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Reference Guide
Histogram Library

A general description of the Histogram library is documented in the class TH1.

ROOT supports the following histogram types:

Modules

 Painting classes
 
 Histogram classes.
 
 Graph classes.
 
 Function classes.
 
 ROOT 7 histogram classes.
 
 Advanced spectra processing classes.
 
 TUnfold classes
 

Classes

class  TBackCompFitter
 Backward compatible implementation of TVirtualFitter. More...
 
class  TBinomialEfficiencyFitter
 Binomial fitter for the division of two histograms. More...
 
class  TConfidenceLevel
 Class to compute 95% CL limits. More...
 
class  TEfficiency
 Class to handle efficiency histograms. More...
 
class  TFitResult
 Extends the ROOT::Fit::Result class with a TNamed inheritance providing easy possibility for I/O. More...
 
class  TFormula
 The Formula class. More...
 
class  ROOT::v5::TFormula
 The FORMULA class (ROOT version 5) More...
 
class  ROOT::v5::TFormulaPrimitive
 The Formula Primitive class. More...
 
class  THbookBranch
 HBOOK Branch. More...
 
class  THbookFile
 This class is an interface to the Hbook objects in Hbook files. More...
 
class  THbookKey
 HBOOK Key. More...
 
class  THbookTree
 A wrapper class supporting Hbook ntuples (CWN and RWN). More...
 
class  THnBase
 Multidimensional histogram base. More...
 
class  THnSparse
 Efficient multidimensional histogram. More...
 
class  TKDE
 Kernel Density Estimation class. More...
 
class  TLimit
 Algorithm to compute 95% C.L. More...
 
class  TMultiDimFit
 Multidimensional Fits in ROOT. More...
 
class  TPrincipal
 Principal Components Analysis (PCA) More...
 
class  TProfile2PolyBin
 Helper class to represent a bin in the TProfile2Poly histogram. More...
 
class  TSpline
 Base class for spline implementation containing the Draw/Paint methods. More...
 
class  TSpline3
 Class to create third splines to interpolate knots Arbitrary conditions can be introduced for first and second derivatives at beginning and ending points. More...
 
class  TSpline5
 Class to create quintic natural splines to interpolate knots Arbitrary conditions can be introduced for first and second derivatives using double knots (see BuildCoeff) for more on this. More...
 
class  TSplinePoly
 Base class for TSpline knot. More...
 
class  TSplinePoly3
 Class for TSpline3 knot. More...
 
class  TSplinePoly5
 Class for TSpline5 knot. More...
 
class  TSVDUnfold
 SVD Approach to Data Unfolding. More...
 
class  TVirtualFitter
 Abstract Base Class for Fitting. More...