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# IHistoTool Class Reference

An abstract interface for "histogramming tool". More...

`#include <GaudiTools/IHistoTool.h>`

Inheritance diagram for IHistoTool:
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List of all members.

## Public Types
typedef Histos::HistoID | HistoID
| the actual type for histogram identifier (HBOOK style)
## Public Member Functions
| DeclareInterfaceID (IHistoTool, 2, 0)
| InterfaceID.
virtual AIDA::IHistogram1D * | plot1D (const double value, const std::string &title, const double low, const double high, const unsigned long bins=100, const double weight=1.0) const =0
| fill the 1D histogram (book on demand)
AIDA::IHistogram1D * | plot (const double value, const std::string &title, const double low, const double high, const unsigned long bins=100, const double weight=1.0) const
| fill the 1D histogram (book on demand)
virtual AIDA::IHistogram1D * | plot1D (const double value, const HistoID &ID, const std::string &title, const double low, const double high, const unsigned long bins=100, const double weight=1.0) const =0
| fill the 1D histogram with forced ID assignement (book on demand)
AIDA::IHistogram1D * | plot (const double value, const HistoID &ID, const std::string &title, const double low, const double high, const unsigned long bins=100, const double weight=1.0) const
| fill the 1D histogram with forced ID assignment (book on demand)
virtual AIDA::IHistogram2D * | plot2D (const double valueX, const double valueY, const std::string &title, const double lowX, const double highX, const double lowY, const double highY, const unsigned long binsX=50, const unsigned long binsY=50, const double weight=1.0) const =0
| fill the 2D histogram (book on demand)
virtual AIDA::IHistogram2D * | plot2D (const double valueX, const double valueY, const HistoID &ID, const std::string &title, const double lowX, const double highX, const double lowY, const double highY, const unsigned long binsX=50, const unsigned long binsY=50, const double weight=1.0) const =0
| fill the 2D histogram with forced ID assignment (book on demand)
virtual AIDA::IHistogram3D * | plot3D (const double valueX, const double valueY, const double valueZ, const std::string &title, const double lowX, const double highX, const double lowY, const double highY, const double lowZ, const double highZ, const unsigned long binsX=10, const unsigned long binsY=10, const unsigned long binsZ=10, const double weight=1.0) const =0
| fill the 3D histogram (book on demand)
virtual AIDA::IHistogram3D * | plot3D (const double valueX, const double valueY, const double valueZ, const HistoID &ID, const std::string &title, const double lowX, const double highX, const double lowY, const double highY, const double lowZ, const double highZ, const unsigned long binsX=10, const unsigned long binsY=10, const unsigned long binsZ=10, const double weight=1.0) const =0
| fill the 3D histogram with forced ID assignment (book on demand)
virtual AIDA::IHistogram1D * | book1D (const std::string &title, const double low=0, const double high=100, const unsigned long bins=100) const =0
| book the 1D histogram
AIDA::IHistogram1D * | book (const std::string &title, const double low=0, const double high=100, const unsigned long bins=100) const
| book the 1D histogram
virtual AIDA::IHistogram2D * | book2D (const std::string &title, const double lowX=0, const double highX=100, const unsigned long binsX=50, const double lowY=0, const double highY=100, const unsigned long binsY=50) const =0
| book the 2D histogram
virtual AIDA::IHistogram3D * | book3D (const std::string &title, const double lowX=0, const double highX=100, const unsigned long binsX=10, const double lowY=0, const double highY=100, const unsigned long binsY=10, const double lowZ=0, const double highZ=100, const unsigned long binsZ=10) const =0
| book the 3D histogram
virtual AIDA::IHistogram1D * | book1D (const HistoID &ID, const std::string &title="", const double low=0, const double high=100, const unsigned long bins=100) const =0
| book the 1D histogram with forced ID
AIDA::IHistogram1D * | book (const HistoID &ID, const std::string &title="", const double low=0, const double high=100, const unsigned long bins=100) const
| book the 1D histogram with forced ID
virtual AIDA::IHistogram2D * | book2D (const HistoID &ID, const std::string &title, const double lowX=0, const double highX=100, const unsigned long binsX=100, const double lowY=0, const double highY=100, const unsigned long binsY=100) const =0
| book the 2D histogram with forced ID
virtual AIDA::IHistogram3D * | book3D (const HistoID &ID, const std::string &title, const double lowX=0, const double highX=100, const unsigned long binsX=10, const double lowY=0, const double highY=100, const unsigned long binsY=10, const double lowZ=0, const double highZ=100, const unsigned long binsZ=10) const =0
| book the 3D histogram with forced ID
virtual AIDA::IHistogram1D * | fill (AIDA::IHistogram1D *histo, const double value, const double weight, const std::string &title="") const =0
| fill the 1D histo with the value and weight
virtual AIDA::IHistogram2D * | fill (AIDA::IHistogram2D *histo, const double valueX, const double valueY, const double weight, const std::string &title="") const =0
| fill the 2D histo with the value and weight
virtual AIDA::IHistogram3D * | fill (AIDA::IHistogram3D *histo, const double valueX, const double valueY, const double valueZ, const double weight, const std::string &title="") const =0
| fill the 3D histo with the value and weight
virtual AIDA::IHistogram1D * | histo1D (const std::string &title) const =0
| access the EXISTING 1D histogram by title return the pointer to existing 1D histogram or NULL
AIDA::IHistogram1D * | histo (const std::string &title) const
| access the EXISTING 1D histogram by title
virtual AIDA::IHistogram2D * | histo2D (const std::string &title) const =0
| access the EXISTING 2D histogram by title return the pointer to existing 2D histogram or NULL
virtual AIDA::IHistogram3D * | histo3D (const std::string &title) const =0
| access the EXISTING 3D histogram by title return the pointer to existing 3D histogram or NULL
virtual AIDA::IHistogram1D * | histo1D (const HistoID &ID) const =0
| access the EXISTING 1D histogram by ID return the pointer to existing 1D histogram or NULL
AIDA::IHistogram1D * | histo (const HistoID &ID) const
| access the EXISTING 1D histogram by ID
virtual AIDA::IHistogram2D * | histo2D (const HistoID &ID) const =0
| access the EXISTING 2D histogram by ID return the pointer to existing 2D histogram or NULL
virtual AIDA::IHistogram3D * | histo3D (const HistoID &ID) const =0
| access the EXISTING 3D histogram by ID return the pointer to existing 3D histogram or NULL
virtual bool | histoExists (const std::string &title) const =0
| check the existence AND validity of the histogram with given title
virtual bool | histoExists (const HistoID &ID) const =0
| check the existence AND validity of the histogram with given title
template<class FUNCTION , class OBJECT >
AIDA::IHistogram1D * | plot (const FUNCTION &func, OBJECT first, OBJECT last, const std::string &title, const double low, const double high, const unsigned long bins=100) const
| fill the 1D histogram with information from [first,last) sequence
template<class FUNCTION , class OBJECT >
AIDA::IHistogram1D * | plot (const FUNCTION &func, OBJECT first, OBJECT last, const HistoID &ID, const std::string &title, const double low, const double high, const unsigned long bins=100) const
| fill the 1D histogram with forced ID and information from [first,last) sequence
template<class FUNCTION , class OBJECT , class WEIGHT >
AIDA::IHistogram1D * | plot (const FUNCTION &func, OBJECT first, OBJECT last, const std::string &title, const double low, const double high, const unsigned long bins, const WEIGHT &weight) const
| book and fill the 1D histogram with information from [first,last) sequence with given weight
template<class FUNCTION , class OBJECT , class WEIGHT >
AIDA::IHistogram1D * | plot (const FUNCTION &func, OBJECT first, OBJECT last, const HistoID &ID, const std::string &title, const double low, const double high, const unsigned long bins, const WEIGHT &weight) const
| book and fill the 1D histogram with forced ID and information from [first,last) sequence with given weight
## Protected Member Functions
virtual | ~IHistoTool ()
| destructor

## Detailed Description

An abstract interface for "histogramming tool".

Author:
  Vanya BELYAEV Ivan.Belyaev@itep.ru

Date:
  2004-06-28

Definition at line 33 of file IHistoTool.h.

## Member Typedef Documentation

typedef Histos::HistoID IHistoTool::HistoID

the actual type for histogram identifier (HBOOK style)

Reimplemented in HistoTool.

Definition at line 40 of file IHistoTool.h.

## Constructor & Destructor Documentation

IHistoTool::~IHistoTool | ( | ) | `[protected, virtual]`

destructor

Definition at line 24 of file IHistoTool.cpp.

    {}

## Member Function Documentation

AIDA::IHistogram1D* IHistoTool::book | ( | const std::string & | title,
|  | const double | low = `0`,
|  | const double | high = `100`,
|  | const unsigned long | bins = `100`
| ) |  | const`[inline]`

book the 1D histogram

Wrapper method for the equivalent book1D method. Retained for backwards compatibility, please use book1D instead.

See also:
  IHistogram1D

Parameters:

  title | histogram title (must be unique within the algorithm)
  low | low limit for histogram
  high | high limit for histogram
  bins | number of bins

Returns:
  pointer to AIDA 1D histogram

Definition at line 447 of file IHistoTool.h.

      {
        return book1D( title, low, high, bins );
      }

AIDA::IHistogram1D* IHistoTool::book | ( | const HistoID & | ID,
|  | const std::string & | title = `""`,
|  | const double | low = `0`,
|  | const double | high = `100`,
|  | const unsigned long | bins = `100`
| ) |  | const`[inline]`

book the 1D histogram with forced ID

Wrapper method for the equivalent book1D method. Retained for backwards compatibility, please use book1D instead.

See also:
  IHistogram1D

Parameters:

  ID | unique histogram ID
  title | histogram title (must be unique within the algorithm)
  low | low limit for histogram
  high | high limit for histogram
  bins | number of bins

Returns:
  pointer to AIDA histogram

Definition at line 538 of file IHistoTool.h.

      {
        return book1D( ID, title, low, high, bins );
      }

virtual AIDA::IHistogram1D* IHistoTool::book1D | ( | const std::string & | title,
|  | const double | low = `0`,
|  | const double | high = `100`,
|  | const unsigned long | bins = `100`
| ) |  | const`[pure virtual]`

book the 1D histogram

The histogram will be assigned a unique identifier

See also:
  IHistogram1D

Parameters:

  title | histogram title (must be unique within the algorithm)
  low | low limit for histogram
  high | high limit for histogram
  bins | number of bins

Returns:
  pointer to AIDA 1D histogram

Implemented in HistoTool.

virtual AIDA::IHistogram1D* IHistoTool::book1D | ( | const HistoID & | ID,
|  | const std::string & | title = `""`,
|  | const double | low = `0`,
|  | const double | high = `100`,
|  | const unsigned long | bins = `100`
| ) |  | const`[pure virtual]`

book the 1D histogram with forced ID

See also:
  IHistogram1D

Parameters:

  ID | unique histogram ID
  title | histogram title (must be unique within the algorithm)
  low | low limit for histogram
  high | high limit for histogram
  bins | number of bins

Returns:
  pointer to AIDA histogram

Implemented in HistoTool.

virtual AIDA::IHistogram2D* IHistoTool::book2D | ( | const HistoID & | ID,
|  | const std::string & | title,
|  | const double | lowX = `0`,
|  | const double | highX = `100`,
|  | const unsigned long | binsX = `100`,
|  | const double | lowY = `0`,
|  | const double | highY = `100`,
|  | const unsigned long | binsY = `100`
| ) |  | const`[pure virtual]`

book the 2D histogram with forced ID

See also:
  IHistogram2D

Parameters:

  ID | unique histogram ID
  title | histogram title (must be unique within the algorithm)
  low | low limit for histogram
  high | high limit for histogram
  bins | number of bins

Returns:
  pointer to AIDA histogram

Implemented in HistoTool.

virtual AIDA::IHistogram2D* IHistoTool::book2D | ( | const std::string & | title,
|  | const double | lowX = `0`,
|  | const double | highX = `100`,
|  | const unsigned long | binsX = `50`,
|  | const double | lowY = `0`,
|  | const double | highY = `100`,
|  | const unsigned long | binsY = `50`
| ) |  | const`[pure virtual]`

book the 2D histogram

The histogram will be assigned a unique identifier

See also:
  IHistogram2D

Parameters:

  title | histogram title (must be unique within the algorithm)
  lowX | low x limit for histogram
  highX | high x limit for histogram
  binsX | number of bins in x
  lowY | low y limit for histogram
  highY | high y limit for histogram
  binsY | number of bins in y

Returns:
  pointer to AIDA 2D histogram

Implemented in HistoTool.

virtual AIDA::IHistogram3D* IHistoTool::book3D | ( | const HistoID & | ID,
|  | const std::string & | title,
|  | const double | lowX = `0`,
|  | const double | highX = `100`,
|  | const unsigned long | binsX = `10`,
|  | const double | lowY = `0`,
|  | const double | highY = `100`,
|  | const unsigned long | binsY = `10`,
|  | const double | lowZ = `0`,
|  | const double | highZ = `100`,
|  | const unsigned long | binsZ = `10`
| ) |  | const`[pure virtual]`

book the 3D histogram with forced ID

See also:
  IHistogram3D

Parameters:

  ID | unique histogram ID
  title | histogram title (must be unique within the algorithm)
  lowX | low x limit for histogram
  highX | high x limit for histogram
  binsX | number of bins in x
  lowY | low y limit for histogram
  highY | high y limit for histogram
  binsY | number of bins in y
  lowZ | low y limit for histogram
  highZ | high y limit for histogram
  binsZ | number of bins in y

Returns:
  pointer to AIDA 3D histogram

Implemented in HistoTool.

virtual AIDA::IHistogram3D* IHistoTool::book3D | ( | const std::string & | title,
|  | const double | lowX = `0`,
|  | const double | highX = `100`,
|  | const unsigned long | binsX = `10`,
|  | const double | lowY = `0`,
|  | const double | highY = `100`,
|  | const unsigned long | binsY = `10`,
|  | const double | lowZ = `0`,
|  | const double | highZ = `100`,
|  | const unsigned long | binsZ = `10`
| ) |  | const`[pure virtual]`

book the 3D histogram

The histogram will be assigned a unique identifier

See also:
  IHistogram3D

Parameters:

  title | histogram title (must be unique within the algorithm)
  lowX | low x limit for histogram
  highX | high x limit for histogram
  binsX | number of bins in x
  lowY | low y limit for histogram
  highY | high y limit for histogram
  binsY | number of bins in y
  lowZ | low y limit for histogram
  highZ | high y limit for histogram
  binsZ | number of bins in y

Returns:
  pointer to AIDA 3D histogram

Implemented in HistoTool.

IHistoTool::DeclareInterfaceID | ( | IHistoTool | ,
|  | 2 | ,
|  | 0 |
| ) |  |

InterfaceID.

virtual AIDA::IHistogram1D* IHistoTool::fill | ( | AIDA::IHistogram1D * | histo,
|  | const double | value,
|  | const double | weight,
|  | const std::string & | title = `""`
| ) |  | const`[pure virtual]`

fill the 1D histo with the value and weight

Parameters:

  histo | 1D histogram to be filled
  value | value to be put into the histogram
  weight | weight to be used
  title | histogram title (to be used for error report)

Returns:
  pointer to AIDA 1D histogram

Implemented in HistoTool.

virtual AIDA::IHistogram2D* IHistoTool::fill | ( | AIDA::IHistogram2D * | histo,
|  | const double | valueX,
|  | const double | valueY,
|  | const double | weight,
|  | const std::string & | title = `""`
| ) |  | const`[pure virtual]`

fill the 2D histo with the value and weight

Parameters:

  histo | 2D histogram to be filled
  valueX | x value to be put into the histogram
  valueY | y value to be put into the histogram
  weight | weight to be used
  title | histogram title (to be used for error report)

Returns:
  pointer to AIDA 2D histogram

Implemented in HistoTool.

virtual AIDA::IHistogram3D* IHistoTool::fill | ( | AIDA::IHistogram3D * | histo,
|  | const double | valueX,
|  | const double | valueY,
|  | const double | valueZ,
|  | const double | weight,
|  | const std::string & | title = `""`
| ) |  | const`[pure virtual]`

fill the 3D histo with the value and weight

Parameters:

  histo | 3D histogram to be filled
  valueX | x value to be put into the histogram
  valueY | y value to be put into the histogram
  valueZ | z value to be put into the histogram
  weight | weight to be used
  title | histogram title (to be used for error report)

Returns:
  pointer to AIDA 3D histogram

Implemented in HistoTool.

AIDA::IHistogram1D* IHistoTool::histo | ( | const std::string & | title ) | const`[inline]`

access the EXISTING 1D histogram by title

Wrapper method for the equivalent histo1D method. Retained for backwards compatibility, please use histo1D instead.

return the pointer to existing 1D histogram or NULL

Definition at line 653 of file IHistoTool.h.

      {
        return histo1D( title );
      };

AIDA::IHistogram1D* IHistoTool::histo | ( | const HistoID & | ID ) | const`[inline]`

access the EXISTING 1D histogram by ID

Wrapper method for the equivalent histo1D method. Retained for backwards compatibility, please use histo1D instead.

return the pointer to existing 1D histogram or NULL

Definition at line 681 of file IHistoTool.h.

      {
        return histo1D( ID );
      };

virtual AIDA::IHistogram1D* IHistoTool::histo1D | ( | const std::string & | title ) | const`[pure virtual]`

access the EXISTING 1D histogram by title return the pointer to existing 1D histogram or NULL

Implemented in HistoTool.

virtual AIDA::IHistogram1D* IHistoTool::histo1D | ( | const HistoID & | ID ) | const`[pure virtual]`

access the EXISTING 1D histogram by ID return the pointer to existing 1D histogram or NULL

Implemented in HistoTool.

virtual AIDA::IHistogram2D* IHistoTool::histo2D | ( | const std::string & | title ) | const`[pure virtual]`

access the EXISTING 2D histogram by title return the pointer to existing 2D histogram or NULL

Implemented in HistoTool.

virtual AIDA::IHistogram2D* IHistoTool::histo2D | ( | const HistoID & | ID ) | const`[pure virtual]`

access the EXISTING 2D histogram by ID return the pointer to existing 2D histogram or NULL

Implemented in HistoTool.

virtual AIDA::IHistogram3D* IHistoTool::histo3D | ( | const std::string & | title ) | const`[pure virtual]`

access the EXISTING 3D histogram by title return the pointer to existing 3D histogram or NULL

Implemented in HistoTool.

virtual AIDA::IHistogram3D* IHistoTool::histo3D | ( | const HistoID & | ID ) | const`[pure virtual]`

access the EXISTING 3D histogram by ID return the pointer to existing 3D histogram or NULL

Implemented in HistoTool.

virtual bool IHistoTool::histoExists | ( | const std::string & | title ) | const`[pure virtual]`

check the existence AND validity of the histogram with given title

Implemented in HistoTool.

virtual bool IHistoTool::histoExists | ( | const HistoID & | ID ) | const`[pure virtual]`

check the existence AND validity of the histogram with given title

Implemented in HistoTool.

AIDA::IHistogram1D* IHistoTool::plot | ( | const double | value,
|  | const std::string & | title,
|  | const double | low,
|  | const double | high,
|  | const unsigned long | bins = `100`,
|  | const double | weight = `1.0`
| ) |  | const`[inline]`

fill the 1D histogram (book on demand)

Wrapper method for the equivalent plot1D method. Retained for backwards compatibility, please use plot1D instead.

Parameters:

  value | value to be filled
  title | histogram title (must be unique within the algorithm)
  low | low limit for histogram
  high | high limit for histogram
  bins | number of bins
  weight | weight

Returns:
  pointer to AIDA 1D histogram

Definition at line 96 of file IHistoTool.h.

      {
        return plot1D ( value, title, low, high, bins, weight );
      }

template<class FUNCTION , class OBJECT , class WEIGHT >

AIDA::IHistogram1D* IHistoTool::plot | ( | const FUNCTION & | func,
|  | OBJECT | first,
|  | OBJECT | last,
|  | const std::string & | title,
|  | const double | low,
|  | const double | high,
|  | const unsigned long | bins,
|  | const WEIGHT & | weight
| ) |  | const`[inline]`

book and fill the 1D histogram with information from [first,last) sequence with given weight

      std::vector<double> v = ... ;

      plot( sin                 ,   // function
            v.begin() , v.end() ,   // sequence
            " bla-bla "         ,   // title
            -1. , 1.0           ,   // low and high limits
            100                 ,   // number of bins
            tanh                );  // weight function

The histogram will get a unique integer identifier automatically assigned

Sequence, objects and function can be non-trivial:

      Particles* p = ... ;

      plot( PT                  ,  // function
            p->begin()  , p->end() , // sequence
            " bla-bla "         ,   // title
            -1. , 1.0           ,   // low and high limits
            100                 ,   // number of bins
            MASS                ) ; // weight function

where `PT` and `MASS` can be any function or function object for which the expressions `PT(p)` and `MASS` with `p` of type `Particle*` have some sense and can be evaluated to the values, which is convertible to `double`

Note : These plot methods using iterator ranges are more efficient than the simplier "value" only methods, since the associated histogram only requires locating from internal storage once per loop, as opposed to once per fill for the simplier functions. It is recommended to use these whenever possible.

See also:
  AIDA::IHistogram1D

Parameters:

  first | begin of the sequence
  last | end of the sequence
  title | histogram title
  func | function to be plotted
  low | low limit for histogram
  high | high limit for histogram
  bins | number of bins for histogram
  weight | weight function

Definition at line 895 of file IHistoTool.h.

      {
        // retrieve or book the histogram
        AIDA::IHistogram1D* h = histo1D ( title ) ;
        if ( 0 == h     ) { h = book1D  ( title , low , high , bins ); }
        while( first != last && 0 != h )
        { h = fill ( h                 ,
                     func   ( *first ) ,
                     weight ( *first ) , title  ) ; ++first ; }
        return h ;
      }

template<class FUNCTION , class OBJECT >

AIDA::IHistogram1D* IHistoTool::plot | ( | const FUNCTION & | func,
|  | OBJECT | first,
|  | OBJECT | last,
|  | const HistoID & | ID,
|  | const std::string & | title,
|  | const double | low,
|  | const double | high,
|  | const unsigned long | bins = `100`
| ) |  | const`[inline]`

fill the 1D histogram with forced ID and information from [first,last) sequence

      std::vector<double> v = ... ;

      plot( sin                 ,   // function
            v.begin() , v.end() ,   // sequence
            100 , " bla-bla "   ,   // ID and title
            -1. , 1.0           ,   // low and high limits
            100                 );  // number of bins

Sequence, objects and function can be non-trivial:

      Particles* p = ... ;

      plot( PT                  ,   // function
            p->begin()   , p->end() , // sequence
            100 , " bla-bla "   ,   // ID and title
            -1. , 1.0           ,   // low and high limits
            100                 ) ; // number of bins

Note : These plot methods using iterator ranges are more efficient than the simplier "value" only methods, since the associated histogram only requires locating from internal storage once per loop, as opposed to once per fill for the simplier functions. It is recommended to use these whenever possible.

Note : This method is more efficient that the similar method without forced ID, since the histogram lookup is faster using a numerical ID.

See also:
  AIDA::IHistogram1D

Parameters:

  func | function to be plotted
  first | begin of the sequence
  last | end of the sequence
  ID | histogram identifier
  title | histogram title
  low | low limit for histogram
  high | high limit for histogram
  bins | number of bins for histogram

Definition at line 822 of file IHistoTool.h.

      {
        // retrieve or book the histogram
        AIDA::IHistogram1D* h = histo1D ( ID ) ;
        if ( 0 == h )     { h = book1D  ( ID , title , low , high , bins ); }
        while ( first != last && 0 != h )
        { h = fill( h , func( *first ) , 1.0 , title  ) ; ++first ; }
        return h ;
      }

template<class FUNCTION , class OBJECT >

AIDA::IHistogram1D* IHistoTool::plot | ( | const FUNCTION & | func,
|  | OBJECT | first,
|  | OBJECT | last,
|  | const std::string & | title,
|  | const double | low,
|  | const double | high,
|  | const unsigned long | bins = `100`
| ) |  | const`[inline]`

fill the 1D histogram with information from [first,last) sequence

      std::vector<double> v = ... ;

      plot( sin                 , // function
            v.begin() , v.end() , // sequence
            " bla-bla "         , // title
            -1. , 1.0           , // low and high limits
            100                 ) // number of bins

The histogram will get a unique integer identifier automatically assigned

Sequence, objects and function can be non-trivial:

      Particles* p = ... ;

      plot( PT                  , // function
            p->begin()  , p->end() , // sequence
            " bla-bla "         , // title
            -1. , 1.0           , // low and high limits
            100                 ) ; // number of bins

where `PT` can be any function or function object for which the expression `PT(p)` , with `p` of type `Particle*` have some sense and can be evaluated to the values, which is convertible to `double`

Note : These plot methods using iterator ranges are more efficient than the simplier "value" only methods, since the associated histogram only requires locating from internal storage once per loop, as opposed to once per fill for the simplier functions. It is recommended to use these whenever possible.

See also:
  AIDA::IHistogram1D

Parameters:

  func | function to be plotted
  first | begin of the sequence
  last | end of the sequence
  title | histogram title
  low | low limit for histogram
  high | high limit for histogram
  bins | number of bins for histogram

Definition at line 755 of file IHistoTool.h.

      {
        // retrieve or book the histogram
        AIDA::IHistogram1D* h = histo1D ( title ) ;
        if ( 0 == h )     { h = book1D  ( title , low , high , bins ); }
        while ( first != last && 0 != h  )
        { h = fill ( h , func( *first ) , 1.0 , title  ) ; ++first ; }
        return h ;
      }

AIDA::IHistogram1D* IHistoTool::plot | ( | const double | value,
|  | const HistoID & | ID,
|  | const std::string & | title,
|  | const double | low,
|  | const double | high,
|  | const unsigned long | bins = `100`,
|  | const double | weight = `1.0`
| ) |  | const`[inline]`

fill the 1D histogram with forced ID assignment (book on demand)

Wrapper method for the equivalent plot1D method. Retained for backwards compatibility, please use plot1D instead.

Parameters:

  value | value to be filled
  ID | histogram identifier
  title | histogram title (must be unique within the algorithm)
  low | low limit for histogram
  high | high limit for histogram
  bins | number of bins
  weight | weight

Returns:
  pointer to AIDA histogram

Definition at line 170 of file IHistoTool.h.

      {
        return plot1D ( value, ID, title, low, high, bins, weight );
      };

template<class FUNCTION , class OBJECT , class WEIGHT >

AIDA::IHistogram1D* IHistoTool::plot | ( | const FUNCTION & | func,
|  | OBJECT | first,
|  | OBJECT | last,
|  | const HistoID & | ID,
|  | const std::string & | title,
|  | const double | low,
|  | const double | high,
|  | const unsigned long | bins,
|  | const WEIGHT & | weight
| ) |  | const`[inline]`

book and fill the 1D histogram with forced ID and information from [first,last) sequence with given weight

      std::vector<double> v = ... ;

      plot( sin                 ,   // function
            v.begin() , v.end() ,   // sequence
            100 , " bla-bla "   ,   // ID and title
            -1. , 1.0           ,   // low and high limits
            100                 ,   // number of bins
            sinh                );  // weight function

Attention:
  no checks for NaN and Finite is performed!

Sequence, objects and function can be non-trivial:

      Particles* p = ... ;

      plot( PT                  ,   // function
            p->begin()   , p->end() , // sequence
            100 , " bla-bla "   ,   // ID and title
            -1. , 1.0           ,   // low and high limits
            100                 ,   // number of bins
            MASS                ) ; // weight function

where `PT` and `MASS` can be any function or function object for which the expressions `PT(p)` and `MASS` with `p` of type `Particle*` have some sense and can be evaluated to the values, which is convertible to `double`

Note : These plot methods using iterator ranges are more efficient than the simplier "value" only methods, since the associated histogram only requires locating from internal storage once per loop, as opposed to once per fill for the simplier functions. It is recommended to use these whenever possible.

Note : This method is more efficient that the similar method without forced ID, since the histogram lookup is faster using a numerical ID.

See also:
  AIDA::IHistogram1D

Parameters:

  first | begin of the sequence
  last | end of the sequence
  ID | histogram identifier
  title | histogram title
  func | function to be plotted
  low | low limit for histogram
  high | high limit for histogram
  bins | number of bins for histogram
  weight | weight function

Definition at line 975 of file IHistoTool.h.

      {
        // retrieve or book the histogram
        AIDA::IHistogram1D* h = histo1D ( ID ) ;
        if ( 0 == h     ) { h = book1D  ( ID , title , low , high , bins ); }
        while( first != last && 0 != h )
        { h  = fill ( h                 ,
                      func   ( *first ) ,
                      weight ( *first ) , title  ) ; ++first ; }
        return h ;
      }

virtual AIDA::IHistogram1D* IHistoTool::plot1D | ( | const double | value,
|  | const std::string & | title,
|  | const double | low,
|  | const double | high,
|  | const unsigned long | bins = `100`,
|  | const double | weight = `1.0`
| ) |  | const`[pure virtual]`

fill the 1D histogram (book on demand)

         const double mass = ... ;
         plot1D( mass , "Invariant Mass" , 2.5 , 3.5 , 100 )

- This example illustrates the filling of the histogram titled `"InvariantMass"` with value `mass` .
- If the histogram with given title does not exist yet it will be automatically booked with parameters `low` equal to 2.5, parameters `high` equal to 3.5 and `bins` equal to 100.

The histogram will get a unique integer identifier automatically assigned.

See also:
  AIDA::IHistogram1D

Parameters:

  value | value to be filled
  title | histogram title (must be unique within the algorithm)
  low | low limit for histogram
  high | high limit for histogram
  bins | number of bins
  weight | weight

Returns:
  pointer to AIDA 1D histogram

Implemented in HistoTool.

virtual AIDA::IHistogram1D* IHistoTool::plot1D | ( | const double | value,
|  | const HistoID & | ID,
|  | const std::string & | title,
|  | const double | low,
|  | const double | high,
|  | const unsigned long | bins = `100`,
|  | const double | weight = `1.0`
| ) |  | const`[pure virtual]`

fill the 1D histogram with forced ID assignement (book on demand)

         const double mass = ... ;
         plot1D( mass , 15 , "Invariant Mass" , 2.5 , 3.5 , 100 )

- This example illustrates the filling of the 1D histogram ID=15 titled `"Invariant Mass"` with value `mass` .
- If the histogram with given ID does not exist yet it will be automatically booked with parameters `low` equal to 2.5, parameters `high` equal to 3.5 and `bins` equal to 100.

Attention:
  If the histogram with given ID is already booked through automatic assignement of histogram ID, the error will not be detected. Therefore it is recommended to use non-trivial histogram ID offset (property "HistoOffSet") if one need to combine these techniques together It is still desirable to use the unique histogram title to avoid a bad interference.

Note : This method is more efficient that the similar method without forced ID, since the histogram lookup is faster using a numerical ID.

See also:
  AIDA::IHistogram1D

Parameters:

  value | value to be filled
  ID | histogram identifier
  title | histogram title (must be unique within the algorithm)
  low | low limit for histogram
  high | high limit for histogram
  bins | number of bins
  weight | weight

Returns:
  pointer to AIDA histogram

Implemented in HistoTool.

virtual AIDA::IHistogram2D* IHistoTool::plot2D | ( | const double | valueX,
|  | const double | valueY,
|  | const HistoID & | ID,
|  | const std::string & | title,
|  | const double | lowX,
|  | const double | highX,
|  | const double | lowY,
|  | const double | highY,
|  | const unsigned long | binsX = `50`,
|  | const unsigned long | binsY = `50`,
|  | const double | weight = `1.0`
| ) |  | const`[pure virtual]`

fill the 2D histogram with forced ID assignment (book on demand)

         const double mass1 = ... ;
         const double mass2 = ... ;
         plot2D( mass1, mass2, 15, "Invariant Mass2 versus Mass1" ,2.5 ,3.5, 4.5, 5.5, 100, 200 );

- This example illustrates the filling of the 2D histogram ID=15 titled `"Invariant Mass2 versus Mass1"` with values `mass1` and `mass2` .
- If the histogram with given title does not exist yet it will be automatically booked with parameters `lowX` equal to 2.5, `highX` equal to 3.5, `lowY` equal to 4.5, `highY` equal to 5.5, `binsX` equal to 100 and `binsY` equal to 200.

Attention:
  If the histogram with given ID is already booked through automatic assignment of histogram ID, the error will not be detected. Therefore it is recommended to use non-trivial histogram ID offset (property "HistoOffSet") if one need to combine these techniques together It is still desirable to use the unique histogram title to avoid a bad interference

Note : This method is more efficient that the similar method without forced ID, since the histogram lookup is faster using a numerical ID.

See also:
  AIDA::IHistogram2D

Parameters:

  valueX | x value to be filled
  valueY | y value to be filled
  ID | Histogram ID to use
  title | histogram title (must be unique within the algorithm)
  lowX | low x limit for histogram
  highX | high x limit for histogram
  lowY | low y limit for histogram
  highY | high y limit for histogram
  binsX | number of bins in x
  binsY | number of bins in y
  weight | weight

Returns:
  pointer to AIDA 2D histogram

Implemented in HistoTool.

virtual AIDA::IHistogram2D* IHistoTool::plot2D | ( | const double | valueX,
|  | const double | valueY,
|  | const std::string & | title,
|  | const double | lowX,
|  | const double | highX,
|  | const double | lowY,
|  | const double | highY,
|  | const unsigned long | binsX = `50`,
|  | const unsigned long | binsY = `50`,
|  | const double | weight = `1.0`
| ) |  | const`[pure virtual]`

fill the 2D histogram (book on demand)

         const double mass1 = ... ;
         const double mass2 = ... ;
         plot2D( mass1, mass2, "Invariant Mass2 versus Mass1" ,2.5 ,3.5, 4.5, 5.5, 100, 200 );

- This example illustrates the filling of the 2D histogram titled `"Invariant Mass2 versus Mass1"` with values `mass1` and `mass2` .
- If the histogram with given title does not exist yet it will be automatically booked with parameters `lowX` equal to 2.5, `highX` equal to 3.5, `lowY` equal to 4.5, `highY` equal to 5.5, `binsX` equal to 100 and `binsY` equal to 200.

The histogram will get a unique integer identifier automatically assigned

See also:
  AIDA::IHistogram2D

Parameters:

  valueX | x value to be filled
  valueY | y value to be filled
  title | histogram title (must be unique within the algorithm)
  lowX | low x limit for histogram
  highX | high x limit for histogram
  lowY | low y limit for histogram
  highY | high y limit for histogram
  binsX | number of bins in x
  binsY | number of bins in y
  weight | weight

Returns:
  pointer to AIDA 2D histogram

Implemented in HistoTool.

virtual AIDA::IHistogram3D* IHistoTool::plot3D | ( | const double | valueX,
|  | const double | valueY,
|  | const double | valueZ,
|  | const std::string & | title,
|  | const double | lowX,
|  | const double | highX,
|  | const double | lowY,
|  | const double | highY,
|  | const double | lowZ,
|  | const double | highZ,
|  | const unsigned long | binsX = `10`,
|  | const unsigned long | binsY = `10`,
|  | const unsigned long | binsZ = `10`,
|  | const double | weight = `1.0`
| ) |  | const`[pure virtual]`

fill the 3D histogram (book on demand)

         const double mass1 = ... ;
         const double mass2 = ... ;
         const double mass3 = ... ;
         plot3D( X, Y, Z, "Space Points" ,2.5 ,3.5, 4.5, 5.5, 6.5, 7.5, 10, 20, 30 );

- This example illustrates the filling of the 3D histogram titled `"Space Points"` with values `X`, `Y` and `Z`.
- If the histogram with given title does not exist yet it will be automatically booked with parameters `lowX` equal to 2.5, `highX` equal to 3.5, `lowY` equal to 4.5, `highY` equal to 5.5, `lowZ` equal to 6.5, `highZ` equal to 7.5, `binsX` equal to 10, `binsY` equal to 20 and `binsZ` equal to 30.

The histogram will get a unique integer identifier automatically assigned

See also:
  AIDA::IHistogram3D

Parameters:

  valueX | x value to be filled
  valueY | y value to be filled
  valueZ | z value to be filled
  title | histogram title (must be unique within the algorithm)
  lowX | low x limit for histogram
  highX | high x limit for histogram
  lowY | low y limit for histogram
  highY | high y limit for histogram
  lowZ | low z limit for histogram
  highZ | high z limit for histogram
  binsX | number of bins in x
  binsY | number of bins in y
  binsZ | number of bins in z
  weight | weight

Returns:
  pointer to AIDA 3D histogram

Implemented in HistoTool.

virtual AIDA::IHistogram3D* IHistoTool::plot3D | ( | const double | valueX,
|  | const double | valueY,
|  | const double | valueZ,
|  | const HistoID & | ID,
|  | const std::string & | title,
|  | const double | lowX,
|  | const double | highX,
|  | const double | lowY,
|  | const double | highY,
|  | const double | lowZ,
|  | const double | highZ,
|  | const unsigned long | binsX = `10`,
|  | const unsigned long | binsY = `10`,
|  | const unsigned long | binsZ = `10`,
|  | const double | weight = `1.0`
| ) |  | const`[pure virtual]`

fill the 3D histogram with forced ID assignment (book on demand)

         const double mass1 = ... ;
         const double mass2 = ... ;
         const double mass3 = ... ;
         plot3D( X, Y, Z, "Space Points" ,2.5 ,3.5, 4.5, 5.5, 6.5, 7.5, 10, 20, 30 );

- This example illustrates the filling of the 3D histogram titled `"Space Points"` with values `X`, `Y` and `Z`.
- If the histogram with given title does not exist yet it will be automatically booked with parameters `lowX` equal to 2.5, `highX` equal to 3.5, `lowY` equal to 4.5, `highY` equal to 5.5, `lowZ` equal to 6.5, `highZ` equal to 7.5, `binsX` equal to 10, `binsY` equal to 20 and `binsZ` equal to 30.

Attention:
  If the histogram with given ID is already booked through automatic assignment of histogram ID, the error will not be detected. Therefore it is recommended to use non-trivial histogram ID offset (property "HistoOffSet") if one need to combine these techniques together It is still desirable to use the unique histogram title to avoid a bad interference

Note : This method is more efficient that the similar method without forced ID, since the histogram lookup is faster using a numerical ID.

See also:
  AIDA::IHistogram3D

Parameters:

  valueX | x value to be filled
  valueY | y value to be filled
  valueZ | z value to be filled
  ID | Histogram ID to use
  title | histogram title (must be unique within the algorithm)
  lowX | low x limit for histogram
  highX | high x limit for histogram
  lowY | low y limit for histogram
  highY | high y limit for histogram
  lowZ | low z limit for histogram
  highZ | high z limit for histogram
  binsX | number of bins in x
  binsY | number of bins in y
  binsZ | number of bins in z
  weight | weight

Returns:
  pointer to AIDA 3D histogram

Implemented in HistoTool.

The documentation for this class was generated from the following files:

- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r4/GaudiAlg/GaudiAlg/IHistoTool.h
- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r4/GaudiAlg/src/lib/IHistoTool.cpp

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