A TMultiGraph is a collection of TGraph (or derived) objects.
A TMultiGraph allows to manipulate a set of graphs as a single entity. In particular, when drawn, the X and Y axis ranges are automatically computed such as all the graphs will be visible.
TMultiGraph::Add
should be used to add a new graph to the list.
The TMultiGraph owns the objects in the list.
The number of graphs in a multigraph can be retrieve with:
The drawing options are the same as for TGraph. Like for TGraph, the painting is performed thanks to the TGraphPainter class. All details about the various painting options are given in this class.
Example:
The drawing option for each TGraph may be specified as an optional second argument of the Add
function.
If a draw option is specified, it will be used to draw the graph, otherwise the graph will be drawn with the option specified in TMultiGraph::Draw
The global title and the axis titles can be modified the following way:
A special option 3D
allows to draw the graphs in a 3D space. See the following example:
The method TPad::BuildLegend is able to extract the graphs inside a multigraph. The following example demonstrate this.
Automatic coloring according to the current palette is available as shown in the following example:
When a TMultiGraph is drawn, the X-axis is drawn with increasing values from left to right and the Y-axis from bottom to top. The two options RX and RY allow to change this order. The option RX allows to draw the X-axis with increasing values from right to left and the RY option allows to draw the Y-axis with increasing values from top to bottom. The following example illustrate how to use these options.
The following example shows how to fit a TMultiGraph.
When the graphs in a TMultiGraph are fitted, the fit parameters boxes overlap. The following example shows how to make them all visible.
The axis limits can be changed the like for TGraph. The same methods apply on the multigraph. Note the two differents ways to change limits on X and Y axis.
Definition at line 34 of file TMultiGraph.h.
Public Member Functions | |
TMultiGraph () | |
TMultiGraph default constructor. | |
TMultiGraph (const char *name, const char *title) | |
Constructor with name and title. | |
~TMultiGraph () override | |
TMultiGraph destructor. | |
virtual void | Add (TGraph *graph, Option_t *chopt="") |
Add a new graph to the list of graphs. | |
virtual void | Add (TMultiGraph *multigraph, Option_t *chopt="") |
Add all the graphs in "multigraph" to the list of graphs. | |
TIter | begin () const |
Get iterator over internal graphs list. | |
void | Browse (TBrowser *b) override |
Browse multigraph. | |
Int_t | DistancetoPrimitive (Int_t px, Int_t py) override |
Compute distance from point px,py to each graph. | |
void | Draw (Option_t *chopt="") override |
Draw this multigraph with its current attributes. | |
TIter | end () const |
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. | |
virtual TFitResultPtr | Fit (TF1 *f1, Option_t *option="", Option_t *goption="", Axis_t rxmin=0, Axis_t rxmax=0) |
Fit this multigraph with function f1. | |
virtual void | FitPanel () |
Display a panel with all histogram fit options. | |
TF1 * | GetFunction (const char *name) const |
Return pointer to function with name. | |
virtual Option_t * | GetGraphDrawOption (const TGraph *gr) const |
Return the draw option for the TGraph gr in this TMultiGraph. | |
TH1F * | GetHistogram () |
Returns a pointer to the histogram used to draw the axis. | |
TList * | GetListOfFunctions () |
Return pointer to list of functions. | |
const TList * | GetListOfFunctions () const |
TList * | GetListOfGraphs () const |
TAxis * | GetXaxis () |
Get x axis of the graph. | |
TAxis * | GetYaxis () |
Get y axis of the graph. | |
virtual void | InitExpo (Double_t xmin, Double_t xmax) |
Compute Initial values of parameters for an exponential. | |
virtual void | InitGaus (Double_t xmin, Double_t xmax) |
Compute Initial values of parameters for a gaussian. | |
virtual void | InitPolynom (Double_t xmin, Double_t xmax) |
Compute Initial values of parameters for a polynom. | |
TClass * | IsA () const override |
virtual Int_t | IsInside (Double_t x, Double_t y) const |
Return 1 if the point (x,y) is inside one of the graphs 0 otherwise. | |
virtual void | LeastSquareFit (Int_t m, Double_t *a, Double_t xmin, Double_t xmax) |
Least squares lpolynomial fitting without weights. | |
virtual void | LeastSquareLinearFit (Int_t ndata, Double_t &a0, Double_t &a1, Int_t &ifail, Double_t xmin, Double_t xmax) |
Least square linear fit without weights. | |
void | Paint (Option_t *chopt="") override |
Paint all the graphs of this multigraph. | |
void | PaintPads (Option_t *chopt="") |
Divides the active pad and draws all Graphs in the Multigraph separately. | |
void | PaintPolyLine3D (Option_t *chopt="") |
Paint all the graphs of this multigraph as 3D lines. | |
void | PaintReverse (Option_t *chopt="") |
Paint all the graphs of this multigraph reverting values along X and/or Y axis. | |
void | Print (Option_t *chopt="") const override |
Print the list of graphs. | |
void | RecursiveRemove (TObject *obj) override |
Recursively remove this object from a list. | |
void | SavePrimitive (std::ostream &out, Option_t *option="") override |
Save primitive as a C++ statement(s) on output stream out. | |
virtual void | SetMaximum (Double_t maximum=-1111) |
Set multigraph maximum. | |
virtual void | SetMinimum (Double_t minimum=-1111) |
Set multigraph minimum. | |
void | Streamer (TBuffer &) override |
Stream an object of class TObject. | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
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TNamed () | |
TNamed (const char *name, const char *title) | |
TNamed (const TNamed &named) | |
TNamed copy ctor. | |
TNamed (const TString &name, const TString &title) | |
virtual | ~TNamed () |
TNamed destructor. | |
void | Clear (Option_t *option="") override |
Set name and title to empty strings (""). | |
TObject * | Clone (const char *newname="") const override |
Make a clone of an object using the Streamer facility. | |
Int_t | Compare (const TObject *obj) const override |
Compare two TNamed objects. | |
void | Copy (TObject &named) const override |
Copy this to obj. | |
virtual void | FillBuffer (char *&buffer) |
Encode TNamed into output buffer. | |
const char * | GetName () const override |
Returns name of object. | |
const char * | GetTitle () const override |
Returns title of object. | |
ULong_t | Hash () const override |
Return hash value for this object. | |
TClass * | IsA () const override |
Bool_t | IsSortable () const override |
void | ls (Option_t *option="") const override |
List TNamed name and title. | |
TNamed & | operator= (const TNamed &rhs) |
TNamed assignment operator. | |
void | Print (Option_t *option="") const override |
Print TNamed name and title. | |
virtual void | SetName (const char *name) |
Set the name of the TNamed. | |
virtual void | SetNameTitle (const char *name, const char *title) |
Set all the TNamed parameters (name and title). | |
virtual void | SetTitle (const char *title="") |
Set the title of the TNamed. | |
virtual Int_t | Sizeof () const |
Return size of the TNamed part of the TObject. | |
void | Streamer (TBuffer &) override |
Stream an object of class TObject. | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
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TObject () | |
TObject constructor. | |
TObject (const TObject &object) | |
TObject copy ctor. | |
virtual | ~TObject () |
TObject destructor. | |
void | AbstractMethod (const char *method) const |
Use this method to implement an "abstract" method that you don't want to leave purely abstract. | |
virtual void | AppendPad (Option_t *option="") |
Append graphics object to current pad. | |
ULong_t | CheckedHash () |
Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. | |
virtual const char * | ClassName () const |
Returns name of class to which the object belongs. | |
virtual void | Delete (Option_t *option="") |
Delete this object. | |
virtual void | DrawClass () const |
Draw class inheritance tree of the class to which this object belongs. | |
virtual TObject * | DrawClone (Option_t *option="") const |
Draw a clone of this object in the current selected pad with: gROOT->SetSelectedPad(c1) . | |
virtual void | Dump () const |
Dump contents of object on stdout. | |
virtual void | Error (const char *method, const char *msgfmt,...) const |
Issue error message. | |
virtual void | Execute (const char *method, const char *params, Int_t *error=nullptr) |
Execute method on this object with the given parameter string, e.g. | |
virtual void | Execute (TMethod *method, TObjArray *params, Int_t *error=nullptr) |
Execute method on this object with parameters stored in the TObjArray. | |
virtual void | ExecuteEvent (Int_t event, Int_t px, Int_t py) |
Execute action corresponding to an event at (px,py). | |
virtual void | Fatal (const char *method, const char *msgfmt,...) const |
Issue fatal error message. | |
virtual TObject * | FindObject (const char *name) const |
Must be redefined in derived classes. | |
virtual TObject * | FindObject (const TObject *obj) const |
Must be redefined in derived classes. | |
virtual Option_t * | GetDrawOption () const |
Get option used by the graphics system to draw this object. | |
virtual const char * | GetIconName () const |
Returns mime type name of object. | |
virtual char * | GetObjectInfo (Int_t px, Int_t py) const |
Returns string containing info about the object at position (px,py). | |
virtual Option_t * | GetOption () const |
virtual UInt_t | GetUniqueID () const |
Return the unique object id. | |
virtual Bool_t | HandleTimer (TTimer *timer) |
Execute action in response of a timer timing out. | |
Bool_t | HasInconsistentHash () const |
Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. | |
virtual void | Info (const char *method, const char *msgfmt,...) const |
Issue info message. | |
virtual Bool_t | InheritsFrom (const char *classname) const |
Returns kTRUE if object inherits from class "classname". | |
virtual Bool_t | InheritsFrom (const TClass *cl) const |
Returns kTRUE if object inherits from TClass cl. | |
virtual void | Inspect () const |
Dump contents of this object in a graphics canvas. | |
void | InvertBit (UInt_t f) |
Bool_t | IsDestructed () const |
IsDestructed. | |
virtual Bool_t | IsEqual (const TObject *obj) const |
Default equal comparison (objects are equal if they have the same address in memory). | |
virtual Bool_t | IsFolder () const |
Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). | |
R__ALWAYS_INLINE Bool_t | IsOnHeap () const |
R__ALWAYS_INLINE Bool_t | IsZombie () const |
void | MayNotUse (const char *method) const |
Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). | |
virtual Bool_t | Notify () |
This method must be overridden to handle object notification (the base implementation is no-op). | |
void | Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const |
Use this method to declare a method obsolete. | |
void | operator delete (void *ptr) |
Operator delete. | |
void | operator delete (void *ptr, void *vp) |
Only called by placement new when throwing an exception. | |
void | operator delete[] (void *ptr) |
Operator delete []. | |
void | operator delete[] (void *ptr, void *vp) |
Only called by placement new[] when throwing an exception. | |
void * | operator new (size_t sz) |
void * | operator new (size_t sz, void *vp) |
void * | operator new[] (size_t sz) |
void * | operator new[] (size_t sz, void *vp) |
TObject & | operator= (const TObject &rhs) |
TObject assignment operator. | |
virtual void | Pop () |
Pop on object drawn in a pad to the top of the display list. | |
virtual Int_t | Read (const char *name) |
Read contents of object with specified name from the current directory. | |
void | ResetBit (UInt_t f) |
virtual void | SaveAs (const char *filename="", Option_t *option="") const |
Save this object in the file specified by filename. | |
void | SetBit (UInt_t f) |
void | SetBit (UInt_t f, Bool_t set) |
Set or unset the user status bits as specified in f. | |
virtual void | SetDrawOption (Option_t *option="") |
Set drawing option for object. | |
virtual void | SetUniqueID (UInt_t uid) |
Set the unique object id. | |
void | StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b) |
virtual void | SysError (const char *method, const char *msgfmt,...) const |
Issue system error message. | |
R__ALWAYS_INLINE Bool_t | TestBit (UInt_t f) const |
Int_t | TestBits (UInt_t f) const |
virtual void | UseCurrentStyle () |
Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. | |
virtual void | Warning (const char *method, const char *msgfmt,...) const |
Issue warning message. | |
virtual Int_t | Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) |
Write this object to the current directory. | |
virtual Int_t | Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const |
Write this object to the current directory. | |
Static Public Member Functions | |
static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
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static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
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static TClass * | Class () |
static const char * | Class_Name () |
static constexpr Version_t | Class_Version () |
static const char * | DeclFileName () |
static Longptr_t | GetDtorOnly () |
Return destructor only flag. | |
static Bool_t | GetObjectStat () |
Get status of object stat flag. | |
static void | SetDtorOnly (void *obj) |
Set destructor only flag. | |
static void | SetObjectStat (Bool_t stat) |
Turn on/off tracking of objects in the TObjectTable. | |
Protected Member Functions | |
TMultiGraph (const TMultiGraph &)=delete | |
TMultiGraph & | operator= (const TMultiGraph &)=delete |
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virtual void | DoError (int level, const char *location, const char *fmt, va_list va) const |
Interface to ErrorHandler (protected). | |
void | MakeZombie () |
Protected Attributes | |
TList * | fFunctions {nullptr} |
Pointer to list of functions (fits and user) | |
TList * | fGraphs {nullptr} |
Pointer to list of TGraphs. | |
TH1F * | fHistogram {nullptr} |
Pointer to histogram used for drawing axis. | |
Double_t | fMaximum {-1111} |
Maximum value for plotting along y. | |
Double_t | fMinimum {-1111} |
Minimum value for plotting along y. | |
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TString | fName |
TString | fTitle |
Additional Inherited Members | |
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enum | { kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff } |
enum | { kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) } |
enum | EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) } |
enum | EStatusBits { kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) , kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 )) } |
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enum | { kOnlyPrepStep = (1ULL << ( 3 )) } |
#include <TMultiGraph.h>
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protecteddelete |
TMultiGraph::TMultiGraph | ( | ) |
TMultiGraph default constructor.
Definition at line 369 of file TMultiGraph.cxx.
TMultiGraph::TMultiGraph | ( | const char * | name, |
const char * | title | ||
) |
Constructor with name and title.
Definition at line 377 of file TMultiGraph.cxx.
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override |
TMultiGraph destructor.
Definition at line 385 of file TMultiGraph.cxx.
Add a new graph to the list of graphs.
Note that the graph is now owned by the TMultigraph. Deleting the TMultiGraph object will automatically delete the graphs. You should not delete the graphs when the TMultigraph is still active.
Definition at line 421 of file TMultiGraph.cxx.
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virtual |
Add all the graphs in "multigraph" to the list of graphs.
Definition at line 437 of file TMultiGraph.cxx.
TIter TMultiGraph::begin | ( | ) | const |
Get iterator over internal graphs list.
Definition at line 1654 of file TMultiGraph.cxx.
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overridevirtual |
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static |
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inlinestaticconstexpr |
Definition at line 85 of file TMultiGraph.h.
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inlinestatic |
Definition at line 85 of file TMultiGraph.h.
Compute distance from point px,py to each graph.
Reimplemented from TObject.
Definition at line 473 of file TMultiGraph.cxx.
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overridevirtual |
Draw this multigraph with its current attributes.
Options to draw a graph are described in TGraphPainter.
The drawing option for each TGraph may be specified as an optional second argument of the Add function. You can use GetGraphDrawOption to return this option.
If a draw option is specified, it will be used to draw the graph, otherwise the graph will be drawn with the option specified in TMultiGraph::Draw. Use GetDrawOption to return the option specified when drawing the TMultiGraph.
Reimplemented from TObject.
Definition at line 510 of file TMultiGraph.cxx.
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inline |
Definition at line 70 of file TMultiGraph.h.
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virtual |
Fit this graph with function with name fname.
interface to TF1::Fit(TF1 *f1...
Definition at line 528 of file TMultiGraph.cxx.
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virtual |
Fit this multigraph with function f1.
In this function all graphs of the multigraph are fitted simultaneously
f1 is an already predefined function created by TF1. Predefined functions such as gaus, expo and poln are automatically created by ROOT.
The list of fit options is given in parameter option
which may takes the following values:
When the fit is drawn (by default), the parameter goption may be used to specify a list of graphics options. See TGraph::Paint for a complete list of these options.
In order to use the Range option, one must first create a function with the expression to be fitted. For example, if your graph has a defined range between -4 and 4 and you want to fit a gaussian only in the interval 1 to 3, you can do:
Note that this function is called when calling TGraphErrors::Fit or TGraphAsymmErrors::Fit ot TGraphBentErrors::Fit see the discussion below on the errors calculation.
Parameters must be initialized before invoking the Fit function. The setting of the parameter initial values is automatic for the predefined functions : poln, expo, gaus, landau. One can however disable this automatic computation by specifying the option "B". You can specify boundary limits for some or all parameters via
if parmin>=parmax
, the parameter is fixed Note that you are not forced to fix the limits for all parameters. For example, if you fit a function with 6 parameters, you can do:
With this setup, parameters 0->3 can vary freely Parameter 4 has boundaries [-10,-4] with initial value -8 Parameter 5 is fixed to 100.
The fit range can be specified in two ways:
By default a chi2 fitting function is used for fitting the TGraphs's. The function is implemented in FitUtil::EvaluateChi2
. In case of TGraphErrors an effective chi2 is used (see TGraphErrors fit in TGraph::Fit) and is implemented in FitUtil::EvaluateChi2Effective
To specify a User defined fitting function, specify option "U" and call the following function:
where MyFittingFunction is of type:
The function returns a TFitResultPtr which can hold a pointer to a TFitResult object. By default the TFitResultPtr contains only the status of the fit and it converts automatically to an integer. If the option "S" is instead used, TFitResultPtr contains the TFitResult and behaves as a smart pointer to it. For example one can do:
The fit parameters, error and chi2 (but not covariance matrix) can be retrieved also from the fitted function.
One or more object (typically a TF1*) can be added to the list of functions (fFunctions) associated to each graph. When TGraph::Fit is invoked, the fitted function is added to this list. Given a graph gr, one can retrieve an associated function with:
If the graph is made persistent, the list of associated functions is also persistent. Given a pointer (see above) to an associated function myfunc, one can retrieve the function/fit parameters with calls such as:
You can change the statistics box to display the fit parameters with the TStyle::SetOptFit(mode) method. This mode has four digits. mode = pcev (default = 0111)
For example: gStyle->SetOptFit(1011);
prints the fit probability, parameter names/values, and errors. You can change the position of the statistics box with these lines (where g is a pointer to the TGraph):
Definition at line 701 of file TMultiGraph.cxx.
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virtual |
Display a panel with all histogram fit options.
See class TFitPanel for example
Definition at line 718 of file TMultiGraph.cxx.
TF1 * TMultiGraph::GetFunction | ( | const char * | name | ) | const |
Return pointer to function with name.
Functions such as TGraph::Fit store the fitted function in the list of functions of this graph.
Definition at line 1088 of file TMultiGraph.cxx.
Return the draw option for the TGraph gr
in this TMultiGraph.
The return option is the one specified when calling TMultiGraph::Add(gr,option).
Definition at line 742 of file TMultiGraph.cxx.
TH1F * TMultiGraph::GetHistogram | ( | ) |
Returns a pointer to the histogram used to draw the axis.
Takes into account following cases.
fHistogram
exists it is returnedfHistogram
doesn't exists and gPad
exists gPad
is updated. That may trigger the creation of fHistogram
. If fHistogram
still does not exit but hframe
does (if user called TPad::DrawFrame
) the pointer to hframe
histogram is returnedfHistogram
still doesn't exist, then it is created. Definition at line 1017 of file TMultiGraph.cxx.
TList * TMultiGraph::GetListOfFunctions | ( | ) |
Return pointer to list of functions.
If pointer is null create the list
Definition at line 1098 of file TMultiGraph.cxx.
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inline |
Definition at line 72 of file TMultiGraph.h.
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inline |
Definition at line 68 of file TMultiGraph.h.
TAxis * TMultiGraph::GetXaxis | ( | ) |
Get x axis of the graph.
This method returns a valid axis only after the TMultigraph has been drawn.
Definition at line 1109 of file TMultiGraph.cxx.
TAxis * TMultiGraph::GetYaxis | ( | ) |
Get y axis of the graph.
This method returns a valid axis only after the TMultigraph has been drawn.
Definition at line 1121 of file TMultiGraph.cxx.
Compute Initial values of parameters for an exponential.
Definition at line 802 of file TMultiGraph.cxx.
Compute Initial values of parameters for a gaussian.
Definition at line 757 of file TMultiGraph.cxx.
Compute Initial values of parameters for a polynom.
Definition at line 819 of file TMultiGraph.cxx.
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inlineoverridevirtual |
Reimplemented from TObject.
Definition at line 85 of file TMultiGraph.h.
Return 1 if the point (x,y) is inside one of the graphs 0 otherwise.
Definition at line 991 of file TMultiGraph.cxx.
Least squares lpolynomial fitting without weights.
based on CERNLIB routine LSQ: Translated to C++ by Rene Brun
Definition at line 843 of file TMultiGraph.cxx.
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virtual |
Least square linear fit without weights.
Fit a straight line (a0 + a1*x) to the data in this graph.
extracted from CERNLIB LLSQ: Translated to C++ by Rene Brun
Definition at line 938 of file TMultiGraph.cxx.
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protecteddelete |
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overridevirtual |
Paint all the graphs of this multigraph.
Reimplemented from TObject.
Definition at line 1132 of file TMultiGraph.cxx.
void TMultiGraph::PaintPads | ( | Option_t * | chopt = "" | ) |
Divides the active pad and draws all Graphs in the Multigraph separately.
Definition at line 1379 of file TMultiGraph.cxx.
void TMultiGraph::PaintPolyLine3D | ( | Option_t * | chopt = "" | ) |
Paint all the graphs of this multigraph as 3D lines.
Definition at line 1419 of file TMultiGraph.cxx.
void TMultiGraph::PaintReverse | ( | Option_t * | option = "" | ) |
Paint all the graphs of this multigraph reverting values along X and/or Y axis.
New graphs are created.
Definition at line 1520 of file TMultiGraph.cxx.
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overridevirtual |
Print the list of graphs.
Reimplemented from TObject.
Definition at line 1555 of file TMultiGraph.cxx.
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overridevirtual |
Recursively remove this object from a list.
Typically implemented by classes that can contain multiple references to a same object.
Reimplemented from TObject.
Definition at line 1571 of file TMultiGraph.cxx.
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overridevirtual |
Save primitive as a C++ statement(s) on output stream out.
Reimplemented from TObject.
Definition at line 1595 of file TMultiGraph.cxx.
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virtual |
Set multigraph maximum.
Definition at line 1634 of file TMultiGraph.cxx.
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virtual |
Set multigraph minimum.
Definition at line 1644 of file TMultiGraph.cxx.
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overridevirtual |
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inline |
Definition at line 85 of file TMultiGraph.h.
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protected |
Pointer to list of functions (fits and user)
Definition at line 38 of file TMultiGraph.h.
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protected |
Pointer to list of TGraphs.
Definition at line 37 of file TMultiGraph.h.
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protected |
Pointer to histogram used for drawing axis.
Definition at line 39 of file TMultiGraph.h.
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protected |
Maximum value for plotting along y.
Definition at line 40 of file TMultiGraph.h.
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protected |
Minimum value for plotting along y.
Definition at line 41 of file TMultiGraph.h.