From 1a73ca5b6e28fe631f39637ba92a7637878f714e Mon Sep 17 00:00:00 2001
From: Andrea Carlo Marini <andrea.marini@cern.ch>
Date: Fri, 7 Feb 2020 17:40:24 +0100
Subject: [PATCH] adding parsing of nuisance edit freeze

---
 CombineTools/src/CombineHarvester_Datacards.cc | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/CombineTools/src/CombineHarvester_Datacards.cc b/CombineTools/src/CombineHarvester_Datacards.cc
index 94d9b1f307f..32753389bf6 100644
--- a/CombineTools/src/CombineHarvester_Datacards.cc
+++ b/CombineTools/src/CombineHarvester_Datacards.cc
@@ -17,6 +17,7 @@
 #include "TH1.h"
 #include "RooRealVar.h"
 #include "RooCategory.h"
+#include <exception>
 #include "CombineHarvester/CombineTools/interface/Observation.h"
 #include "CombineHarvester/CombineTools/interface/Process.h"
 #include "CombineHarvester/CombineTools/interface/Systematic.h"
@@ -398,6 +399,14 @@ int CombineHarvester::ParseDatacard(std::string const& filename,
       continue;
     }
 
+    if (start_nuisance_scan and words[i].size() >3 and 
+            boost::iequals(words[i][0],"nuisance") and
+            boost::iequals(words[i][1],"edit") and
+            boost::iequals(words[i][2],"freeze") 
+            ){ // are parameter created? -> will crash if parameter does not exist.
+        GetParameter(words[i][3])->set_frozen(true);
+    }
+
     if (start_nuisance_scan && words[i].size() >= 4 &&
         boost::iequals(words[i][1], "group")) {
       if (!groups.count(words[i][0])) {