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#ifndef Histos_H
#define Histos_H
/**
* This class provides an interface to root histograms
*
* \author Patrick Janot
* $Date: 16 Jan 2004 19:30 */
// for debugging
//#include "TROOT.h"
#include "TObject.h"
#include <string>
#include <map>
#include <iostream>
//#include <sstream>
class Histos {
public:
typedef std::map<std::string, TObject*>::const_iterator HistoItr;
static Histos* instance();
/// Destructor
virtual ~Histos();
/// Book an histogram (1D or 2D)
void book(const std::string& name, int nx, float xmin, float xmax, int ny = 0, float ymin = 0., float ymax = 0.);
// Same as before. Creates n2-n1 histos with name name+n1 ... name+n2
void bookByNumber(const std::string& name,
int n1,
int n2,
int nx,
float xmin,
float xmax,
int ny = 0,
float ymin = 0.,
float ymax = 0.);
/// Book a TProfile
/// option="S" -> spread
/// "" -> error on mean (from Root documentation)
void book(const std::string& name, int nx, float xmin, float xmax, const std::string& option);
/// Write one or all histogram(s) in a file
void put(const std::string& file, std::string name = "");
/// Divide two histograms and put the result in the first
void divide(const std::string& h1, const std::string& h2, const std::string& h3);
/// Fill an histogram
void fill(const std::string& name, float val1, float val2 = 1., float val3 = 1.);
// Fill a series of histos. The name is name+number
void fillByNumber(const std::string& name, int number, float val1, float val2 = 1., float val3 = 1.);
/// Add any object
void addObject(const std::string& name, TObject* obj);
///
void debug(std::string p = "") const { std::cout << " Histos myMap : " << &theHistos << " " << p << std::endl; }
private:
// The constructor is hidden as we do not want to construct
// more than one instance.
Histos();
// The instance
static Histos* myself;
// The histos booked
TObject* theHisto;
std::map<std::string, TObject*> theHistos;
std::map<std::string, unsigned> theTypes;
std::map<std::string, TObject*> theObjects;
};
#endif
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