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#ifndef SAMPLEWEIGHT
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#define SAMPLEWEIGHT
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#include <map>
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#include <string>
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#include <THashTable.h>
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#include <TParameter.h>
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#include <TChain.h>
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#include <TString.h>
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#include <TRegexp.h>
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#include <TFile.h>
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#include <TTree.h>
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// get dataset name from the chain (only works on summer mc and 2011 data)
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std::string getDatasetName(TChain *chain);
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// get the number of events in the unskimmed ntuple
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double unskimmedEntries(TString skimname);
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//
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// table for reading xs data file (see MitAna/Utils/interface/SimpleTable.h)
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//
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class SimpleTable : public TObject
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{
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public:
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class MyParameter : public TParameter<double>
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{
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public:
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MyParameter() {}
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MyParameter(const char *n, Double_t v) :
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TParameter<double>(n,v), fHash(TString(n).Hash()) {}
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ULong_t Hash() const { return fHash; }
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void Print(Option_t */*option*/="") const;
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protected:
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ULong_t fHash; //stored hash value
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};
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public:
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SimpleTable(const char *input);
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~SimpleTable() {}
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Double_t Get(const char *name) const;
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Double_t Has(const char *name) const;
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void Print(Option_t *opt="") const;
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protected:
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THashTable fTable;
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};
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// get event weight for this mc sample
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double getWeight( SimpleTable &xstab, std::map<std::string,double> entrymap, TChain *chain );
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#endif
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