From 7dad7f170b2e4c5cc85f0d590e2dbe1f4d8ec655 Mon Sep 17 00:00:00 2001
From: mkrzewic <mkrzewic@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Thu, 20 Jun 2013 09:37:52 +0000
Subject: [PATCH] constrain fit to prevent crashes

---
 PWGPP/TPC/AliTreeDraw.cxx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/PWGPP/TPC/AliTreeDraw.cxx b/PWGPP/TPC/AliTreeDraw.cxx
index 3630be61265..2430cf73a98 100644
--- a/PWGPP/TPC/AliTreeDraw.cxx
+++ b/PWGPP/TPC/AliTreeDraw.cxx
@@ -481,6 +481,7 @@ TH1F* AliTreeDraw::CreateResHistoII(TH2F* hRes2, TH1F **phMean, Int_t integ,  Bo
  
   // create the fit function
   TF1 * fitFunc = new TF1("G","[0]*exp(-(x-[1])*(x-[1])/(2.*[2]*[2]))",-3,3);
+  fitFunc->SetParLimits(2,0.0001,100.);
   
   fitFunc->SetLineWidth(2);
   fitFunc->SetFillStyle(0);
-- 
2.43.0