Index: trunk/MagicSoft/Mars/mhvstime/MHVsTime.cc
===================================================================
--- trunk/MagicSoft/Mars/mhvstime/MHVsTime.cc	(revision 6977)
+++ trunk/MagicSoft/Mars/mhvstime/MHVsTime.cc	(revision 7033)
@@ -121,4 +121,14 @@
 // --------------------------------------------------------------------------
 //
+// Call SetMinimum of fGraph
+//
+void MHVsTime::SetMinimum(Double_t min)
+{
+    if (fGraph)
+        fGraph->SetMinimum(0);
+}
+
+// --------------------------------------------------------------------------
+//
 // Return the data members used by the data chain to be used in
 // MTask::AddBranchToList
@@ -151,5 +161,4 @@
     fGraph->SetPoint(0, 0, 0); // Dummy point!
     fGraph->SetEditable();     // Used as flag: First point? yes/no
-
 
     TString title(fData ? GetRule() : (TString)"Graph");
Index: trunk/MagicSoft/Mars/mhvstime/MHVsTime.h
===================================================================
--- trunk/MagicSoft/Mars/mhvstime/MHVsTime.h	(revision 6977)
+++ trunk/MagicSoft/Mars/mhvstime/MHVsTime.h	(revision 7033)
@@ -45,4 +45,5 @@
 
     void SetScale(Double_t scale) { fScale = scale; }
+    void SetMinimum(Double_t min=-1111);
 
     Int_t GetNbins() const;