#include <CommonTools/Utils/interface/ExpressionHisto.h>

Public Member Functions
	ExpressionHisto (const edm::ParameterSet &iConfig)

bool	fill (const T &element, double weight=1.0, uint32_t i=0)

void	initialize (TFileDirectory &fs)

	~ExpressionHisto ()

Private Attributes
std::string	description

StringObjectFunction< T >	function

TH1F **	hist

double	max

double	min

std::string	name

int	nbins

uint32_t	nhistos

bool	separatePlots

Detailed Description

template<typename T>
class ExpressionHisto< T >

Description: Histogram tool using expressions

Usage: <usage>

Definition at line 34 of file ExpressionHisto.h.

Constructor & Destructor Documentation

template<typename T >

ExpressionHisto< T >::ExpressionHisto ( const edm::ParameterSet & iConfig )

Definition at line 58 of file ExpressionHisto.h.

References ExpressionHisto< T >::nhistos, and ExpressionHisto< T >::separatePlots.

                                                                  :
   min(iConfig.template getUntrackedParameter<double>("min")),
   max(iConfig.template getUntrackedParameter<double>("max")),
   nbins(iConfig.template getUntrackedParameter<int>("nbins")),
   name(iConfig.template getUntrackedParameter<std::string>("name")),
   description(iConfig.template getUntrackedParameter<std::string>("description")),
   function(iConfig.template getUntrackedParameter<std::string>("plotquantity"), 
            iConfig.template getUntrackedParameter<bool>("lazyParsing", false)) {
   int32_t itemsToPlot = iConfig.template getUntrackedParameter<int32_t>("itemsToPlot", -1);
   if (itemsToPlot <= 0) {
       nhistos = 1; separatePlots = false;
   } else {
       nhistos = itemsToPlot; separatePlots = true;
   }
 }

template<typename T >

ExpressionHisto< T >::~ExpressionHisto ( )

Definition at line 75 of file ExpressionHisto.h.

75 {

76 }

Member Function Documentation

template<typename T >

bool ExpressionHisto< T >::fill	(	const T &	element,
		double	weight = `1.0`,
		uint32_t	i = `0`
	)

Plot the quantity for the specified element and index. Returns true if the quantity has been plotted, false otherwise. A return value of "false" means "please don't send any more elements". The default "i = 0" is to keep backwards compatibility with usages outside HistoAnalyzer

Definition at line 103 of file ExpressionHisto.h.

References ExpressionHisto< T >::hist, mps_fire::i, ExpressionHisto< T >::nhistos, and ExpressionHisto< T >::separatePlots.

 {
   if (!separatePlots) hist[0]->Fill( function(element), weight );
   else if (i < nhistos)  hist[i]->Fill( function(element), weight );
   else return false;
   return true;
 }

template<typename T >

void ExpressionHisto< T >::initialize ( TFileDirectory & fs )

Definition at line 79 of file ExpressionHisto.h.

References ExpressionHisto< T >::description, ExpressionHisto< T >::hist, mps_fire::i, TFileDirectory::make(), ExpressionHisto< T >::max, ExpressionHisto< T >::min, ExpressionHisto< T >::name, ExpressionHisto< T >::nbins, ExpressionHisto< T >::nhistos, and ExpressionHisto< T >::separatePlots.

Referenced by HistoAnalyzer< C >::HistoAnalyzer().

 {
    hist = new TH1F*[nhistos];
    char buff[1024],baff[1024];
    if (separatePlots) {
        for (uint32_t i = 0; i < nhistos; i++) {
                if (strstr(name.c_str(), "%d") != 0) {
                        snprintf(buff, 1024, name.c_str(), i+1);
                } else {
                        snprintf(buff, 1024, "%s [#%d]", name.c_str(), i+1);
                }
                if (strstr(description.c_str(), "%d") != 0) {
                        snprintf(baff, 1024, description.c_str(), i+1);
                } else {
                        snprintf(baff, 1024, "%s [#%d]", description.c_str(), i+1);
                }
                hist[i] = fs.make<TH1F>(buff,baff,nbins,min,max);
        }
     } else {
        hist[0] = fs.make<TH1F>(name.c_str(),description.c_str(),nbins,min,max);
     }
 }