Log of /trunk/graf/src/TMultiGraph.cxx
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Revision
11226 -
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Modified
Fri Mar 4 09:06:37 2005 UTC (9 years, 10 months ago) by
brun
File length: 36551 byte(s)
Diff to
previous 10847
From Anna Kreshuk:
- TLinearFitter class: Linear fitter is used to fit a set of data points with a linear
combination of specified functions (with or without weights). The "linear" in the name
stands for "linear in parameters", not variables. The main advantages,
compared to a general non-linear fitter, is that the linear fitter is considerably
faster and doesn't require setting the initial values of parameters.
The linear fitter can be used directly or through TH1::Fit and TGraph::Fit functions
When it's used directly, functions of more than 3 dimensions can be fitted.
- TFormula: a new data member fLinearParts and methods to process it are added. Now
one can create a function of the type that can be fit by the linear fitter.
Example: TFormula f("f", "x++sin(x)") is equivalent to
TFormula f("f","[0]*x + [1]*sin(x)"), but if a TH1::Fit or a TGraph::Fit is performed
with the 1st formula, it goes through the linear fitter, if it's performed with the
2nd formula, it goes through Minuit.
- TMultiGraph class: the Fit method is implemented, allowing to fit all the graphs
of a multigraph simultaneously
- TGraph, TGraphErrors, TGraphAsymmErrors, TGraphBentErrors - functions GetEXhigh(),
GetEXlow(), GetEYhigh(), GetEYlow() implemented to simplify the GraphFitChisquare()
function of the TFitter class
- TH1, TGraph, TGraph2D, TMultiGraph - changes in the Fit functions, allowing to use
the linear fitter. Fitting with "polN" functions redirected to use the linear fitter,
in cases where no options, except "range", are specified.
Revision
5552 -
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Modified
Wed Nov 6 21:16:43 2002 UTC (12 years, 2 months ago) by
brun
File length: 12257 byte(s)
Diff to
previous 4915
Implement function TMultiGraph::RecursiveRemove.
When a TGraph is deleted (eg via the context menu), its parent TMultigraph
is notified to remove the TGrapg from its list of graphs.
Destructor protected.
Revision
4915 -
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Modified
Mon Jul 15 15:03:38 2002 UTC (12 years, 6 months ago) by
brun
File length: 11633 byte(s)
Diff to
previous 4083
Changes in the functions DistancetoPrimitive. Return immediatly in case
one of the sub-objects has already selected an object.
This may be the case with TPaveStats.
Revision
4083 -
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Modified
Sun Feb 24 18:01:15 2002 UTC (12 years, 11 months ago) by
brun
File length: 11602 byte(s)
Diff to
previous 4037
Add protections in case GetHistogram, GetXaxis, GetYaxis are called
and the fHistogram pointer is null. This situation can happen
when drawing a graph with no option or invalid options.
Revision
4037 -
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Modified
Tue Feb 19 17:43:41 2002 UTC (12 years, 11 months ago) by
brun
File length: 11530 byte(s)
Diff to
previous 3799
Add an optional argument to TMultiGraph::Draw.
This optional argument can be used to specify the draw option for this graph.
If a draw option is not specified, the option specified in TMultiGraph::Draw
will be used instead.
Also, always use the option "0" when painting the frame histogram.
The option "0" suppresses the drawing of the horizonthal line at y=0.
Revision
3748 -
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Modified
Thu Jan 24 11:39:31 2002 UTC (13 years ago) by
rdm
File length: 9874 byte(s)
Diff to
previous 3742
rename IOSFwd.h and IOStream.h to Riosfwd.h and Riostream.h. The change
is necessary because on Windows which is case insensitive IOStream.h
hides the real iostream.h.
Revision
3742 -
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Modified
Wed Jan 23 17:52:52 2002 UTC (13 years ago) by
rdm
File length: 9874 byte(s)
Diff to
previous 3575
use IOSFwd.h in headers instead of <iosfwd> or many other ifdef'ed variant
and IOStream.h in the source instead of <iostream[.h]>, <fstream[.h]> and
<iomanip[.h]>.
Revision
3575 -
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Modified
Thu Jan 3 13:08:48 2002 UTC (13 years ago) by
brun
File length: 9881 byte(s)
Diff to
previous 1500
Modify the algorithm computing the minimum of all TGraphs and take into account
the case where the minimum is negative when an Unzoom happens on the y axis.
Revision
1205 -
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Modified
Wed Dec 13 15:13:57 2000 UTC (14 years, 1 month ago) by
brun
File length: 9488 byte(s)
Diff to
previous 754
W A R N I N G !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
==================================================================
A very long list of changes in this pre-release of version 3.00.
We have modified the signature of many functions (in particular TObject)
to introduce more constness in the system.
You must change your code if your class derives from TObject and uses
one of the modified functions such as ls, Print, Compare, Hash, etc.
The modified functions in TObject have the following signature:
virtual TObject *Clone() const;
virtual Int_t Compare(const TObject *obj) const;
virtual void Delete(Option_t *option=""); // *MENU*
virtual void DrawClass() const; // *MENU*
virtual void DrawClone(Option_t *option="") const; // *MENU*
virtual void Dump() const; // *MENU*
virtual TObject *FindObject(const TObject *obj) const;
virtual char *GetObjectInfo(Int_t px, Int_t py) const;
virtual ULong_t Hash() const;
virtual void Inspect() const; // *MENU*
virtual Bool_t IsEqual(const TObject *obj) const;
virtual void ls(Option_t *option="") const;
virtual void Print(Option_t *option="") const;
A similar operation has been done with classes such as TH1, TVirtualPad,
TTree, etc.
Revision
754 -
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Added
Thu Oct 12 13:27:23 2000 UTC (14 years, 3 months ago) by
brun
File length: 9465 byte(s)
Add new class TMultiGraph.
// A TMultiGraph is a collection of TGraph (or derived) objects
// Use TMultiGraph::Add to add a new graph to the list.
// The TMultiGraph owns the objects in the list.
// Drawing options are the same as for TGraph
// Example;
// TGraph *gr1 = new TGraph(...
// TGraphErrors *gr2 = new TGraphErrors(...
// TMultiGraph *mg = new TMultiGraph();
// mg->Add(gr1);
// mg->Add(gr2);
// mg->Draw("alp");
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