CWB_Plugin_Gating_QLWveto.C

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// -------------------------------------------------------------------------
// WARNING, NOT EDIT : This is a multi plugin generated with cwb_mplugin !!!
// NOTE              : The main is listed on the bottom                      
// 
// INPUT PLUGINS     :                                                       
// 
// 1 - CWB_Plugin_Gating.C
// 2 - CWB_Plugin_QLWveto.C
// 
// -------------------------------------------------------------------------
 
 
// -------------------------------------------------------------------------
// --> BEGIN CWB_USER PLUGIN CODE 1
// 
// CWB_Plugin_Gating.C
// -------------------------------------------------------------------------
 
#define XIFO 4
 
#pragma GCC system_header
 
#include "cwb.hh"
#include "cwb2G.hh"
#include "config.hh"
#include "network.hh"
#include "wavearray.hh"
#include "TString.h"
#include "TObjArray.h"
#include "TObjString.h"
#include "TRandom.h"
#include "Toolbox.hh"
 
namespace CWB_UserPluginNamespace_1 {
 
//!DATA_CONDITIONING
 
// This plugin implements the time gating in the pixel's selection stage.
// Gating is a veto of the pixels belonging to a time interval.
// This plugin is used to exclude from the analysis the pixels 
// in a time interval where there is a huge glitch.
// Huge glitches are harmful because they affect the correct estimation 
// of the selection threshold and could mask the nearby events at lower SNR. 
// Warning : events with high SNR can be rejected by this procedure (see SETHR)
 
}
#define SETHR  1000000  // Is the threshold which define the time slices to be cutted
namespace CWB_UserPluginNamespace_1 {
 
                        // Warning : this value depends on the frequency interval [fHigh:fLow] 
 
}
#define TWIN    0.5     // Is the window (sec) used to integrate the energies in time
namespace CWB_UserPluginNamespace_1 {
 
                        // TWIN must be a multiple of the greatest time resolution used in the analysis 
 
}
#define TEDG   1.5   // Is the time window (sec) to be cutted when the time integrated energy is > SETHR
 
namespace CWB_UserPluginNamespace_1 {
 
void 
CWB_Plugin(TFile* jfile, CWB::config* cfg, network* net, WSeries<double>* x, TString ifo, int type)  {
 
// this plugin is called in cwb2G.cc to the whitened data at the beginning of the COHERENT stage
 
//  cout << endl;
//  cout << "-----> CWB_Plugin_Gating.C" << endl;
//  cout << "ifo " << ifo.Data() << endl;
//  cout << "type " << type << endl;
//  cout << endl;
 
  if(type==CWB_PLUGIN_CONFIG) {
    cout << endl;
    cout << "-----> CWB_Plugin_Gating.C" << endl;
    cout << endl;
  }
 
  if(type==CWB_PLUGIN_ICOHERENCE) {
 
    // get data range
    cwb2G* gCWB2G; IMPORT(cwb2G*,gCWB2G)
    double Tb = gCWB2G->GetSegBegin()-cfg->segEdge;
    double Te = gCWB2G->GetSegEnd()+cfg->segEdge;
 
 
    //cout << "CWB_Plugin_Gating.C - " << "Tb : " << int(Tb) << " Te : " << int(Te) << endl; 
 
    int nIFO = (gCWB2G->IsSingleDetector()) ? 1 : net->ifoListSize();   // number of detectors
    int    size = net->getifo(0)->getHoT()->size();            // number of time bins
    double rate = net->getifo(0)->getHoT()->rate();            // rate
    double dt = 1./rate;                           // time bin resolution (sec)
 
    //cout << "-----> CWB_Plugin_Gating.C - size : " << size << "\t rate : " << rate << "\t dt : " << dt << " length(sec) " << size*dt << endl;                            
 
    wavearray<double>* hot[NIFO_MAX];  
    for(int n=0; n<nIFO; n++) hot[n] = net->getifo(n)->getHoT();  // whitened data
 
    // A new array 'SE' is obtained from the arrays 'hot whitened data'
    // It contains the time integrated energies over the time window TWIN
    // A time sample is marked as to be vetoed when the energy SE>SETHR
    // When a time sample 'i' is vetoed also the nearby M time size are vetoed [i-M:i+M]
    // where M is the number of samples contained in TEDG sec 
 
    int X = int(cfg->segEdge/dt+0.5);  // samples in segEdge : this the is scratch time
    int M = int(TEDG/dt)+1;      // samples in TEDG sec
    int N = int(TWIN/dt);     // number of time samples in TWIN
    if(N<1) N=1;
    vector<waveSegment> glist;      // gating segment list
    wavearray<double> SE(size);
    wavearray<int> sVeto(size);     // array which contains samples to be vetoed
 
    int gsize=0;
    for(int n=0; n<nIFO; n++) {     // loop over detectors
      SE=0;
//      for(int i=N-1;i<size;i++) for(int j=0;j<N;j++) SE[i]+=pow(hot[n]->data[i-j],2);
 
      for(int j=0;j<N;j++) SE[N-1]+=pow(hot[n]->data[N-1-j],2);
      for(int i=N;i<size;i++) {
        SE[i]  = SE[i-1];
        SE[i] -= pow(hot[n]->data[i-N],2);
        SE[i] += pow(hot[n]->data[i],2);
      }
 
      sVeto=0;
      for(int i=0;i<size;i++) {
        if(SE[i]>SETHR) {     
          int is = i-M>X ? i-M : X; 
          int es = i+M<(size-X) ? i+M : size-X; 
          for(int k=is;k<es;k++) sVeto[k]=1;
        }
      }
      // array derivative -> gating_start=1, gating_stop=-1
      sVeto[0]=0;sVeto[size-1]=0;
      for(int i=0;i<size-1;i++) sVeto[i]=sVeto[i+1]-sVeto[i];
 
      // build the gating segment list
      waveSegment gseg;             // gating segment
      gseg.index = 0;
      for(int i=0;i<size;i++) {
        if(sVeto[i]== 1) gseg.start = Tb+int(i*dt);   // round to nearest lower integer
        if(sVeto[i]==-1) {
          gseg.stop  = Tb+int(i*dt+0.5);     // round to nearest higher integer
          gseg.index++;
          glist.push_back(gseg);
        }
      } 
 
      if(glist.size()>0) {
        cout << endl;
        cout.precision(10);
        for(int j=gsize;j<glist.size();j++) {
          cout << j << " -----> CWB_Plugin_Gating.C - " << net->getifo(n)->Name << " gating time : start="
               << glist[j].start << " stop=" << glist[j].stop << " len=" << glist[j].stop-glist[j].start << endl;
        }
        cout << endl;
        gsize=glist.size();
      }
    }                                                                                               
 
    double gating_time = 0;                  // total gating time
    if(glist.size()) { 
      glist = CWB::Toolbox::unionSegments(glist);           // Join & sort a waveSegment list
      gating_time = CWB::Toolbox::getTimeSegList(glist);    // get total gating time
      glist = CWB::Toolbox::invertSegments(glist);          // Invert waveSegment list
      net->segList = CWB::Toolbox::mergeSegLists(glist,net->segList);   // merge gating veto list to the net->segList
    }
 
    cout<< "-----> CWB_Plugin_Gating.C - gating time : " << gating_time << endl << endl; 
 
    // add infos to history
    char info[256];
    sprintf(info,"-GT:%g",gating_time);
    gCWB2G->PrintAnalysisInfo(CWB_STAGE_COHERENCE,"cwb2G::Coherence",info,false);
  }
 
  return;
}
}
 
// -------------------------------------------------------------------------
// --> END CWB_USER PLUGIN CODE 1
// 
// CWB_Plugin_Gating.C
// -------------------------------------------------------------------------
 
 
// -------------------------------------------------------------------------
// --> BEGIN CWB_USER PLUGIN CODE 2
// 
// CWB_Plugin_QLWveto.C
// -------------------------------------------------------------------------
 
#define XIFO 4
 
#pragma GCC system_header
 
#include "cwb.hh"
#include "config.hh"
#include "network.hh"
#include "wavearray.hh"
#include "TString.h"
#include "TObjArray.h"
#include "TObjString.h"
#include "TRandom.h"
#include "TComplex.h"
#include "TMath.h"
#include "mdc.hh"
#include "watplot.hh"
#include "gwavearray.hh"
#include <vector>
 
namespace CWB_UserPluginNamespace_2 {
 
//#define PLOT_LIKELIHOOD
//#define PLOT_WHITENED_WAVEFORMS
 
}
#define NTHR 1       
#define ATHR 7.58859       
 
namespace CWB_UserPluginNamespace_2 {
 
float GetQveto(wavearray<double>* wf);
void  GetLveto(netcluster* pwc, int cid, int nifo, float* Lveto);
void  GetWveto(netcluster* pwc, int cid, int nifo, float* Wveto);
void  PlotWaveform(TString ifo, wavearray<double>* wfREC,
                   CWB::config* cfg, bool fft=false, bool strain=false);
void ClearWaveforms(detector* ifo);
 
 
void 
CWB_Plugin(TFile* jfile, CWB::config* cfg, network* NET, WSeries<double>* x, TString ifo, int type)  {
//!MISCELLANEA
// Extract whitened reconstructed waveforms, and compute the Qveto, Lveto & Wveto parameters
 
  cout << endl;
  cout << "-----> CWB_Plugin_QLWveto.C" << endl;
  cout << "ifo " << ifo.Data() << endl;
  cout << "type " << type << endl;
  cout << endl;
 
  float Qveto[2*NIFO_MAX];          // Qveto
  float Lveto[3];                                  // Lveto
  float Wveto[2];                                  // Wveto
 
  if(type==CWB_PLUGIN_CONFIG) {  
    cfg->outPlugin=true;            // disable built-in output root file
  }
 
  if(type==CWB_PLUGIN_ILIKELIHOOD) {
    NET->wfsave=true;                                   // enable waveform save
 
    // search output root file in the system list
    TFile* froot = NULL;                         
    TList *files = (TList*)gROOT->GetListOfFiles();
    TString outDump="";
    netevent* EVT;
    int nIFO = NET->ifoListSize();        // number of detectors
    if (files) {                                   
      TIter next(files);                           
      TSystemFile *file;                           
      TString fname;                               
      bool check=false;                            
      while ((file=(TSystemFile*)next())) {        
         fname = file->GetName();                  
         // set output root file as the current file
         if(fname.Contains("wave_")) {
           froot=(TFile*)file;froot->cd();
           outDump=fname;
           outDump.ReplaceAll(".root.tmp",".txt");
           //cout << "output file name : " << fname << endl;
         }
      }                                                               
      if(!froot) {                                                    
        cout << "CWB_Plugin_QLWveto.C : Error - output root file not found" << endl;
        gSystem->Exit(1);                                                                             
      }                                                                                      
    } else {                                                                                 
      cout << "CWB_Plugin_QLWveto.C : Error - output root file not found" << endl;  
      gSystem->Exit(1);                                                                               
    }                                                                                        
 
    TTree* net_tree = (TTree *) froot->Get("waveburst");
    if(net_tree==NULL) {
      EVT = new netevent(nIFO);
      net_tree = EVT->setTree();
      net_tree->Branch("Qveto",Qveto,TString::Format("Qveto[%i]/F",2*cfg->nIFO));
      net_tree->Branch("Lveto",Lveto,TString::Format("Lveto[%i]/F",3));
      net_tree->Branch("Wveto",Wveto,TString::Format("Wveto[%i]/F",2));
    }
  }
 
  if(type==CWB_PLUGIN_OLIKELIHOOD) {
 
    if(TString(cfg->analysis)!="2G") {
      cout << "CWB_Plugin_QLWveto.C -> "
           << "CWB_PLUGIN_OLIKELIHOOD implemented only for 2G" << endl;
      gSystem->Exit(1);
    }
 
    // import ifactor
    int gIFACTOR=-1; IMPORT(int,gIFACTOR)
    cout << "-----> CWB_Plugin_QLWveto.C -> " 
         << " gIFACTOR : " << gIFACTOR << endl;
 
    // import slagShift
    float* gSLAGSHIFT=NULL; IMPORT(float*,gSLAGSHIFT)
 
    int nIFO = NET->ifoListSize();        // number of detectors
    int K = NET->nLag;              // number of time lag          
    netevent* EVT;
    wavearray<double> id;
    //double factor = cfg->simulation==3||cfg->simulation==4 ? -gIFACTOR : cfg->factors[gIFACTOR];                 
    double factor = cfg->factors[gIFACTOR];                 
    int rate = 0;             // select all resolutions
 
    // search output root file in the system list
    TFile* froot = NULL;                         
    TList *files = (TList*)gROOT->GetListOfFiles();
    TString outDump="";
    if (files) {                                   
      TIter next(files);                           
      TSystemFile *file;                           
      TString fname;                               
      bool check=false;                            
      while ((file=(TSystemFile*)next())) {        
         fname = file->GetName();                  
         // set output root file as the current file
         if(fname.Contains("wave_")) {
           froot=(TFile*)file;froot->cd();
           outDump=fname;
           outDump.ReplaceAll(".root.tmp",".txt");
           //cout << "output file name : " << fname << endl;
         }
      }                                                               
      if(!froot) {                                                    
        cout << "CWB_Plugin_QLWveto.C : Error - output root file not found" << endl;
        gSystem->Exit(1);                                                                             
      }                                                                                      
    } else {                                                                                 
      cout << "CWB_Plugin_QLWveto.C : Error - output root file not found" << endl;  
      gSystem->Exit(1);                                                                               
    }                                                                                        
 
    TTree* net_tree = (TTree *) froot->Get("waveburst");
    if(net_tree!=NULL) {
      EVT = new netevent(net_tree,nIFO);
      net_tree->SetBranchAddress("Qveto",Qveto);
      net_tree->SetBranchAddress("Lveto",Lveto);
      net_tree->SetBranchAddress("Wveto",Wveto);
    } else {
      EVT = new netevent(nIFO);
      net_tree = EVT->setTree();
      net_tree->Branch("Qveto",Qveto,TString::Format("Qveto[%i]/F",2*cfg->nIFO));
      net_tree->Branch("Lveto",Lveto,TString::Format("Lveto[%i]/F",3));
      net_tree->Branch("Wveto",Wveto,TString::Format("Wveto[%i]/F",2));
    }
    EVT->setSLags(gSLAGSHIFT);               // set slags into netevent
 
    for(int k=0; k<K; k++) {              // loop over the lags
 
      id = NET->getwc(k)->get(const_cast<char*>("ID"), 0, 'L', rate);
 
      for(int j=0; j<(int)id.size(); j++) {        // loop over cluster index
 
        int ID = size_t(id.data[j]+0.5);
 
        if(NET->getwc(k)->sCuts[ID-1]!=-1) continue;    // skip rejected/processed clusters
 
        double ofactor=0;
        if(cfg->simulation==4)      ofactor=-factor;
        else if(cfg->simulation==3) ofactor=-gIFACTOR;
        else                        ofactor=factor;
 
        EVT->output2G(NULL,NET,ID,k,ofactor);      // get reconstructed parameters
 
        wavearray<double>** pwfREC = new wavearray<double>*[nIFO];
        detector* pd = NET->getifo(0);
        int idSize = pd->RWFID.size();
 
        int wfIndex=-1;
        for (int mm=0; mm<idSize; mm++) if (pd->RWFID[mm]==ID) wfIndex=mm;
        if(wfIndex==-1) continue;
 
        netcluster* pwc = NET->getwc(k);
        cout << endl << "----------------------------------------------------------------" << endl;
        GetLveto(pwc, ID, nIFO, Lveto);
        cout << "Lveto : " << "fmean : " << Lveto[0] << " frms : " << Lveto[1] 
             << " Energy Ratio : " << Lveto[2] << endl << endl;
        GetWveto(pwc, ID, nIFO, Wveto);
        cout << "Wveto : " << " Slope : " << Wveto[0] << " Correlation : " << Wveto[1] << endl << endl;
 
        // extract whitened reconstructed waveforms
        for(int n=0; n<nIFO; n++) {
 
           pd = NET->getifo(n);
 
           pwfREC[n] = pd->RWFP[wfIndex];
           wavearray<double>* wfREC = pwfREC[n];   // array of reconstructed waveforms
 
#ifdef PLOT_WHITENED_WAVEFORMS
           //PlotWaveform(NET->ifoName[n], wfREC, cfg, false, false);
           PlotWaveform(NET->ifoName[n], wfREC, cfg, true, false);
#endif
      // reconstructed whitened waveform
           NET->getMRAwave(ID,k,'S',0,true);
           Qveto[n] = GetQveto(&(pd->waveForm));
      // whitened waveform
           NET->getMRAwave(ID,k,'W',0,true);
           Qveto[n+nIFO] = GetQveto(&(pd->waveBand));
 
           //Qveto[n] = GetQveto(wfREC);
           cout << "Qveto : " << pd->Name << " Qveto[R] = " << Qveto[n] 
                                          << " Qveto[W] = " << Qveto[n+nIFO] << endl;
 
           if(!cfg->simulation) ClearWaveforms(pd);   // release waveform memory
        }
        cout << "----------------------------------------------------------------" << endl;
        delete [] pwfREC;
 
        std::vector<int> sCuts = NET->getwc(k)->sCuts;  // save cCuts
        // set sCuts=1 to the events which must be not copied with cps to pwc
        for(int i=0; i<(int)sCuts.size(); i++) if(i!=ID-1) NET->getwc(k)->sCuts[i]=1;
 
        // ID can not be used to get the event, to get event use ID=1 (ex: for watplot)
        NET->getwc(k)->sCuts = sCuts;                   // restore cCuts
 
        if(cfg->dump) EVT->dopen(outDump.Data(),const_cast<char*>("a"),false);
        EVT->output2G(net_tree,NET,ID,k,ofactor);       // get reconstructed parameters
        if(cfg->dump) {                                 
          // add Qveto to dump file
          fprintf(EVT->fP,"Qveto:      ");
          for(int i=0; i<2*nIFO; i++) fprintf(EVT->fP,"%f ",Qveto[i]);
          fprintf(EVT->fP,"\n");
          // add Lveto to dump file
          fprintf(EVT->fP,"Lveto:      ");
          for(int i=0; i<3; i++) fprintf(EVT->fP,"%f ",Lveto[i]);
          fprintf(EVT->fP,"\n");
          // add Wveto to dump file
          fprintf(EVT->fP,"Wveto:      ");
          for(int i=0; i<2; i++) fprintf(EVT->fP,"%f ",Wveto[i]);
          fprintf(EVT->fP,"\n");
        }
        if(cfg->dump) EVT->dclose();
        if(!cfg->cedDump) NET->getwc(k)->sCuts[ID-1]=1; // mark as processed
      }
    }
 
    jfile->cd();
    if(EVT) delete EVT;
  }
  return;
}
 
float
GetQveto(wavearray<double>* wf) { 
 
  wavearray<double> x = *wf;; 
 
  // resample data by a factor 4
  int xsize=x.size();
  x.FFTW(1);
  x.resize(4*x.size());
  x.rate(4*x.rate());
  for(int j=xsize;j<x.size();j++) x[j]=0;
  x.FFTW(-1);
 
  // extract max/min values and save the absolute values in the array 'a'
  wavearray<double> a(x.size());
  int size=0;
  double dt = 1./x.rate();
  double prev=x[0];
  double xmax=0;
  for (int i=1;i<x.size();i++) {
    if(fabs(x[i])>xmax) xmax=fabs(x[i]);
    if(prev*x[i]<0) {
      a[size]=xmax;
      size++;
      xmax=0;
    }
    prev=x[i];
  }
 
  // find max value/index ans save on  amax/imax  
  int imax=-1;
  double amax=0;
  for (int i=1;i<size;i++) {
    if(a[i]>amax) {amax=a[i];imax=i;}
  }
 
/*
  cout << endl;
  cout << "a[imax-2] " << a[imax-2] << endl;
  cout << "a[imax-1] " << a[imax-1] << endl;
  cout << "a[imax]   " << a[imax] << endl;
  cout << "a[imax+1] " << a[imax+1] << endl;
  cout << "a[imax+2] " << a[imax+2] << endl;
  cout << endl;
*/
 
  // compute Qveto 
  double ein=0;   // energy of max values inside NTHR
  double eout=0;  // energy of max values outside NTHR
  for (int i=0;i<size;i++) {
    if(abs(imax-i)<=NTHR) {
      ein+=a[i]*a[i];
      //cout << i << " ein " << a[i] << " " << amax << endl;
    } else {
      if(a[i]>amax/ATHR) eout+=a[i]*a[i];
      //if(a[i]>amax/ATHR) cout << i << " eout " << a[i] << " " << amax << endl;
    }
  }
  float Qveto = ein>0 ? eout/ein : 0.;
  //cout << "Qveto : " << Qveto << " ein : " << ein << " eout : " << eout << endl;
 
  return Qveto;
}
 
void 
GetLveto(netcluster* pwc, int cid, int nifo, float* Lveto) {
//          
// input                                                                                      
//        pwc    : pointer to netcluster object                                                          
//        cid    : cluster id                                                                            
//        nifo   : number of detectors      
// output                                                             
//     Lveto[0]  : line frequency
//     Lveto[1]  : line bandwitdh
//     Lveto[2]  : line enery ratio (line_energy / total_energy)
//   
                                                                                             
  Lveto[0] = Lveto[1] = Lveto[2] = 0;
 
  std::vector<int>* vint = &(pwc->cList[cid-1]);        // pixel list
  int V = vint->size();                                 // cluster size
  if(!V) return;                                                       
 
  // ------------------------------------------------------------------
  // Find max pixel parameters                                          
  // ------------------------------------------------------------------
 
  double likeMax=0;  // maximum pixel's energy 
  double likeTot=0;  // total cluster energy
  double freqMax; // frequency of the pixel with max energy
  double dfreqMax;   // df of the pixel with max energy
  for(int n=0; n<V; n++) {
    netpixel* pix = pwc->getPixel(cid,n);
    if(pix->layers%2==0) {        
      cout << "CWB_Plugin_QLWveto.C - Error : is enabled only for WDM (2G)" << endl;
      exit(1);                                                                                     
    }                                                                                              
    if(!pix->core) continue;                  // select only the principal components pixels
 
    double likePix=0;                                                                       
    for(int m=0; m<nifo; m++) {                                                          
      likePix += pow(pix->getdata('S',m),2);  // like whitened reconstructed signal 00
      likePix += pow(pix->getdata('P',m),2);  // like whitened reconstructed signal 90
    }                                                                                     
 
    double freq = pix->frequency*pix->rate/2.; 
    double df = pix->rate/2.;
 
    likeTot+=likePix;
    if(likePix>likeMax) {likeMax=likePix;freqMax=freq;dfreqMax=df;}
  }
  //cout << "likeMax : " << likeMax << " likeTot : " << likeTot 
  //     << " freqMax : " << freqMax << " dfreqMax : " << dfreqMax << endl;
 
  // ------------------------------------------------------------------
  // Compute Lveto parameters                                          
  // ------------------------------------------------------------------
 
  double fmean=0; // line mean frequency
  double frms=0;  // line bandwidth 
  double likeLin=0;  // line energy
  for(int n=0; n<V; n++) {
    netpixel* pix = pwc->getPixel(cid,n);
    if(!pix->core) continue;                  // select only the principal components pixels
 
    double likePix=0;                                                                       
    for(int m=0; m<nifo; m++) {                                                          
      likePix += pow(pix->getdata('S',m),2);  // like whitened reconstructed signal 00
      likePix += pow(pix->getdata('P',m),2);  // like whitened reconstructed signal 90
    }                                                                                     
 
    // the estimation is done for all pixels 
    // with freq in the range [freqMax-dfreqMax, freqMax+dfreqMax]
    double freq = pix->frequency*pix->rate/2.; 
    if(fabs(freq-freqMax)<=dfreqMax) {
      likeLin += likePix;
      fmean   += likePix*freq;
      frms    += likePix*freq*freq;
    }
  }                                                                   
   
  fmean = fmean/likeLin;
  frms  = frms/likeLin-fmean*fmean;
  frms  = frms>0 ? sqrt(frms) : 0.;
 
  if(frms<dfreqMax/2.) frms=dfreqMax/2.;
 
  // ------------------------------------------------------------------
  // Save Lveto parameters                                          
  // ------------------------------------------------------------------
 
  Lveto[0] = fmean;              // line mean frequency     
  Lveto[1] = frms;               // line bandwidth   
  Lveto[2] = likeTot>0. ? likeLin/likeTot : 0.; // energy ratio energy inside_line/total
 
  // ------------------------------------------------------------------
  // plot time-frequency energy                                             
  // ------------------------------------------------------------------
 
#if defined PLOT_LIKELIHOOD 
  watplot WTS(const_cast<char*>("wts"));
  WTS.plot(pwc, cid, nifo, 'L', 0, const_cast<char*>("COLZ"));
  WTS.canvas->Print("l_tfmap_scalogram.png");
#endif
 
  return;
}
 
void 
GetWveto(netcluster* pwc, int cid, int nifo, float* Wveto) {
//          
// input                                                                                      
//        pwc    : pointer to netcluster object                                                          
//        cid    : cluster id                                                                            
//        nifo   : number of detectors      
// output                                                             
//     Wveto[0]  : whistle slope
//     Wveto[1]  : whistle correlation
//   
                                                                                             
  Wveto[0] = Wveto[1] = 0;
 
  std::vector<int>* vint = &(pwc->cList[cid-1]);        // pixel list
  int V = vint->size();                                 // cluster size
  if(!V) return;                                                       
 
  std::vector<double> x;
  std::vector<double> y;
  std::vector<double> w;
  
  // extract pixels                                             
  for(int j=0; j<V; j++) {                  
    netpixel* pix = pwc->getPixel(cid,j);
    if(pix->layers%2==0) {        
      cout << "CWB_Plugin_QLWveto.C - Error : is enabled only for WDM (2G)" << endl;
      exit(1);                                                                                     
    }                                                                                              
    if(pix->likelihood<1. || pix->frequency==0) continue;
    //if(!pix->core) continue;                  // select only the principal components pixels
 
    double time = int(double(pix->time)/pix->layers)/pix->rate; // time in seconds from the start
    double freq = pix->frequency*pix->rate/2.;                                    
 
    x.push_back(time);
    y.push_back(freq);
    w.push_back(pix->likelihood);
  }                                                                                         
  int size = x.size();
  if(size<5) return;                                                                       
 
  double xcm, ycm, qxx, qyy, qxy, ew;                                                           
  xcm = ycm  = qxx = qyy = qxy = ew = 0;                                                         
                                                                                             
  for(int i=0; i<size; ++i) {                                                                  
    xcm += x[i]*w[i];                                                                           
    ycm += y[i]*w[i];                                                                           
    ew  += w[i]; 
  }                                                                                         
  xcm /= ew;                                                                                
  ycm /= ew;                                                                                
                                                                                             
  for(int i=0; i<size; ++i) {  
    qxx += (x[i] - xcm)*(x[i] - xcm)*w[i];                                                      
    qyy += (y[i] - ycm)*(y[i] - ycm)*w[i];                                                      
    qxy += (x[i] - xcm)*(y[i] - ycm)*w[i];                                                      
  }                                                                                         
 
  double beta  = qxy/qxx;     // slope
  double alpha = ycm-beta*xcm;      // intercept
  double corr  = qxy/sqrt(qxx*qyy); // correlation
  double duration = sqrt(qxx/ew);   // duration
  double bandwidth = sqrt(qyy/ew);  // bandwidth
 
  //printf("alpha : %lf  , beta : %lf , corr : %lf,  dur : %lf , bw : %lf \n", 
  //       alpha, beta, corr, duration, bandwidth);                                                 
 
  Wveto[0] = beta;         // slope
  Wveto[1] = fabs(corr);      // correlation 
 
  return;
}
 
void 
PlotWaveform(TString ifo, wavearray<double>* wfREC, 
             CWB::config* cfg, bool fft, bool strain) {
 
  watplot PTS(const_cast<char*>("ptswrc"),200,20,800,500);
 
  //cout << "Print " << fname << endl;
  double tmin = wfREC->start();
  wfREC->start(wfREC->start()-tmin);
  if(fft) {
    PTS.plot(wfREC, const_cast<char*>("ALP"), 1, 0, 0, true, cfg->fLow, cfg->fHigh);
  } else {
    PTS.plot(wfREC, const_cast<char*>("ALP"), 1, 0, 0);
  }
  PTS.graph[0]->SetLineWidth(1);
  wfREC->start(wfREC->start()+tmin);
 
  char label[64]="";
  if(fft) sprintf(label,"%s","fft");
  else    sprintf(label,"%s","time");
  if(strain) sprintf(label,"%s_%s",label,"strain");
  else       sprintf(label,"%s_%s",label,"white"); 
 
  char fname[1024];
  //sprintf(fname, "%s_wf_%s_rec_gps_%d.root",ifo.Data(),label,int(tmin));
  sprintf(fname, "%s_wf_%s_rec_gps_%d.png",ifo.Data(),label,int(tmin));
  PTS.canvas->Print(fname); 
  cout << "write : " << fname << endl;
  //PTS.canvas->Write(REPLACE(fname,dirCED,gtype));
}
 
void 
ClearWaveforms(detector* ifo) {
 
  int n;
 
  n = ifo->IWFP.size();
  for (int i=0;i<n;i++) {
    wavearray<double>* wf = (wavearray<double>*)ifo->IWFP[i];
    delete wf;
  }
  ifo->IWFP.clear();
  ifo->IWFID.clear();
 
  n = ifo->RWFP.size();
  for (int i=0;i<n;i++) {
    wavearray<double>* wf = (wavearray<double>*)ifo->RWFP[i];
    delete wf;
  }
  ifo->RWFP.clear();
  ifo->RWFID.clear();
}
 
}
 
// -------------------------------------------------------------------------
// --> END CWB_USER PLUGIN CODE 2
// 
// CWB_Plugin_QLWveto.C
// -------------------------------------------------------------------------
 
 
// -------------------------------------------------------------------------
// --> MAIN CWB_USER PLUGIN CODE 
// 
// INPUT PLUGINS     :                                                       
// 
// 1 - CWB_Plugin_Gating.C
// 2 - CWB_Plugin_QLWveto.C
// 
// -------------------------------------------------------------------------
 
#define XIFO 4
#pragma GCC system_header
#include "cwb.hh"
 
 
void
CWB_Plugin(TFile* jfile, CWB::config* cfg, network* net, WSeries<double>* x, TString ifo, int type)  {
 
  CWB_UserPluginNamespace_1::CWB_Plugin(jfile, cfg, net, x, ifo, type); // CALL USER PLUGIN CODE 1
  CWB_UserPluginNamespace_2::CWB_Plugin(jfile, cfg, net, x, ifo, type); // CALL USER PLUGIN CODE 2
}