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Reference Guide
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2 * Project: RooFit *
3 * Package: RooFitCore *
4 * File: $Id$
5 * Authors: *
6 * WV, Wouter Verkerke, NIKHEF, verkerke@nikhef.nl *
7 * *
8 * Copyright (c) 2000-2008, NIKHEF, Regents of the University of California *
9 * and Stanford University. All rights reserved. *
10 * *
11 *****************************************************************************/
13/** \class RooTMathReg
14 \ingroup Roofit
18#include "Riostream.h"
19#include "RooTMathReg.h"
24#include "TMath.h"
31 // Import function from TMath namespace
34 RooCFunction1Ref<double,double>::fmap().add("TMath::ACosH",TMath::ACosH,"t") ;
36 RooCFunction1Ref<double,double>::fmap().add("TMath::ASinH",TMath::ASinH,"t") ;
38 RooCFunction1Ref<double,double>::fmap().add("TMath::ATanH",TMath::ATanH,"t") ;
56 RooCFunction1Ref<double,double>::fmap().add("TMath::Gamma",TMath::Gamma,"z") ;
57 RooCFunction1Ref<double,double>::fmap().add("TMath::KolmogorovProb",TMath::KolmogorovProb,"z") ;
59 RooCFunction1Ref<double,double>::fmap().add("TMath::LnGamma",TMath::LnGamma,"z") ;
63 RooCFunction1Ref<double,double>::fmap().add("TMath::NormQuantile",TMath::NormQuantile,"p") ;
73 RooCFunction1Ref<double,int>::fmap().add("TMath::Factorial",TMath::Factorial,"i") ;
75 RooCFunction2Ref<double,double,double>::fmap().add("TMath::ATan2",TMath::ATan2, "y", "x") ;
76 RooCFunction2Ref<double,double,double>::fmap().add("TMath::Beta",TMath::Beta, "p", "q") ;
77 RooCFunction2Ref<double,double,double>::fmap().add("TMath::ChisquareQuantile",TMath::ChisquareQuantile, "p", "ndf") ;
78 RooCFunction2Ref<double,double,double>::fmap().add("TMath::Gamma",TMath::Gamma, "a", "x") ;
79 RooCFunction2Ref<double,double,double>::fmap().add("TMath::Hypot",TMath::Hypot, "x", "y") ;
80 RooCFunction2Ref<double,double,double>::fmap().add("TMath::Poisson",TMath::Poisson, "x", "par") ;
81 RooCFunction2Ref<double,double,double>::fmap().add("TMath::PoissonI",TMath::PoissonI, "x", "par") ;
82 RooCFunction2Ref<double,double,double>::fmap().add("TMath::Power",TMath::Power, "x", "y") ;
83 RooCFunction2Ref<double,double,double>::fmap().add("TMath::Sign",TMath::Sign, "a", "b") ;
84 RooCFunction2Ref<double,double,double>::fmap().add("TMath::Student",TMath::Student, "T", "ndf") ;
85 RooCFunction2Ref<double,double,double>::fmap().add("TMath::StudentI",TMath::StudentI, "T", "ndf") ;
86 RooCFunction2Ref<double,int,double>::fmap().add("TMath::BesselI",TMath::BesselI, "n","x") ;
87 RooCFunction2Ref<double,int,double>::fmap().add("TMath::BesselK",TMath::BesselK, "n", "x") ;
88 RooCFunction2Ref<double,double,int>::fmap().add("TMath::Prob",TMath::Prob,"chi2","ndf") ;
89 RooCFunction2Ref<double,double,int>::fmap().add("TMath::Ldexp",TMath::Ldexp,"x","exp") ;
90 RooCFunction2Ref<double,int,int>::fmap().add("TMath::Binomial",TMath::Binomial,"n","k") ;
93 RooCFunction3Ref<double,double,double,double>::fmap().add("TMath::BetaDist",TMath::BetaDist,"x","p","q") ;
94 RooCFunction3Ref<double,double,double,double>::fmap().add("TMath::BetaDistI",TMath::BetaDistI,"x","p","q") ;
95 RooCFunction3Ref<double,double,double,double>::fmap().add("TMath::BetaIncomplete",TMath::BetaIncomplete,"x","a","b") ;
96 RooCFunction3Ref<double,double,double,double>::fmap().add("TMath::BreitWigner",TMath::BreitWigner,"x","mean","gamma") ;
97 RooCFunction3Ref<double,double,double,double>::fmap().add("TMath::CauchyDist",TMath::CauchyDist,"x","t","s") ;
100 RooCFunction3Ref<double,double,double,double>::fmap().add("TMath::LaplaceDist",TMath::LaplaceDist,"x","alpha","beta") ;
101 RooCFunction3Ref<double,double,double,double>::fmap().add("TMath::LaplaceDistI",TMath::LaplaceDistI,"x","alpha","beta") ;
102 RooCFunction3Ref<double,double,double,double>::fmap().add("TMath::Vavilov",TMath::Vavilov,"x","kappa","beta2") ;
103 RooCFunction3Ref<double,double,double,double>::fmap().add("TMath::VavilovI",TMath::VavilovI,"x","kappa","beta2") ;
104 RooCFunction3Ref<double,double,double,bool>::fmap().add("TMath::StudentQuantile",TMath::StudentQuantile,"p","ndf","lower_tail") ;
105 RooCFunction3Ref<double,double,int,int>::fmap().add("TMath::BinomialI",TMath::BinomialI,"p","n","k") ;
107 RooCFunction4Ref<double,double,double,double,double>::fmap().add("TMath::GammaDist",TMath::GammaDist,"x","gamma","mu","beta") ;
108 RooCFunction4Ref<double,double,double,double,double>::fmap().add("TMath::LogNormal",TMath::LogNormal,"x","sigma","theta","m") ;
109 RooCFunction4Ref<double,double,double,double,int>::fmap().add("TMath::Voigt",TMath::Voigt,"x","sigma","lg","R") ;
110 RooCFunction4Ref<double,double,double,double,bool>::fmap().add("TMath::Gaus",TMath::Gaus,"x","mean","sigma","norm") ;
111 RooCFunction4Ref<double,double,double,double,bool>::fmap().add("TMath::Landau",TMath::Landau,"x","mpv","sigma","norm") ;
static RooTMathReg dummy
Definition: RooTMathReg.cxx:26
static RooCFunction1Map< VO, VI > & fmap()
static RooCFunction2Map< VO, VI1, VI2 > & fmap()
static RooCFunction3Map< VO, VI1, VI2, VI3 > & fmap()
static RooCFunction4Map< VO, VI1, VI2, VI3, VI4 > & fmap()
Double_t FDistI(Double_t F, Double_t N, Double_t M)
Calculates the cumulative distribution function of F-distribution, this function occurs in the statis...
Definition: TMath.cxx:2266
Double_t LogNormal(Double_t x, Double_t sigma, Double_t theta=0, Double_t m=1)
Computes the density of LogNormal distribution at point x.
Definition: TMath.cxx:2404
Double_t CosH(Double_t)
Definition: TMath.h:643
Double_t DiLog(Double_t x)
Modified Struve functions of order 1.
Definition: TMath.cxx:110
Double_t BetaDist(Double_t x, Double_t p, Double_t q)
Computes the probability density function of the Beta distribution (the distribution function is comp...
Definition: TMath.cxx:2051
Double_t ACos(Double_t)
Definition: TMath.h:658
Double_t BesselI(Int_t n, Double_t x)
Compute the Integer Order Modified Bessel function I_n(x) for n=0,1,2,... and any real x.
Definition: TMath.cxx:1572
Double_t Gaus(Double_t x, Double_t mean=0, Double_t sigma=1, Bool_t norm=kFALSE)
Calculate a gaussian function with mean and sigma.
Definition: TMath.cxx:448
Double_t Factorial(Int_t i)
Compute factorial(n).
Definition: TMath.cxx:247
Double_t BinomialI(Double_t p, Int_t n, Int_t k)
Suppose an event occurs with probability p per trial Then the probability P of its occurring k or mor...
Definition: TMath.cxx:2115
Double_t Vavilov(Double_t x, Double_t kappa, Double_t beta2)
Returns the value of the Vavilov density function.
Definition: TMath.cxx:2741
Double_t Binomial(Int_t n, Int_t k)
Calculate the binomial coefficient n over k.
Definition: TMath.cxx:2090
Double_t Prob(Double_t chi2, Int_t ndf)
Computation of the probability for a certain Chi-squared (chi2) and number of degrees of freedom (ndf...
Definition: TMath.cxx:621
Double_t ASin(Double_t)
Definition: TMath.h:651
Double_t Log2(Double_t x)
Definition: TMath.cxx:101
Double_t BesselK1(Double_t x)
modified Bessel function I_1(x)
Definition: TMath.cxx:1511
Double_t Exp(Double_t x)
Definition: TMath.h:717
Double_t BesselI1(Double_t x)
modified Bessel function K_0(x)
Definition: TMath.cxx:1476
Double_t Erf(Double_t x)
Computation of the error function erf(x).
Definition: TMath.cxx:184
Double_t PoissonI(Double_t x, Double_t par)
Compute the Poisson distribution function for (x,par) This is a non-smooth function.
Definition: TMath.cxx:599
Double_t CauchyDist(Double_t x, Double_t t=0, Double_t s=1)
Computes the density of Cauchy distribution at point x by default, standard Cauchy distribution is us...
Definition: TMath.cxx:2148
Double_t ATan(Double_t)
Definition: TMath.h:665
Double_t StruveL1(Double_t x)
Modified Struve functions of order 0.
Definition: TMath.cxx:1950
Double_t ASinH(Double_t)
Definition: TMath.cxx:64
Double_t LaplaceDistI(Double_t x, Double_t alpha=0, Double_t beta=1)
Computes the distribution function of Laplace distribution at point x, with location parameter alpha ...
Definition: TMath.cxx:2348
Double_t BreitWigner(Double_t x, Double_t mean=0, Double_t gamma=1)
Calculate a Breit Wigner function with mean and gamma.
Definition: TMath.cxx:437
T1 Sign(T1 a, T2 b)
Definition: TMathBase.h:165
Double_t Landau(Double_t x, Double_t mpv=0, Double_t sigma=1, Bool_t norm=kFALSE)
The LANDAU function.
Definition: TMath.cxx:469
Double_t Voigt(Double_t x, Double_t sigma, Double_t lg, Int_t r=4)
Computation of Voigt function (normalised).
Definition: TMath.cxx:882
Double_t Student(Double_t T, Double_t ndf)
Computes density function for Student's t- distribution (the probability function (integral of densit...
Definition: TMath.cxx:2590
Double_t BetaDistI(Double_t x, Double_t p, Double_t q)
Computes the distribution function of the Beta distribution.
Definition: TMath.cxx:2069
Double_t TanH(Double_t)
Definition: TMath.h:647
Double_t ACosH(Double_t)
Definition: TMath.cxx:77
Double_t BesselK0(Double_t x)
modified Bessel function I_0(x)
Definition: TMath.cxx:1442
Double_t BesselY0(Double_t x)
Bessel function J1(x) for any real x.
Definition: TMath.cxx:1687
Double_t ATan2(Double_t y, Double_t x)
Definition: TMath.h:669
Double_t BetaCf(Double_t x, Double_t a, Double_t b)
Continued fraction evaluation by modified Lentz's method used in calculation of incomplete Beta funct...
Definition: TMath.cxx:2000
Double_t ErfInverse(Double_t x)
returns the inverse error function x must be <-1<x<1
Definition: TMath.cxx:203
Double_t LaplaceDist(Double_t x, Double_t alpha=0, Double_t beta=1)
Computes the probability density function of Laplace distribution at point x, with location parameter...
Definition: TMath.cxx:2332
Double_t Log(Double_t x)
Definition: TMath.h:750
Double_t Erfc(Double_t x)
Compute the complementary error function erfc(x).
Definition: TMath.cxx:194
Double_t VavilovI(Double_t x, Double_t kappa, Double_t beta2)
Returns the value of the Vavilov distribution function.
Definition: TMath.cxx:2774
Double_t Beta(Double_t p, Double_t q)
Calculates Beta-function Gamma(p)*Gamma(q)/Gamma(p+q).
Definition: TMath.cxx:1991
Double_t Poisson(Double_t x, Double_t par)
Compute the Poisson distribution function for (x,par) The Poisson PDF is implemented by means of Eule...
Definition: TMath.cxx:568
Double_t Sqrt(Double_t x)
Definition: TMath.h:681
LongDouble_t Power(LongDouble_t x, LongDouble_t y)
Definition: TMath.h:725
Double_t Ldexp(Double_t x, Int_t exp)
Definition: TMath.h:721
Double_t BesselJ0(Double_t x)
modified Bessel function K_1(x)
Definition: TMath.cxx:1616
Double_t Gamma(Double_t z)
Computation of gamma(z) for all z.
Definition: TMath.cxx:348
Double_t StruveL0(Double_t x)
Struve functions of order 1.
Definition: TMath.cxx:1904
Double_t NormQuantile(Double_t p)
Computes quantiles for standard normal distribution N(0, 1) at probability p.
Definition: TMath.cxx:2423
Double_t Hypot(Double_t x, Double_t y)
Definition: TMath.cxx:57
Double_t Cos(Double_t)
Definition: TMath.h:631
Double_t StruveH0(Double_t x)
Bessel function Y1(x) for positive x.
Definition: TMath.cxx:1759
Double_t LnGamma(Double_t z)
Computation of ln[gamma(z)] for all z.
Definition: TMath.cxx:486
Double_t KolmogorovProb(Double_t z)
Calculates the Kolmogorov distribution function,.
Definition: TMath.cxx:663
Double_t ChisquareQuantile(Double_t p, Double_t ndf)
Evaluate the quantiles of the chi-squared probability distribution function.
Definition: TMath.cxx:2164
Double_t Sin(Double_t)
Definition: TMath.h:627
Double_t FDist(Double_t F, Double_t N, Double_t M)
Computes the density function of F-distribution (probability function, integral of density,...
Definition: TMath.cxx:2247
Double_t BesselK(Int_t n, Double_t x)
integer order modified Bessel function I_n(x)
Definition: TMath.cxx:1543
Double_t BesselJ1(Double_t x)
Bessel function J0(x) for any real x.
Definition: TMath.cxx:1651
Double_t BetaIncomplete(Double_t x, Double_t a, Double_t b)
Calculates the incomplete Beta-function.
Definition: TMath.cxx:2082
Double_t StruveH1(Double_t x)
Struve functions of order 0.
Definition: TMath.cxx:1828
Double_t Freq(Double_t x)
Computation of the normal frequency function freq(x).
Definition: TMath.cxx:265
Double_t Tan(Double_t)
Definition: TMath.h:635
Double_t LandauI(Double_t x)
Returns the value of the Landau distribution function at point x.
Definition: TMath.cxx:2803
Double_t ATanH(Double_t)
Definition: TMath.cxx:90
Double_t BesselI0(Double_t x)
integer order modified Bessel function K_n(x)
Definition: TMath.cxx:1408
Double_t Log10(Double_t x)
Definition: TMath.h:754
Double_t StudentI(Double_t T, Double_t ndf)
Calculates the cumulative distribution function of Student's t-distribution second parameter stands f...
Definition: TMath.cxx:2612
Double_t StudentQuantile(Double_t p, Double_t ndf, Bool_t lower_tail=kTRUE)
Computes quantiles of the Student's t-distribution 1st argument is the probability,...
Definition: TMath.cxx:2640
Double_t BesselY1(Double_t x)
Bessel function Y0(x) for positive x.
Definition: TMath.cxx:1721
Short_t Abs(Short_t d)
Definition: TMathBase.h:120
Double_t GammaDist(Double_t x, Double_t gamma, Double_t mu=0, Double_t beta=1)
Computes the density function of Gamma distribution at point x.
Definition: TMath.cxx:2315
Double_t ErfcInverse(Double_t x)
returns the inverse of the complementary error function x must be 0<x<2 implement using the quantile ...
Definition: TMath.cxx:237
Double_t SinH(Double_t)
Definition: TMath.h:639