From 7d43b4c4f7e8d0d401fb846e86556c396af82253 Mon Sep 17 00:00:00 2001
From: hristov <hristov@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Thu, 16 Aug 2007 07:51:14 +0000
Subject: [PATCH] Do not calculate ITS fake ratio for the tracks without ITS
 clusters

---
 ITS/AliITStrackerMI.cxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ITS/AliITStrackerMI.cxx b/ITS/AliITStrackerMI.cxx
index 2304a27bbdc..5da34eb3d44 100644
--- a/ITS/AliITStrackerMI.cxx
+++ b/ITS/AliITStrackerMI.cxx
@@ -3233,7 +3233,9 @@ void AliITStrackerMI::CookLabel(AliITStrackMI *track,Float_t wrong) const {
      track->SetChi2MIP(9,track->GetChi2MIP(9)+isWrong*(2<<l));
      nwrong+=isWrong;
    }
-   track->SetFakeRatio(double(nwrong)/double(track->GetNumberOfClusters()));
+   Int_t nclusters = track->GetNumberOfClusters();
+   if (nclusters > 0) //PH Some tracks don't have any cluster
+     track->SetFakeRatio(double(nwrong)/double(nclusters));
    if (tpcLabel>0){
      if (track->GetFakeRatio()>wrong) track->SetLabel(-tpcLabel);
      else
-- 
2.43.5