Additional protection

[u/mrichter/AliRoot.git] / RALICE / AliMath.h

diff --git a/RALICE/AliMath.h b/RALICE/AliMath.h
index 3ff93f4d4f50ddbf3f240c1ce27c3134f8b99895..ca66819f9299627be665b0b6c4bca82bfbdba87a 100644 (file)
--- a/RALICE/AliMath.h
+++ b/RALICE/AliMath.h
@@ -8,6 +8,9 @@
 #include <math.h>
  
 #include "TObject.h"
+#include "TF1.h"
+#include "TString.h"
+#include "TMath.h"
  
 class AliMath : public TObject
 {
@@ -23,6 +26,18 @@ class AliMath : public TObject
   Double_t Prob(Double_t chi2,Int_t ndf,Int_t mode=1) const; // Compute Chi-squared probability
   Double_t BesselI(Int_t n,Double_t x) const;                // Compute integer order mod. Bessel function I_n(x)
   Double_t BesselK(Int_t n,Double_t x) const;                // Compute integer order mod. Bessel function K_n(x)
+  TF1 Chi2Dist(Int_t ndf) const;                             // Provide the Chi-squared distribution function
+  TF1 StudentDist(Double_t ndf) const;                       // Provide the Student's T distribution function
+  TF1 FratioDist(Int_t ndf1,Int_t ndf2) const;               // Provide the Fratio distribution function
+  TF1 BinomialDist(Int_t n,Double_t p) const;                // Provide the Binomial distribution function
+  TF1 NegBinomialDist(Int_t k,Double_t p) const;             // Provide the Negative Binomial distribution function
+  TF1 PoissonDist(Double_t mu) const;                        // Provide the Poisson distribution function
+  Double_t Chi2Pvalue(Double_t chi2,Int_t ndf,Int_t sides=0,Int_t sigma=0,Int_t mode=1) const; // Chi-squared P-value
+  Double_t StudentPvalue(Double_t t,Double_t ndf,Int_t sides=0,Int_t sigma=0) const; // Student's P-value
+  Double_t FratioPvalue(Double_t f,Int_t ndf1,Int_t ndf2,Int_t sides=0,Int_t sigma=0) const; // F ratio P-value
+  Double_t BinomialPvalue(Int_t k,Int_t n,Double_t p,Int_t sides=0,Int_t sigma=0,Int_t mode=0) const; // Bin. P-value
+  Double_t PoissonPvalue(Int_t k,Double_t mu,Int_t sides=0,Int_t sigma=0) const; // Poisson P-value
+  Double_t NegBinomialPvalue(Int_t n,Int_t k,Double_t p,Int_t sides=0,Int_t sigma=0,Int_t mode=0) const; // NegBin. P-value
  
  protected:
   Double_t GamSer(Double_t a,Double_t x) const; // Compute P(a,x) via serial representation
@@ -32,7 +47,7 @@ class AliMath : public TObject
   Double_t BesselI1(Double_t x) const;          // Compute modified Bessel function I_1(x)
   Double_t BesselK1(Double_t x) const;          // Compute modified Bessel function K_1(x)
  
- ClassDef(AliMath,3) // Various mathematical tools for physics analysis.
+ ClassDef(AliMath,4) // Various mathematical tools for physics analysis.
  
 };
 #endif