From 79fb06c328645b70169cf20a20619d44f62f6654 Mon Sep 17 00:00:00 2001
From: Andrea Carlo Marini <andrea.marini@cern.ch>
Date: Wed, 30 Nov 2016 13:57:30 +0100
Subject: [PATCH] default value

---
 interface/AnalysisBase.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/interface/AnalysisBase.hpp b/interface/AnalysisBase.hpp
index e128e2df33cc2..ea1e73c1691dd 100644
--- a/interface/AnalysisBase.hpp
+++ b/interface/AnalysisBase.hpp
@@ -57,7 +57,7 @@ class AnalysisBase : public Named
     inline void AddLabel(string s) {labels.push_back(s);}
     inline void AddLabels(vector<string> &v) { for(string &s : v ) labels.push_back(s);}
     // 
-    inline void SetMultiPrimaryDataset(bool x) { multipd_=x;}
+    inline void SetMultiPrimaryDataset(bool x=true) { multipd_=x;}
 
     inline TFile* GetOutputFile(){ return output_->GetFile() ;} // TMVA wants the file pointer
     // Tree Operations ----