|
|
#include "jetcorr.h"
|
| 11 |
|
|
|
| 12 |
|
|
#include <TF1.h>
|
| 13 |
|
|
|
| 14 |
|
|
#include <iostream>
|
| 15 |
|
|
#include <fstream>
|
| 16 |
|
|
#include <sstream>
|
| 17 |
|
|
#include <algorithm>
|
| 18 |
|
|
|
| 19 |
|
|
|
| 20 |
|
|
using namespace std;
|
| 21 |
|
|
|
| 22 |
|
|
|
| 23 |
|
|
////////////////////////////////////////////////////////////////////////////////
|
| 24 |
|
|
// construction/destruction
|
| 25 |
|
|
////////////////////////////////////////////////////////////////////////////////
|
| 26 |
|
|
|
| 27 |
|
|
//______________________________________________________________________________
|
| 28 |
|
|
jetcorr::jetcorr()
|
| 29 |
|
|
{
|
| 30 |
|
|
|
| 31 |
|
|
}
|
| 32 |
|
|
|
| 33 |
|
|
//______________________________________________________________________________
|
| 34 |
|
|
jetcorr::~jetcorr()
|
| 35 |
|
|
{
|
| 36 |
|
|
clear();
|
| 37 |
|
|
}
|
| 38 |
|
|
|
| 39 |
|
|
|
| 40 |
|
|
////////////////////////////////////////////////////////////////////////////////
|
| 41 |
|
|
// implementation of member functions
|
| 42 |
|
|
////////////////////////////////////////////////////////////////////////////////
|
| 43 |
|
|
|
| 44 |
|
|
//______________________________________________________________________________
|
| 45 |
|
|
float jetcorr::eval(float pt,float eta)
|
| 46 |
|
|
{
|
| 47 |
|
|
MapCIter_t it = fitfncs_.lower_bound(eta);
|
| 48 |
|
|
assert(it!=fitfncs_.end());
|
| 49 |
|
|
return 1.0/it->second->Eval(pt);
|
| 50 |
|
|
}
|
| 51 |
|
|
|
| 52 |
|
|
|
| 53 |
|
|
|
| 54 |
|
|
//______________________________________________________________________________
|
| 55 |
|
|
bool jetcorr::initialize(const string& filename)
|
| 56 |
|
|
{
|
| 57 |
|
|
clear();
|
| 58 |
|
|
|
| 59 |
|
|
ifstream fin(filename.c_str());
|
| 60 |
|
|
|
| 61 |
|
|
if (!fin.is_open()) {
|
| 62 |
|
|
cout<<"can't open "<<filename<<endl;
|
| 63 |
|
|
return false;
|
| 64 |
|
|
}
|
| 65 |
|
|
|
| 66 |
|
|
stringstream ss;
|
| 67 |
|
|
bool filter(false);
|
| 68 |
|
|
while (!fin.eof()) {
|
| 69 |
|
|
char next;
|
| 70 |
|
|
fin.get(next);
|
| 71 |
|
|
if (!filter&&next=='#') filter=true;
|
| 72 |
|
|
if(!filter) ss<<next;
|
| 73 |
|
|
if (filter&&next=='\n') filter=false;
|
| 74 |
|
|
}
|
| 75 |
|
|
fin.close();
|
| 76 |
|
|
|
| 77 |
|
|
int netabins;
|
| 78 |
|
|
string fitfncAsString;
|
| 79 |
|
|
int fitfncNbParams;
|
| 80 |
|
|
float eta,par,parerr;
|
| 81 |
|
|
|
| 82 |
|
|
ss>>netabins>>fitfncAsString>>fitfncNbParams;
|
| 83 |
|
|
|
| 84 |
|
|
for (int ieta=0;ieta<netabins;ieta++) {
|
| 85 |
|
|
ss>>eta;
|
| 86 |
|
|
stringstream fname; fname<<"fitfnc_eta"<<eta;
|
| 87 |
|
|
TF1* fitfnc = new TF1(fname.str().c_str(),fitfncAsString.c_str());
|
| 88 |
|
|
fitfncs_[eta] = fitfnc;
|
| 89 |
|
|
for (int ipar=0;ipar<fitfncNbParams;ipar++) {
|
| 90 |
|
|
ss>>par>>parerr;
|
| 91 |
|
|
fitfnc->SetParameter(ipar,par);
|
| 92 |
|
|
fitfnc->SetParError(ipar,parerr);
|
| 93 |
|
|
}
|
| 94 |
|
|
}
|
| 95 |
|
|
|
| 96 |
|
|
return true;
|
| 97 |
|
|
}
|
| 98 |
|
|
|
| 99 |
|
|
|
| 100 |
|
|
//______________________________________________________________________________
|
| 101 |
|
|
void jetcorr::clear()
|
| 102 |
|
|
{
|
| 103 |
|
|
for (MapIter_t it=fitfncs_.begin();it!=fitfncs_.end();++it) delete it->second;
|
| 104 |
|
|
fitfncs_.clear();
|
| 105 |
|
|
}
|
| 106 |
|
|
|
