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TGraph.h
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1// @(#)root/hist:$Id$
2// Author: Rene Brun, Olivier Couet 12/12/94
3
4/*************************************************************************
5 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
6 * All rights reserved. *
7 * *
8 * For the licensing terms see $ROOTSYS/LICENSE. *
9 * For the list of contributors see $ROOTSYS/README/CREDITS. *
10 *************************************************************************/
11
12#ifndef ROOT_TGraph
13#define ROOT_TGraph
14
15
16//////////////////////////////////////////////////////////////////////////
17// //
18// TGraph //
19// //
20// Graph graphics class. //
21// //
22//////////////////////////////////////////////////////////////////////////
23
24#include "TNamed.h"
25#include "TAttLine.h"
26#include "TAttFill.h"
27#include "TAttMarker.h"
28#include "TVectorFfwd.h"
29#include "TVectorDfwd.h"
30#include "TFitResultPtr.h"
31
32class TBrowser;
33class TAxis;
34class TH1;
35class TH1F;
36class TCollection;
37class TF1;
38class TSpline;
39class TList;
40
41class TGraph : public TNamed, public TAttLine, public TAttFill, public TAttMarker {
42
43protected:
44
45 Int_t fMaxSize; ///<!Current dimension of arrays fX and fY
46 Int_t fNpoints; ///< Number of points <= fMaxSize
47 Double_t *fX; ///<[fNpoints] array of X points
48 Double_t *fY; ///<[fNpoints] array of Y points
49 TList *fFunctions; ///< Pointer to list of functions (fits and user)
50 TH1F *fHistogram; ///< Pointer to histogram used for drawing axis
51 Double_t fMinimum; ///< Minimum value for plotting along y
52 Double_t fMaximum; ///< Maximum value for plotting along y
53
54 static void SwapValues(Double_t* arr, Int_t pos1, Int_t pos2);
55 virtual void SwapPoints(Int_t pos1, Int_t pos2);
56
57 virtual Double_t **Allocate(Int_t newsize);
58 Double_t **AllocateArrays(Int_t Narrays, Int_t arraySize);
59 virtual Bool_t CopyPoints(Double_t **newarrays, Int_t ibegin, Int_t iend, Int_t obegin);
60 virtual void CopyAndRelease(Double_t **newarrays, Int_t ibegin, Int_t iend, Int_t obegin);
62 Double_t **ExpandAndCopy(Int_t size, Int_t iend);
63 virtual void FillZero(Int_t begin, Int_t end, Bool_t from_ctor = kTRUE);
64 Double_t **ShrinkAndCopy(Int_t size, Int_t iend);
65 virtual Bool_t DoMerge(const TGraph * g);
66
67public:
68 // TGraph status bits
70 kClipFrame = BIT(10), ///< clip to the frame boundary
71 kResetHisto = BIT(17), ///< fHistogram must be reset in GetHistogram
72 kNotEditable = BIT(18), ///< bit set if graph is non editable
73 kIsSortedX = BIT(19), ///< graph is sorted in X points
74 kIsHighlight = BIT(20) ///< bit set if graph is highlight
75 };
76
77 TGraph();
78 TGraph(Int_t n);
79 TGraph(Int_t n, const Int_t *x, const Int_t *y);
80 TGraph(Int_t n, const Float_t *x, const Float_t *y);
81 TGraph(Int_t n, const Double_t *x, const Double_t *y);
82 TGraph(const TGraph &gr);
83 TGraph& operator=(const TGraph&);
84 TGraph(const TVectorF &vx, const TVectorF &vy);
85 TGraph(const TVectorD &vx, const TVectorD &vy);
86 TGraph(const TH1 *h);
87 TGraph(const TF1 *f, Option_t *option="");
88 TGraph(const char *filename, const char *format="%lg %lg", Option_t *option="");
89 virtual ~TGraph();
90
91 virtual void AddPoint(Double_t x, Double_t y) { SetPoint(fNpoints, x, y); } ///< Append a new point to the graph.
92 virtual void Apply(TF1 *f);
93 virtual void Browse(TBrowser *b);
94 virtual Double_t Chisquare(TF1 *f1, Option_t *option="") const;
95 static Bool_t CompareArg(const TGraph* gr, Int_t left, Int_t right);
96 static Bool_t CompareX(const TGraph* gr, Int_t left, Int_t right);
97 static Bool_t CompareY(const TGraph* gr, Int_t left, Int_t right);
98 static Bool_t CompareRadius(const TGraph* gr, Int_t left, Int_t right);
99 virtual void ComputeRange(Double_t &xmin, Double_t &ymin, Double_t &xmax, Double_t &ymax) const;
100 virtual Int_t DistancetoPrimitive(Int_t px, Int_t py);
101 virtual void Draw(Option_t *chopt="");
102 virtual void DrawGraph(Int_t n, const Int_t *x, const Int_t *y, Option_t *option="");
103 virtual void DrawGraph(Int_t n, const Float_t *x, const Float_t *y, Option_t *option="");
104 virtual void DrawGraph(Int_t n, const Double_t *x=nullptr, const Double_t *y=nullptr, Option_t *option="");
105 virtual void DrawPanel(); // *MENU*
106 virtual Double_t Eval(Double_t x, TSpline *spline=nullptr, Option_t *option="") const;
107 virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py);
108 virtual void Expand(Int_t newsize);
109 virtual void Expand(Int_t newsize, Int_t step);
110 virtual TObject *FindObject(const char *name) const;
111 virtual TObject *FindObject(const TObject *obj) const;
112 virtual TFitResultPtr Fit(const char *formula ,Option_t *option="" ,Option_t *goption="", Axis_t xmin=0, Axis_t xmax=0); // *MENU*
113 virtual TFitResultPtr Fit(TF1 *f1 ,Option_t *option="" ,Option_t *goption="", Axis_t xmin=0, Axis_t xmax=0);
114 virtual void FitPanel(); // *MENU*
115 Bool_t GetEditable() const;
116 TF1 *GetFunction(const char *name) const;
117 TH1F *GetHistogram() const;
119 virtual Double_t GetCorrelationFactor() const;
120 virtual Double_t GetCovariance() const;
121 virtual Double_t GetMean(Int_t axis=1) const;
122 virtual Double_t GetRMS(Int_t axis=1) const;
123 Int_t GetMaxSize() const {return fMaxSize;}
124 Int_t GetN() const {return fNpoints;}
125 virtual Double_t GetErrorX(Int_t bin) const;
126 virtual Double_t GetErrorY(Int_t bin) const;
127 virtual Double_t GetErrorXhigh(Int_t bin) const;
128 virtual Double_t GetErrorXlow(Int_t bin) const;
129 virtual Double_t GetErrorYhigh(Int_t bin) const;
130 virtual Double_t GetErrorYlow(Int_t bin) const;
131 Double_t *GetX() const {return fX;}
132 Double_t *GetY() const {return fY;}
133 virtual Double_t *GetEX() const {return nullptr;}
134 virtual Double_t *GetEY() const {return nullptr;}
135 virtual Double_t *GetEXhigh() const {return nullptr;}
136 virtual Double_t *GetEXlow() const {return nullptr;}
137 virtual Double_t *GetEYhigh() const {return nullptr;}
138 virtual Double_t *GetEYlow() const {return nullptr;}
139 virtual Double_t *GetEXlowd() const {return nullptr;}
140 virtual Double_t *GetEXhighd() const {return nullptr;}
141 virtual Double_t *GetEYlowd() const {return nullptr;}
142 virtual Double_t *GetEYhighd() const {return nullptr;}
143 Double_t GetMaximum() const {return fMaximum;}
144 Double_t GetMinimum() const {return fMinimum;}
145 TAxis *GetXaxis() const ;
146 TAxis *GetYaxis() const ;
147 virtual char *GetObjectInfo(Int_t px, Int_t py) const;
148 virtual Int_t GetPoint(Int_t i, Double_t &x, Double_t &y) const;
149 virtual Double_t GetPointX(Int_t i) const;
150 virtual Double_t GetPointY(Int_t i) const;
151
152 virtual void InitExpo(Double_t xmin=0, Double_t xmax=0);
153 virtual void InitGaus(Double_t xmin=0, Double_t xmax=0);
154 virtual void InitPolynom(Double_t xmin=0, Double_t xmax=0);
155 virtual Int_t InsertPoint(); // *MENU*
156 virtual void InsertPointBefore(Int_t ipoint, Double_t x, Double_t y);
157 virtual Double_t Integral(Int_t first=0, Int_t last=-1) const;
158 virtual Bool_t IsEditable() const {return !TestBit(kNotEditable);}
159 virtual Bool_t IsHighlight() const { return TestBit(kIsHighlight); }
160 virtual Int_t IsInside(Double_t x, Double_t y) const;
161 virtual void LeastSquareFit(Int_t m, Double_t *a, Double_t xmin=0, Double_t xmax=0);
162 virtual void LeastSquareLinearFit(Int_t n, Double_t &a0, Double_t &a1, Int_t &ifail, Double_t xmin=0, Double_t xmax=0);
163 virtual Int_t Merge(TCollection* list);
164 virtual void MovePoints(Double_t dx, Double_t dy, Bool_t logx = kFALSE, Bool_t logy = kFALSE);
165 virtual void Paint(Option_t *chopt="");
166 void PaintGraph(Int_t npoints, const Double_t *x, const Double_t *y, Option_t *chopt);
167 void PaintGrapHist(Int_t npoints, const Double_t *x, const Double_t *y, Option_t *chopt);
168 virtual void PaintStats(TF1 *fit);
169 virtual void Print(Option_t *chopt="") const;
170 virtual void RecursiveRemove(TObject *obj);
171 virtual Int_t RemovePoint(); // *MENU*
172 virtual Int_t RemovePoint(Int_t ipoint);
173 virtual void SavePrimitive(std::ostream &out, Option_t *option = "");
174 virtual void SetEditable(Bool_t editable=kTRUE); // *TOGGLE* *GETTER=GetEditable
175 virtual void SetHighlight(Bool_t set = kTRUE); // *TOGGLE* *GETTER=IsHighlight
176 virtual void SetHistogram(TH1F *h) {fHistogram = h;}
177 virtual void SetMaximum(Double_t maximum=-1111); // *MENU*
178 virtual void SetMinimum(Double_t minimum=-1111); // *MENU*
179 virtual void Set(Int_t n);
180 virtual void SetPoint(Int_t i, Double_t x, Double_t y);
181 virtual void SetPointX(Int_t i, Double_t x);
182 virtual void SetPointY(Int_t i, Double_t y);
183 virtual void SetName(const char *name=""); // *MENU*
184 virtual void SetNameTitle(const char *name="", const char *title="");
185 virtual void SetTitle(const char *title=""); // *MENU*
186 virtual void Sort(Bool_t (*greater)(const TGraph*, Int_t, Int_t)=&TGraph::CompareX,
187 Bool_t ascending=kTRUE, Int_t low=0, Int_t high=-1111);
188 virtual void UseCurrentStyle();
189 void Zero(Int_t &k,Double_t AZ,Double_t BZ,Double_t E2,Double_t &X,Double_t &Y,Int_t maxiterations);
190
191 ClassDef(TGraph,4) //Graph graphics class
192};
193
194#endif
#define b(i)
Definition RSha256.hxx:100
#define f(i)
Definition RSha256.hxx:104
#define g(i)
Definition RSha256.hxx:105
#define a(i)
Definition RSha256.hxx:99
#define h(i)
Definition RSha256.hxx:106
int Int_t
Definition RtypesCore.h:45
const Bool_t kFALSE
Definition RtypesCore.h:92
bool Bool_t
Definition RtypesCore.h:63
double Axis_t
Definition RtypesCore.h:76
double Double_t
Definition RtypesCore.h:59
float Float_t
Definition RtypesCore.h:57
const Bool_t kTRUE
Definition RtypesCore.h:91
const char Option_t
Definition RtypesCore.h:66
#define ClassDef(name, id)
Definition Rtypes.h:325
#define BIT(n)
Definition Rtypes.h:85
char name[80]
Definition TGX11.cxx:110
float xmin
float ymin
float xmax
float ymax
Fill Area Attributes class.
Definition TAttFill.h:19
Line Attributes class.
Definition TAttLine.h:18
Marker Attributes class.
Definition TAttMarker.h:19
Class to manage histogram axis.
Definition TAxis.h:30
Using a TBrowser one can browse all ROOT objects.
Definition TBrowser.h:37
Collection abstract base class.
Definition TCollection.h:63
1-Dim function class
Definition TF1.h:213
Provides an indirection to the TFitResult class and with a semantics identical to a TFitResult pointe...
A TGraph is an object made of two arrays X and Y with npoints each.
Definition TGraph.h:41
virtual Double_t GetPointX(Int_t i) const
Get x value for point i.
Definition TGraph.cxx:1618
virtual void AddPoint(Double_t x, Double_t y)
Append a new point to the graph.
Definition TGraph.h:91
virtual Double_t Integral(Int_t first=0, Int_t last=-1) const
Integrate the TGraph data within a given (index) range.
Definition TGraph.cxx:1875
Int_t fNpoints
Number of points <= fMaxSize.
Definition TGraph.h:46
virtual Int_t IsInside(Double_t x, Double_t y) const
Return 1 if the point (x,y) is inside the polygon defined by the graph vertices 0 otherwise.
Definition TGraph.cxx:1908
virtual void LeastSquareFit(Int_t m, Double_t *a, Double_t xmin=0, Double_t xmax=0)
Least squares polynomial fitting without weights.
Definition TGraph.cxx:1923
virtual Double_t Chisquare(TF1 *f1, Option_t *option="") const
Return the chisquare of this graph with respect to f1.
Definition TGraph.cxx:615
virtual void SetPoint(Int_t i, Double_t x, Double_t y)
Set x and y values for point number i.
Definition TGraph.cxx:2284
Double_t * GetY() const
Definition TGraph.h:132
virtual Int_t Merge(TCollection *list)
Adds all graphs from the collection to this graph.
Definition TGraph.cxx:2562
Int_t fMaxSize
!Current dimension of arrays fX and fY
Definition TGraph.h:45
Double_t ** ShrinkAndCopy(Int_t size, Int_t iend)
if size*2 <= fMaxSize allocate new arrays of size points, copy points [0,oend).
Definition TGraph.cxx:2371
virtual Double_t GetRMS(Int_t axis=1) const
Return RMS of X (axis=1) or Y (axis=2)
Definition TGraph.cxx:1396
virtual Double_t * GetEXhighd() const
Definition TGraph.h:140
virtual Bool_t IsEditable() const
Definition TGraph.h:158
TH1F * fHistogram
Pointer to histogram used for drawing axis.
Definition TGraph.h:50
EStatusBits
Definition TGraph.h:69
@ kNotEditable
bit set if graph is non editable
Definition TGraph.h:72
@ kIsHighlight
bit set if graph is highlight
Definition TGraph.h:74
@ kIsSortedX
graph is sorted in X points
Definition TGraph.h:73
@ kClipFrame
clip to the frame boundary
Definition TGraph.h:70
@ kResetHisto
fHistogram must be reset in GetHistogram
Definition TGraph.h:71
virtual Double_t GetErrorXlow(Int_t bin) const
This function is called by GraphFitChisquare.
Definition TGraph.cxx:1448
virtual void SetName(const char *name="")
Set graph name.
Definition TGraph.cxx:2323
virtual void MovePoints(Double_t dx, Double_t dy, Bool_t logx=kFALSE, Bool_t logy=kFALSE)
Move all graph points on specified values dx,dy If log argument specified, calculation done in logari...
Definition TGraph.cxx:2595
virtual Double_t GetErrorYlow(Int_t bin) const
This function is called by GraphFitChisquare.
Definition TGraph.cxx:1468
virtual void CopyAndRelease(Double_t **newarrays, Int_t ibegin, Int_t iend, Int_t obegin)
Copy points from fX and fY to arrays[0] and arrays[1] or to fX and fY if arrays == 0 and ibegin !...
Definition TGraph.cxx:700
Double_t GetMinimum() const
Definition TGraph.h:144
virtual void SetNameTitle(const char *name="", const char *title="")
Set graph name and title.
Definition TGraph.cxx:2359
virtual Double_t * GetEYlow() const
Definition TGraph.h:138
virtual void SetMaximum(Double_t maximum=-1111)
Set the maximum of the graph.
Definition TGraph.cxx:2266
virtual Double_t * GetEX() const
Definition TGraph.h:133
static Bool_t CompareY(const TGraph *gr, Int_t left, Int_t right)
Return kTRUE if fY[left] > fY[right]. Can be used by Sort.
Definition TGraph.cxx:651
virtual TObject * FindObject(const char *name) const
Search object named name in the list of functions.
Definition TGraph.cxx:1046
static Bool_t CompareRadius(const TGraph *gr, Int_t left, Int_t right)
Return kTRUE if point number "left"'s distance to origin is bigger than that of point number "right".
Definition TGraph.cxx:660
virtual Double_t GetErrorYhigh(Int_t bin) const
This function is called by GraphFitChisquare.
Definition TGraph.cxx:1458
static Bool_t CompareX(const TGraph *gr, Int_t left, Int_t right)
Return kTRUE if fX[left] > fX[right]. Can be used by Sort.
Definition TGraph.cxx:643
Double_t GetMaximum() const
Definition TGraph.h:143
virtual char * GetObjectInfo(Int_t px, Int_t py) const
Implementation to get information on point of graph at cursor position Adapted from class TH1.
Definition TGraph.cxx:1661
Int_t GetN() const
Definition TGraph.h:124
TF1 * GetFunction(const char *name) const
Return pointer to function with name.
Definition TGraph.cxx:1479
virtual Double_t * GetEXlowd() const
Definition TGraph.h:139
virtual void LeastSquareLinearFit(Int_t n, Double_t &a0, Double_t &a1, Int_t &ifail, Double_t xmin=0, Double_t xmax=0)
Least square linear fit without weights.
Definition TGraph.cxx:1998
virtual void SetTitle(const char *title="")
Change (i.e.
Definition TGraph.cxx:2339
Double_t * fY
[fNpoints] array of Y points
Definition TGraph.h:48
Bool_t CtorAllocate()
In constructors set fNpoints than call this method.
Definition TGraph.cxx:743
virtual void DrawGraph(Int_t n, const Int_t *x, const Int_t *y, Option_t *option="")
Draw this graph with new attributes.
Definition TGraph.cxx:823
virtual TFitResultPtr Fit(const char *formula, Option_t *option="", Option_t *goption="", Axis_t xmin=0, Axis_t xmax=0)
Fit this graph with function with name fname.
Definition TGraph.cxx:1073
virtual void Sort(Bool_t(*greater)(const TGraph *, Int_t, Int_t)=&TGraph::CompareX, Bool_t ascending=kTRUE, Int_t low=0, Int_t high=-1111)
Sorts the points of this TGraph using in-place quicksort (see e.g.
Definition TGraph.cxx:2404
static Bool_t CompareArg(const TGraph *gr, Int_t left, Int_t right)
Return kTRUE if point number "left"'s argument (angle with respect to positive x-axis) is bigger than...
Definition TGraph.cxx:632
virtual void ComputeRange(Double_t &xmin, Double_t &ymin, Double_t &xmax, Double_t &ymax) const
Compute the x/y range of the points in this graph.
Definition TGraph.cxx:669
Double_t ** AllocateArrays(Int_t Narrays, Int_t arraySize)
Allocate arrays.
Definition TGraph.cxx:553
TList * fFunctions
Pointer to list of functions (fits and user)
Definition TGraph.h:49
virtual Double_t GetCovariance() const
Return covariance of vectors x,y.
Definition TGraph.cxx:1365
virtual Double_t * GetEYlowd() const
Definition TGraph.h:141
static void SwapValues(Double_t *arr, Int_t pos1, Int_t pos2)
Swap values.
Definition TGraph.cxx:2515
void Zero(Int_t &k, Double_t AZ, Double_t BZ, Double_t E2, Double_t &X, Double_t &Y, Int_t maxiterations)
Find zero of a continuous function.
Definition TGraph.cxx:2621
virtual Double_t ** Allocate(Int_t newsize)
Allocate internal data structures for newsize points.
Definition TGraph.cxx:545
virtual void FitPanel()
Display a GUI panel with all graph fit options.
Definition TGraph.cxx:1331
virtual void Print(Option_t *chopt="") const
Print graph values.
Definition TGraph.cxx:2080
virtual Bool_t DoMerge(const TGraph *g)
protected function to perform the merge operation of a graph
Definition TGraph.cxx:2580
virtual void InsertPointBefore(Int_t ipoint, Double_t x, Double_t y)
Insert a new point with coordinates (x,y) before the point number ipoint.
Definition TGraph.cxx:1816
TList * GetListOfFunctions() const
Definition TGraph.h:118
virtual void SavePrimitive(std::ostream &out, Option_t *option="")
Save primitive as a C++ statement(s) on output stream out.
Definition TGraph.cxx:2139
Double_t * GetX() const
Definition TGraph.h:131
virtual Double_t Eval(Double_t x, TSpline *spline=nullptr, Option_t *option="") const
Interpolate points in this graph at x using a TSpline.
Definition TGraph.cxx:887
Int_t GetMaxSize() const
Definition TGraph.h:123
virtual void InitExpo(Double_t xmin=0, Double_t xmax=0)
Compute Initial values of parameters for an exponential.
Definition TGraph.cxx:1730
virtual Int_t RemovePoint()
Delete point close to the mouse position.
Definition TGraph.cxx:2102
virtual void InitGaus(Double_t xmin=0, Double_t xmax=0)
Compute Initial values of parameters for a gaussian.
Definition TGraph.cxx:1692
virtual Bool_t IsHighlight() const
Definition TGraph.h:159
virtual void Paint(Option_t *chopt="")
Draw this graph with its current attributes.
Definition TGraph.cxx:2044
virtual void Apply(TF1 *f)
Apply function f to all the data points f may be a 1-D function TF1 or 2-d function TF2 The Y values ...
Definition TGraph.cxx:576
virtual void SetHighlight(Bool_t set=kTRUE)
Set highlight (enable/disble) mode for the graph by default highlight mode is disable.
Definition TGraph.cxx:2253
virtual void SwapPoints(Int_t pos1, Int_t pos2)
Swap points.
Definition TGraph.cxx:2506
virtual Double_t * GetEYhighd() const
Definition TGraph.h:142
virtual void RecursiveRemove(TObject *obj)
Recursively remove object from the list of functions.
Definition TGraph.cxx:2090
TAxis * GetXaxis() const
Get x axis of the graph.
Definition TGraph.cxx:1640
Bool_t GetEditable() const
Return kTRUE if kNotEditable bit is not set, kFALSE otherwise.
Definition TGraph.cxx:2234
virtual Double_t * GetEXhigh() const
Definition TGraph.h:135
virtual Double_t GetCorrelationFactor() const
Return graph correlation factor.
Definition TGraph.cxx:1353
virtual void FillZero(Int_t begin, Int_t end, Bool_t from_ctor=kTRUE)
Set zero values for point arrays in the range [begin, end) Should be redefined in descendant classes.
Definition TGraph.cxx:1037
virtual Double_t * GetEYhigh() const
Definition TGraph.h:137
Double_t ** ExpandAndCopy(Int_t size, Int_t iend)
if size > fMaxSize allocate new arrays of 2*size points and copy iend first points.
Definition TGraph.cxx:1023
virtual void Expand(Int_t newsize)
If array sizes <= newsize, expand storage to 2*newsize.
Definition TGraph.cxx:999
virtual void UseCurrentStyle()
Set current style settings in this graph This function is called when either TCanvas::UseCurrentStyle...
Definition TGraph.cxx:2527
virtual Double_t GetMean(Int_t axis=1) const
Return mean value of X (axis=1) or Y (axis=2)
Definition TGraph.cxx:1381
Double_t * fX
[fNpoints] array of X points
Definition TGraph.h:47
virtual void PaintStats(TF1 *fit)
Draw the stats.
Definition TGraph.cxx:2071
TAxis * GetYaxis() const
Get y axis of the graph.
Definition TGraph.cxx:1650
virtual Int_t DistancetoPrimitive(Int_t px, Int_t py)
Compute distance from point px,py to a graph.
Definition TGraph.cxx:813
TH1F * GetHistogram() const
Returns a pointer to the histogram used to draw the axis Takes into account the two following cases.
Definition TGraph.cxx:1491
virtual Double_t GetErrorY(Int_t bin) const
This function is called by GraphFitChisquare.
Definition TGraph.cxx:1428
virtual Double_t * GetEY() const
Definition TGraph.h:134
virtual Double_t GetPointY(Int_t i) const
Get y value for point i.
Definition TGraph.cxx:1629
virtual void SetHistogram(TH1F *h)
Definition TGraph.h:176
Double_t fMinimum
Minimum value for plotting along y.
Definition TGraph.h:51
void PaintGraph(Int_t npoints, const Double_t *x, const Double_t *y, Option_t *chopt)
Draw the (x,y) as a graph.
Definition TGraph.cxx:2053
virtual Int_t InsertPoint()
Insert a new point at the mouse position.
Definition TGraph.cxx:1771
virtual Double_t * GetEXlow() const
Definition TGraph.h:136
virtual void SetPointY(Int_t i, Double_t y)
Set y value for point i.
Definition TGraph.cxx:2316
virtual void Browse(TBrowser *b)
Browse.
Definition TGraph.cxx:589
virtual void DrawPanel()
Display a panel with all graph drawing options.
Definition TGraph.cxx:866
void PaintGrapHist(Int_t npoints, const Double_t *x, const Double_t *y, Option_t *chopt)
Draw the (x,y) as a histogram.
Definition TGraph.cxx:2062
virtual ~TGraph()
Graph default destructor.
Definition TGraph.cxx:521
virtual void SetPointX(Int_t i, Double_t x)
Set x value for point i.
Definition TGraph.cxx:2308
virtual void Set(Int_t n)
Set number of points in the graph Existing coordinates are preserved New coordinates above fNpoints a...
Definition TGraph.cxx:2219
virtual Int_t GetPoint(Int_t i, Double_t &x, Double_t &y) const
Get x and y values for point number i.
Definition TGraph.cxx:1607
virtual void SetEditable(Bool_t editable=kTRUE)
if editable=kFALSE, the graph cannot be modified with the mouse by default a TGraph is editable
Definition TGraph.cxx:2243
virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py)
Execute action corresponding to one event.
Definition TGraph.cxx:990
virtual void SetMinimum(Double_t minimum=-1111)
Set the minimum of the graph.
Definition TGraph.cxx:2275
TGraph()
Graph default constructor.
Definition TGraph.cxx:87
virtual Bool_t CopyPoints(Double_t **newarrays, Int_t ibegin, Int_t iend, Int_t obegin)
Copy points from fX and fY to arrays[0] and arrays[1] or to fX and fY if arrays == 0 and ibegin !...
Definition TGraph.cxx:717
Double_t fMaximum
Maximum value for plotting along y.
Definition TGraph.h:52
virtual Double_t GetErrorXhigh(Int_t bin) const
This function is called by GraphFitChisquare.
Definition TGraph.cxx:1438
TGraph & operator=(const TGraph &)
Equal operator for this graph.
Definition TGraph.cxx:192
virtual void InitPolynom(Double_t xmin=0, Double_t xmax=0)
Compute Initial values of parameters for a polynom.
Definition TGraph.cxx:1751
virtual Double_t GetErrorX(Int_t bin) const
This function is called by GraphFitChisquare.
Definition TGraph.cxx:1419
1-D histogram with a float per channel (see TH1 documentation)}
Definition TH1.h:575
TH1 is the base class of all histogram classes in ROOT.
Definition TH1.h:58
A doubly linked list.
Definition TList.h:44
The TNamed class is the base class for all named ROOT classes.
Definition TNamed.h:29
Mother of all ROOT objects.
Definition TObject.h:37
R__ALWAYS_INLINE Bool_t TestBit(UInt_t f) const
Definition TObject.h:187
Base class for spline implementation containing the Draw/Paint methods.
Definition TSpline.h:31
TVectorT.
Definition TVectorT.h:27
Double_t y[n]
Definition legend1.C:17
Double_t x[n]
Definition legend1.C:17
const Int_t n
Definition legend1.C:16
TGraphErrors * gr
Definition legend1.C:25
TF1 * f1
Definition legend1.C:11
Definition first.py:1
th1 Draw()
auto * m
Definition textangle.C:8