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Reference Guide
TSpline2.h
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// @(#)root/tmva $Id$
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// Author: Andreas Hoecker, Joerg Stelzer, Helge Voss, Kai Voss
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/**********************************************************************************
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* Project: TMVA - a Root-integrated toolkit for multivariate data analysis *
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* Package: TMVA *
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* Class : TSpline2 *
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* Web : http://tmva.sourceforge.net *
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* *
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* Description: *
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* Quadratic spline class; uses quadrax function for interpolation *
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* *
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* Authors (alphabetical): *
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* Andreas Hoecker <Andreas.Hocker@cern.ch> - CERN, Switzerland *
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* Helge Voss <Helge.Voss@cern.ch> - MPI-K Heidelberg, Germany *
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* Kai Voss <Kai.Voss@cern.ch> - U. of Victoria, Canada *
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* *
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* Copyright (c) 2005: *
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* CERN, Switzerland *
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* U. of Victoria, Canada *
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* MPI-K Heidelberg, Germany *
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* *
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* Redistribution and use in source and binary forms, with or without *
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* modification, are permitted according to the terms listed in LICENSE *
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* (http://tmva.sourceforge.net/LICENSE) *
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**********************************************************************************/
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#ifndef ROOT_TMVA_TSpline2
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#define ROOT_TMVA_TSpline2
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//////////////////////////////////////////////////////////////////////////
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// //
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// TSpline2 //
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// //
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// Quadratic interpolation class (using quadrax) //
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// //
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//////////////////////////////////////////////////////////////////////////
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#include "
TSpline.h
"
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namespace
TMVA
{
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class
TSpline2
:
public
TSpline
{
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public
:
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TSpline2
(
const
TString
& title,
TGraph
* theGraph );
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virtual
~TSpline2
(
void
);
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virtual
Double_t
Eval
(
Double_t
x
)
const
;
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// dummy implementations
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virtual
void
BuildCoeff
(
void
);
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virtual
void
GetKnot
(
Int_t
i,
Double_t
&
x
,
Double_t
&
y
)
const
;
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private
:
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TGraph
*
fGraph
;
// graph that is splined
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Double_t
Quadrax
(
Float_t
dm,
Float_t
dm1,
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Float_t
dm2,
Float_t
dm3,
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Float_t
cos1,
Float_t
cos2,
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Float_t
cos3 )
const
;
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ClassDef
(
TSpline2
,0);
//Quadratic interpolation class (using quadrax)
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};
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}
// namespace TMVA
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#endif
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TMVA::TSpline2::Quadrax
Double_t Quadrax(Float_t dm, Float_t dm1, Float_t dm2, Float_t dm3, Float_t cos1, Float_t cos2, Float_t cos3) const
quadratic interpolation Revised and checked by Francois Nov, 16th, 2000 Note the beautiful non-sponta...
Definition:
TSpline2.cxx:140
TMVA::TSpline2::TSpline2
TSpline2(const TString &title, TGraph *theGraph)
constructor from TGraph TSpline is a TNamed object
Definition:
TSpline2.cxx:45
Float_t
float Float_t
Definition:
RtypesCore.h:57
TMVA::TSpline2::fGraph
TGraph * fGraph
Definition:
TSpline2.h:58
x
Double_t x[n]
Definition:
legend1.C:17
TSpline
Base class for spline implementation containing the Draw/Paint methods.
Definition:
TSpline.h:31
TString
Basic string class.
Definition:
TString.h:136
TMVA::TSpline2::Eval
virtual Double_t Eval(Double_t x) const
returns quadratically interpolated TGraph entry around x
Definition:
TSpline2.cxx:62
TSpline.h
y
Double_t y[n]
Definition:
legend1.C:17
TMVA::TSpline2::BuildCoeff
virtual void BuildCoeff(void)
no coefficients to precompute
Definition:
TSpline2.cxx:122
TMVA::TSpline2::~TSpline2
virtual ~TSpline2(void)
destructor
Definition:
TSpline2.cxx:54
Double_t
double Double_t
Definition:
RtypesCore.h:59
TGraph
A TGraph is an object made of two arrays X and Y with npoints each.
Definition:
TGraph.h:41
TMVA::TSpline2
Quadratic interpolation of TGraph.
Definition:
TSpline2.h:43
ClassDef
#define ClassDef(name, id)
Definition:
Rtypes.h:325
TMVA::TSpline2::GetKnot
virtual void GetKnot(Int_t i, Double_t &x, Double_t &y) const
no knots
Definition:
TSpline2.cxx:129
TMVA
create variable transformations
Definition:
GeneticMinimizer.h:22
int
tmva
tmva
inc
TMVA
TSpline2.h
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