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#ifndef BOOK_FOR_ROOT_HISTOGRAMS
#define BOOK_FOR_ROOT_HISTOGRAMS
#include <map>
#include <string>
#include "poly.h"
#include "TDirectory.h"
#include "TH1.h"
#include "TH1D.h"
#include "TH2D.h"
#include "TProfile.h"
#include "TH3D.h"
#include <boost/regex.hpp>
#include <boost/iterator/filter_iterator.hpp>
class Book {
typedef const double double_t;
typedef const unsigned long uint_t;
typedef const std::string string_t;
typedef std::map<std::string, TH1*> book_t;
book_t book_;
std::string title_;
TDirectory* directory;
struct match_name {
match_name(string_t re) : expression(re) {}
bool operator()(const book_t::const_iterator::value_type& p) { return regex_match(p.first, expression); }
private:
boost::regex expression;
};
public:
Book() : title_(""), directory(nullptr) {}
Book(string_t t) : title_(t), directory(new TDirectory(t.c_str(), t.c_str())) {}
string_t& title() const { return title_; }
bool empty() const { return book_.empty(); }
long size() const { return book_.size(); }
TH1* book(string_t name, TH1* const hist) {
book_[name] = hist;
hist->SetDirectory(directory);
if (!hist->GetSumw2N())
hist->Sumw2();
return hist;
}
TH1*& operator[](string_t name) { return book_[name]; }
const TH1* operator[](string_t name) const {
book_t::const_iterator it = book_.find(name);
return it == book_.end() ? nullptr : it->second;
}
typedef boost::filter_iterator<match_name, book_t::iterator> iterator;
typedef boost::filter_iterator<match_name, book_t::const_iterator> const_iterator;
iterator begin(string_t re = ".*") {
book_t::iterator b(book_.begin()), e(book_.end());
return boost::make_filter_iterator(match_name(re), b, e);
}
const_iterator begin(string_t re = ".*") const {
book_t::const_iterator b(book_.begin()), e(book_.end());
return boost::make_filter_iterator(match_name(re), b, e);
}
iterator end(string_t re = ".*") {
book_t::iterator e(book_.end());
return boost::make_filter_iterator(match_name(re), e, e);
}
const_iterator end(string_t re = ".*") const {
book_t::const_iterator e(book_.end());
return boost::make_filter_iterator(match_name(re), e, e);
}
iterator find(string_t name, string_t re = ".*") {
return boost::make_filter_iterator(match_name(re), book_.find(name), book_.end());
}
const_iterator find(string_t name, string_t re = ".*") const {
return boost::make_filter_iterator(match_name(re), book_.find(name), book_.end());
}
std::pair<iterator, iterator> filter_range(string_t re = ".*") { return std::make_pair(begin(re), end(re)); }
std::pair<const_iterator, const_iterator> filter_range(string_t re = ".*") const {
return std::make_pair(begin(re), end(re));
}
void erase(string_t name) {
book_t::iterator it = book_.find(name);
if (it != book_.end()) {
delete it->second;
book_.erase(it);
}
}
void erase(iterator it) {
delete it->second;
book_.erase(it.base());
}
void fill(double_t X, const char* name, uint_t NbinsX, double_t Xlow, double_t Xup, double_t W = 1) {
fill(X, std::string(name), NbinsX, Xlow, Xup, W);
}
void fill(double_t X, const poly<std::string>& names, uint_t NbinsX, double_t Xlow, double_t Xup, double_t W = 1) {
for (auto const& name : names) {
book_t::const_iterator current = book_.find(name);
if (current == book_.end())
book(name, new TH1D(name.c_str(), "", NbinsX, Xlow, Xup))->Fill(X, W);
else
current->second->Fill(X, W);
}
}
void fill(double_t X, double_t Y, const char* name, uint_t NbinsX, double_t Xlow, double_t Xup, double_t W = 1) {
fill(X, Y, std::string(name), NbinsX, Xlow, Xup, W);
}
void fill(double_t X,
double_t Y,
const poly<std::string>& names,
uint_t NbinsX,
double_t Xlow,
double_t Xup,
double_t W = 1) {
for (auto const& name : names) {
book_t::const_iterator current = book_.find(name);
if (current == book_.end())
static_cast<TProfile*>(book(name, new TProfile(name.c_str(), "", NbinsX, Xlow, Xup)))->Fill(X, Y, W);
else
static_cast<TProfile*>(current->second)->Fill(X, Y, W);
}
}
void fill(double_t X,
double_t Y,
const char* name,
uint_t NbinsX,
double_t Xlow,
double_t Xup,
uint_t NbinsY,
double_t Ylow,
double_t Yup,
double_t W = 1) {
fill(X, Y, std::string(name), NbinsX, Xlow, Xup, NbinsY, Ylow, Yup, W);
}
void fill(double_t X,
double_t Y,
const poly<std::string>& names,
uint_t NbinsX,
double_t Xlow,
double_t Xup,
uint_t NbinsY,
double_t Ylow,
double_t Yup,
double_t W = 1) {
for (auto const& name : names) {
book_t::const_iterator current = book_.find(name);
if (current == book_.end())
static_cast<TH2*>(book(name, new TH2D(name.c_str(), "", NbinsX, Xlow, Xup, NbinsY, Ylow, Yup)))->Fill(X, Y, W);
else
static_cast<TH2*>(current->second)->Fill(X, Y, W);
}
}
void fill(double_t X,
double_t Y,
double_t Z,
const char* name,
uint_t NbinsX,
double_t Xlow,
double_t Xup,
uint_t NbinsY,
double_t Ylow,
double_t Yup,
uint_t NbinsZ,
double_t Zlow,
double_t Zup,
double_t W = 1) {
fill(X, Y, Z, std::string(name), NbinsX, Xlow, Xup, NbinsY, Ylow, Yup, NbinsZ, Zlow, Zup);
}
void fill(double_t X,
double_t Y,
double_t Z,
const poly<std::string>& names,
uint_t NbinsX,
double_t Xlow,
double_t Xup,
uint_t NbinsY,
double_t Ylow,
double_t Yup,
uint_t NbinsZ,
double_t Zlow,
double_t Zup,
double_t W = 1) {
for (auto const& name : names) {
book_t::const_iterator current = book_.find(name);
if (current == book_.end())
static_cast<TH3*>(
book(name, new TH3D(name.c_str(), "", NbinsX, Xlow, Xup, NbinsY, Ylow, Yup, NbinsZ, Zlow, Zup)))
->Fill(X, Y, Z, W);
else
static_cast<TH3*>(current->second)->Fill(X, Y, Z, W);
}
}
};
#endif
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