Namespaces
	Detail

	Hist

	Internal

	TDF

Classes
class	TAxisBase
	Histogram axis base class. More...

class	TAxisConfig
	Objects used to configure the different axis types. More...

class	TAxisEquidistant
	Axis with equidistant bin borders. More...

class	TAxisGrow
	An axis that can extend its range, keeping the number of its bins unchanged. More...

class	TAxisIrregular
	An axis with non-equidistant bins (also known as "variable binning"). More...

class	TAxisLabels
	A TAxisGrow that has a label assigned to each bin and a bin width of 1. More...

class	TAxisView
	Common view on a TAxis, no matter what its kind. More...

class	TBufferMerger
	TBufferMerger is a class to facilitate writing data in parallel from multiple threads, while writing to a single output file. More...

class	TBufferMergerFile

class	TCanvas
	Graphic container for `TDrawable`-s. More...

class	TDataFrame
	ROOT's TDataFrame offers a high level interface for analyses of data stored in TTrees. More...

class	TDirectory
	Key/value store of objects. More...

class	TDirectoryTypeMismatch
	Objects of this class are thrown to signal that the value known under the given name . More...

class	TDirectoryUnknownKey
	Objects of this class are thrown to signal that no key with that name exists. More...

class	TFile
	A ROOT file. More...

class	TFilePtr
	Points to an object that stores or reads objects in ROOT's binary format. More...

class	TFitResult

class	TFunction

class	THist
	Histogram class for histograms with `DIMENSIONS` dimensions, where each bin count is stored by a value of type `PRECISION`. More...

class	THist< DIMENSIONS, PRECISION >
	THist with no STAT parameter uses THistStatContent by default. More...

class	THistBufferedFill
	Buffers calls to Fill(). More...

class	THistConcurrentFiller
	Buffers a thread's Fill calls and submits them to the THistConcurrentFillManager. More...

class	THistConcurrentFillManager
	Manages the synchronization of calls to FillN(). More...

class	THistDataMomentUncert
	For now do as TH1: calculate first (xw) and second (x^2w) moment. More...

class	THistDrawOptions
	Drawing options for a histogram with DIMENSIONS. More...

class	THistStatContent
	Basic histogram statistics, keeping track of the bin content and the total number of calls to Fill(). More...

class	THistStatRuntime
	Interface implementing a pure virtual functions DoFill(), DoFillN(). More...

class	THistStatTotalSumOfSquaredWeights
	Keeps track of the histogram's total sum of squared weights. More...

class	THistStatTotalSumOfWeights
	Keeps track of the histogram's total sum of weights. More...

class	THistStatUncertainty
	Histogram statistics to keep track of the Poisson uncertainty per bin. More...

class	THistView
	A view on a histogram, selecting a range on a subset of dimensions. More...

struct	THistViewOutOfRange

class	TLogEntry

class	TLogHandler
	Abstract TLogHandler base class. More...

class	TLogManager

Typedefs
THist Typedefs
Convenience typedefs (ROOT6-compatible type names)
using	TH1D = THist< 1, double, THistStatContent, THistStatUncertainty >

using	TH1F = THist< 1, float, THistStatContent, THistStatUncertainty >

using	TH1C = THist< 1, char, THistStatContent >

using	TH1I = THist< 1, int, THistStatContent >

using	TH1LL = THist< 1, int64_t, THistStatContent >

using	TH2D = THist< 2, double, THistStatContent, THistStatUncertainty >

using	TH2F = THist< 2, float, THistStatContent, THistStatUncertainty >

using	TH2C = THist< 2, char, THistStatContent >

using	TH2I = THist< 2, int, THistStatContent >

using	TH2LL = THist< 2, int64_t, THistStatContent >

using	TH3D = THist< 3, double, THistStatContent, THistStatUncertainty >

using	TH3F = THist< 3, float, THistStatContent, THistStatUncertainty >

using	TH3C = THist< 3, char, THistStatContent >

using	TH3I = THist< 3, int, THistStatContent >

using	TH3LL = THist< 3, int64_t, THistStatContent >

Enumerations
enum	ELogLevel { ELogLevel::kDebug, ELogLevel::kInfo, ELogLevel::kWarning, ELogLevel::kError, ELogLevel::kFatal }
	Kinds of diagnostics. More...

Functions
template<int DIMENSIONS, class PRECISION_TO , class PRECISION_FROM , template< int D_, class P_, template< class P__ > class S_ > class... STAT_TO, template< int D_, class P_, template< class P__ > class S_ > class... STAT_FROM>
void	Add (THist< DIMENSIONS, PRECISION_TO, STAT_TO... > &to, const THist< DIMENSIONS, PRECISION_FROM, STAT_FROM... > &from)
	Add two histograms. More...

template<int DIMENSIONS, class PRECISION , template< int D_, class P_, template< class P__ > class S_ > class... STAT>
TFitResult	FitTo (const THist< DIMENSIONS, PRECISION, STAT... > &hist, const TFunction< DIMENSIONS > &func, std::array_view< double > paramInit)

template<int DIMENSIONS, class PRECISION , template< int D_, class P_, template< class P__ > class S_ > class... STAT>
std::unique_ptr< Internal::TDrawable >	GetDrawable (const std::shared_ptr< THist< DIMENSIONS, PRECISION, STAT... >> &hist, THistDrawOptions< DIMENSIONS > opts={})
	Interface to graphics taking a unique_ptr<THist>. More...

template<int DIMENSIONS, class PRECISION , template< int D_, class P_, template< class P__ > class S_ > class... STAT>
std::unique_ptr< Internal::TDrawable >	GetDrawable (std::unique_ptr< THist< DIMENSIONS, PRECISION, STAT... >> &&hist, THistDrawOptions< DIMENSIONS > opts={})
	Interface to graphics taking a shared_ptr<THist>. More...

template<int DIMENSIONS, class PRECISION , template< int D_, class P_, template< class P__ > class S_ > class... STAT>
THist< DIMENSIONS, PRECISION, STAT... >	HistFromImpl (std::unique_ptr< typename THist< DIMENSIONS, PRECISION, STAT... >::ImplBase_t > pHistImpl)
	Adopt an external, stand-alone THistImpl. The THist will take ownership. More...

template<int DIMENSIONS, class PRECISION , template< int D_, class P_, template< class P__ > class S_ > class... STAT>
class THist< DIMENSIONS, PRECISION, STAT... >	HistFromImpl (std::unique_ptr< typename THist< DIMENSIONS, PRECISION, STAT... >::ImplBase_t > pHistImpl)
	Adopt an external, stand-alone THistImpl. The THist will take ownership. More...

bool	operator== (const TAxisEquidistant &lhs, const TAxisEquidistant &rhs) noexcept
	Equality-compare two TAxisEquidistant. More...

template<int DIMENSIONS, class PRECISION , template< int D_, class P_, template< class P__ > class S_ > class... STAT>
void	swap (THist< DIMENSIONS, PRECISION, STAT... > &a, THist< DIMENSIONS, PRECISION, STAT... > &b) noexcept
	Swap two histograms. More...

TAxisBase::const_iterator comparison operators
bool	operator< (TAxisBase::const_iterator lhs, TAxisBase::const_iterator rhs) noexcept
	i < j More...

bool	operator> (TAxisBase::const_iterator lhs, TAxisBase::const_iterator rhs) noexcept
	i > j More...

bool	operator<= (TAxisBase::const_iterator lhs, TAxisBase::const_iterator rhs) noexcept
	i <= j More...

bool	operator>= (TAxisBase::const_iterator lhs, TAxisBase::const_iterator rhs) noexcept
	i >= j More...

bool	operator== (TAxisBase::const_iterator lhs, TAxisBase::const_iterator rhs) noexcept
	i == j More...

bool	operator!= (TAxisBase::const_iterator lhs, TAxisBase::const_iterator rhs) noexcept
	i != j More...

Axis Compatibility
enum	EAxisCompatibility { EAxisCompatibility::kIdentical, EAxisCompatibility::kContains, EAxisCompatibility::kSampling, EAxisCompatibility::kIncompatible }

EAxisCompatibility	CanMap (TAxisEquidistant &target, TAxisEquidistant &source) noexcept
	Whether (and how) the source axis can be merged into the target axis. More...

Typedef Documentation

◆ TH1C

using ROOT::Experimental::TH1C = typedef THist<1, char, THistStatContent>

Definition at line 312 of file THist.hxx.

◆ TH1D

using ROOT::Experimental::TH1D = typedef THist<1, double, THistStatContent, THistStatUncertainty>

Definition at line 310 of file THist.hxx.

◆ TH1F

using ROOT::Experimental::TH1F = typedef THist<1, float, THistStatContent, THistStatUncertainty>

Definition at line 311 of file THist.hxx.

◆ TH1I

using ROOT::Experimental::TH1I = typedef THist<1, int, THistStatContent>

Definition at line 313 of file THist.hxx.

◆ TH1LL

using ROOT::Experimental::TH1LL = typedef THist<1, int64_t, THistStatContent>

Definition at line 314 of file THist.hxx.

◆ TH2C

using ROOT::Experimental::TH2C = typedef THist<2, char, THistStatContent>

Definition at line 318 of file THist.hxx.

◆ TH2D

using ROOT::Experimental::TH2D = typedef THist<2, double, THistStatContent, THistStatUncertainty>

Definition at line 316 of file THist.hxx.

◆ TH2F

using ROOT::Experimental::TH2F = typedef THist<2, float, THistStatContent, THistStatUncertainty>

Definition at line 317 of file THist.hxx.

◆ TH2I

using ROOT::Experimental::TH2I = typedef THist<2, int, THistStatContent>

Definition at line 319 of file THist.hxx.

◆ TH2LL

using ROOT::Experimental::TH2LL = typedef THist<2, int64_t, THistStatContent>

Definition at line 320 of file THist.hxx.

◆ TH3C

using ROOT::Experimental::TH3C = typedef THist<3, char, THistStatContent>

Definition at line 324 of file THist.hxx.

◆ TH3D

using ROOT::Experimental::TH3D = typedef THist<3, double, THistStatContent, THistStatUncertainty>

Definition at line 322 of file THist.hxx.

◆ TH3F

using ROOT::Experimental::TH3F = typedef THist<3, float, THistStatContent, THistStatUncertainty>

Definition at line 323 of file THist.hxx.

◆ TH3I

using ROOT::Experimental::TH3I = typedef THist<3, int, THistStatContent>

Definition at line 325 of file THist.hxx.

◆ TH3LL

using ROOT::Experimental::TH3LL = typedef THist<3, int64_t, THistStatContent>

Definition at line 326 of file THist.hxx.

Enumeration Type Documentation

◆ EAxisCompatibility

enum ROOT::Experimental::EAxisCompatibility

strong

Enumerator
kIdentical	Source and target axes are identical.
kContains	The source is a subset of bins of the target axis.
kSampling	The bins of the source axis have finer granularity, but the bin borders are compatible. Example: source: 0., 1., 2., 3., 4., 5., 6.; target: 0., 2., 5., 6. Note that this is not a symmetrical property: only one of CanMerge(source, target), CanMap(target, source) can return kContains.
kIncompatible	The source axis and target axis have different binning. Example: source: 0., 1., 2., 3., 4., target: 0., 0.1, 0.2, 0.3, 0.4

Definition at line 931 of file TAxis.hxx.

◆ ELogLevel

enum ROOT::Experimental::ELogLevel

strong

Kinds of diagnostics.

Enumerator
kDebug	Debug information; only useful for developers.
kInfo	Informational messages; used for instance for tracing.
kWarning	Warnings about likely unexpected behavior.
kError
kFatal

Definition at line 31 of file TLogger.hxx.

Function Documentation

◆ Add()

template<int DIMENSIONS, class PRECISION_TO , class PRECISION_FROM , template< int D_, class P_, template< class P__ > class S_ > class... STAT_TO, template< int D_, class P_, template< class P__ > class S_ > class... STAT_FROM>

void ROOT::Experimental::Add	(	THist< DIMENSIONS, PRECISION_TO, STAT_TO... > &	to,
		const THist< DIMENSIONS, PRECISION_FROM, STAT_FROM... > &	from
	)

Add two histograms.

This is the generic, inefficient version for now; it assumes no matching axes.

Definition at line 336 of file THist.hxx.

◆ CanMap()

ROOT::Experimental::EAxisCompatibility ROOT::Experimental::CanMap	(	TAxisEquidistant &	target,
		TAxisEquidistant &	source
	)

noexcept

Whether (and how) the source axis can be merged into the target axis.

Definition at line 49 of file TAxis.cxx.

◆ FitTo()

template<int DIMENSIONS, class PRECISION , template< int D_, class P_, template< class P__ > class S_ > class... STAT>

TFitResult ROOT::Experimental::FitTo	(	const THist< DIMENSIONS, PRECISION, STAT... > &	hist,
		const TFunction< DIMENSIONS > &	func,
		std::array_view< double >	paramInit
	)

Definition at line 41 of file TFit.hxx.

◆ GetDrawable() [1/2]

template<int DIMENSIONS, class PRECISION , template< int D_, class P_, template< class P__ > class S_ > class... STAT>

std::unique_ptr<Internal::TDrawable> ROOT::Experimental::GetDrawable	(	const std::shared_ptr< THist< DIMENSIONS, PRECISION, STAT... >> &	hist,
		THistDrawOptions< DIMENSIONS >	opts = `{}`
	)

Interface to graphics taking a unique_ptr<THist>.

Definition at line 357 of file THist.hxx.

◆ GetDrawable() [2/2]

template<int DIMENSIONS, class PRECISION , template< int D_, class P_, template< class P__ > class S_ > class... STAT>

std::unique_ptr<Internal::TDrawable> ROOT::Experimental::GetDrawable	(	std::unique_ptr< THist< DIMENSIONS, PRECISION, STAT... >> &&	hist,
		THistDrawOptions< DIMENSIONS >	opts = `{}`
	)

Interface to graphics taking a shared_ptr<THist>.

Definition at line 367 of file THist.hxx.

◆ HistFromImpl() [1/2]

template<int DIMENSIONS, class PRECISION , template< int D_, class P_, template< class P__ > class S_ > class... STAT>

THist<DIMENSIONS, PRECISION, STAT...> ROOT::Experimental::HistFromImpl ( std::unique_ptr< typename THist< DIMENSIONS, PRECISION, STAT... >::ImplBase_t > pHistImpl )

Adopt an external, stand-alone THistImpl. The THist will take ownership.

Definition at line 297 of file THist.hxx.

◆ HistFromImpl() [2/2]

template<int DIMENSIONS, class PRECISION , template< int D_, class P_, template< class P__ > class S_ > class... STAT>

class THist< DIMENSIONS, PRECISION, STAT... > ROOT::Experimental::HistFromImpl ( std::unique_ptr< typename THist< DIMENSIONS, PRECISION, STAT... >::ImplBase_t > pHistImpl )

Adopt an external, stand-alone THistImpl. The THist will take ownership.

Definition at line 297 of file THist.hxx.

◆ operator!=()

bool ROOT::Experimental::operator!=	(	TAxisBase::const_iterator	lhs,
		TAxisBase::const_iterator	rhs
	)

inlinenoexcept

i != j

Definition at line 296 of file TAxis.hxx.

◆ operator<()

bool ROOT::Experimental::operator<	(	TAxisBase::const_iterator	lhs,
		TAxisBase::const_iterator	rhs
	)

inlinenoexcept

i < j

Definition at line 266 of file TAxis.hxx.

◆ operator<=()

bool ROOT::Experimental::operator<=	(	TAxisBase::const_iterator	lhs,
		TAxisBase::const_iterator	rhs
	)

inlinenoexcept

i <= j

Definition at line 278 of file TAxis.hxx.

◆ operator==() [1/2]

bool ROOT::Experimental::operator==	(	TAxisBase::const_iterator	lhs,
		TAxisBase::const_iterator	rhs
	)

inlinenoexcept

i == j

Definition at line 290 of file TAxis.hxx.

◆ operator==() [2/2]

bool ROOT::Experimental::operator==	(	const TAxisEquidistant &	lhs,
		const TAxisEquidistant &	rhs
	)

inlinenoexcept

Equality-compare two TAxisEquidistant.

Definition at line 537 of file TAxis.hxx.

◆ operator>()

bool ROOT::Experimental::operator>	(	TAxisBase::const_iterator	lhs,
		TAxisBase::const_iterator	rhs
	)

inlinenoexcept

i > j

Definition at line 272 of file TAxis.hxx.

◆ operator>=()

bool ROOT::Experimental::operator>=	(	TAxisBase::const_iterator	lhs,
		TAxisBase::const_iterator	rhs
	)

inlinenoexcept

i >= j

Definition at line 284 of file TAxis.hxx.

◆ swap()

template<int DIMENSIONS, class PRECISION , template< int D_, class P_, template< class P__ > class S_ > class... STAT>

void ROOT::Experimental::swap	(	THist< DIMENSIONS, PRECISION, STAT... > &	a,
		THist< DIMENSIONS, PRECISION, STAT... > &	b
	)

noexcept

Swap two histograms.

Very efficient; swaps the fImpl pointers.

Definition at line 205 of file THist.hxx.

Namespaces

Classes

Typedefs

Enumerations

Functions

Axis Compatibility

Typedef Documentation

◆ TH1C

◆ TH1D

◆ TH1F

◆ TH1I

◆ TH1LL

◆ TH2C

◆ TH2D

◆ TH2F

◆ TH2I

◆ TH2LL

◆ TH3C

◆ TH3D

◆ TH3F

◆ TH3I

◆ TH3LL

Enumeration Type Documentation

◆ EAxisCompatibility

◆ ELogLevel

Function Documentation

◆ Add()

◆ CanMap()

◆ FitTo()

◆ GetDrawable() [1/2]

◆ GetDrawable() [2/2]

◆ HistFromImpl() [1/2]

◆ HistFromImpl() [2/2]

◆ operator!=()

◆ operator<()

◆ operator<=()

◆ operator==() [1/2]

◆ operator==() [2/2]

◆ operator>()

◆ operator>=()

◆ swap()