updated track degrees of freedom and added histograms of chi2/ndof

Former-commit-id: 5731cf706b06ab1a587e423c7e0763982e64d103

branches/trunk/algorithms/BasicTracking.C

@@ -13,6 +13,8 @@ void BasicTracking::initialise(Parameters* par){
   
   // Set up histograms
   trackChi2 = new TH1F("trackChi2","trackChi2",150,0,150);
+  trackChi2ndof = new TH1F("trackChi2ndof","trackChi2ndof",100,0,50);
+  clustersPerTrack = new TH1F("clustersPerTrack","clustersPerTrack",10,0,10);
   tracksPerEvent = new TH1F("tracksPerEvent","tracksPerEvent",100,0,100);
   
   // Loop over all Timepix3
@@ -27,7 +29,7 @@ void BasicTracking::initialise(Parameters* par){
   }
   
   // Default values for cuts
-  timinigCut = 200./1000000000.;		// 10 ns
+  timinigCut = 200./1000000000.;		// 200 ns
   spatialCut = 0.2; 							// 200 um
   minHitsOnTrack = 6;
 
@@ -123,6 +125,8 @@ int BasicTracking::run(Clipboard* clipboard){
     
     // Fill histograms
     trackChi2->Fill(track->chi2());
+    clustersPerTrack->Fill(track->nClusters());
+    trackChi2ndof->Fill(track->chi2ndof());
     
     // Make residuals
     Timepix3Clusters trackClusters = track->clusters();

branches/trunk/algorithms/BasicTracking.h

@@ -29,6 +29,8 @@ public:
   
   // Histograms
   TH1F* trackChi2;
+  TH1F* clustersPerTrack;
+  TH1F* trackChi2ndof;
   TH1F* tracksPerEvent;
   map<string,TH1F*> residualsX;
   map<string,TH1F*> residualsY;

branches/trunk/objs/Timepix3Track.h

@@ -104,7 +104,7 @@ public:
   
   void calculateChi2(){
     int nClusters = m_clusters.size();
-    m_ndof = 2.*nClusters-4.;
+    m_ndof = nClusters-2.;
     m_chi2 = 0.; m_chi2ndof = 0.;
     // Loop over all clusters
     for(int iCluster=0;iCluster<nClusters;iCluster++){