doc/v636/rf506__msgservice_8C.html

#include "RooRealVar.h"

#include "RooDataSet.h"

#include "RooGaussian.h"

#include "RooPolynomial.h"

#include "RooAddPdf.h"

#include "TCanvas.h"

#include "TAxis.h"

#include "RooPlot.h"

#include "RooMsgService.h"


using namespace RooFit;


void rf506_msgservice()

{

   // C r e a t e   p d f

   // --------------------


   // Construct gauss(x,m,s)

   RooRealVar x("x", "x", -10, 10);

   RooRealVar m("m", "m", 0, -10, 10);

   RooRealVar s("s", "s", 1, -10, 10);

   RooGaussian gauss("g", "g", x, m, s);


   // Construct poly(x,p0)

   RooRealVar p0("p0", "p0", 0.01, 0., 1.);

   RooPolynomial poly("p", "p", x, p0);


   // Construct model = f*gauss(x) + (1-f)*poly(x)

   RooRealVar f("f", "f", 0.5, 0., 1.);

   RooAddPdf model("model", "model", RooArgSet(gauss, poly), f);


   std::unique_ptr<RooDataSet> data{model.generate(x, 10)};


   // P r i n t   c o n f i g u r a t i o n   o f   m e s s a g e   s e r v i c e

   // ---------------------------------------------------------------------------


   // Print streams configuration

   RooMsgService::instance().Print();

   cout << endl;


   // A d d i n g   I n t e g r a t i o n   t o p i c   t o   e x i s t i n g   I N F O   s t r e a m

   // -----------------------------------------------------------------------------------------------


   // Print streams configuration

   RooMsgService::instance().Print();

   cout << endl;


   // Add Integration topic to existing INFO stream

   RooMsgService::instance().getStream(1).addTopic(Integration);


   // Construct integral over gauss to demonstrate new message stream

   std::unique_ptr<RooAbsReal> igauss{gauss.createIntegral(x)};

   igauss->Print();


   // Print streams configuration in verbose, which also shows inactive streams

   cout << endl;

   RooMsgService::instance().Print();

   cout << endl;


   // Remove stream

   RooMsgService::instance().getStream(1).removeTopic(Integration);


   // E x a m p l e s   o f   p d f   v a l u e   t r a c i n g   s t r e a m

   // -----------------------------------------------------------------------


   // Show DEBUG level message on function tracing, trace RooGaussian only

   RooMsgService::instance().addStream(DEBUG, Topic(Tracing), ClassName("RooGaussian"));


   // Perform a fit to generate some tracing messages

   model.fitTo(*data, Verbose(true));


   // Reset message service to default stream configuration

   RooMsgService::instance().reset();


   // Show DEBUG level message on function tracing on all objects, redirect output to file

   RooMsgService::instance().addStream(DEBUG, Topic(Tracing), OutputFile("rf506_debug.log"));


   // Perform a fit to generate some tracing messages

   model.fitTo(*data, Verbose(true));


   // Reset message service to default stream configuration

   RooMsgService::instance().reset();


   // E x a m p l e   o f   a n o t h e r   d e b u g g i n g   s t r e a m

   // ---------------------------------------------------------------------


   // Show DEBUG level messages on client/server link state management

   RooMsgService::instance().addStream(DEBUG, Topic(LinkStateMgmt));

   RooMsgService::instance().Print("v");


   // Clone composite pdf g to trigger some link state management activity

   RooAbsArg *gprime = gauss.cloneTree();

   gprime->Print();


   // Reset message service to default stream configuration

   RooMsgService::instance().reset();

}

DEBUG
#define DEBUG
Definition Polynomial.cxx:40

f
#define f(i)
Definition RSha256.hxx:104

RooAddPdf.h

RooDataSet.h

RooGaussian.h

RooMsgService.h

RooPlot.h

RooPolynomial.h

RooRealVar.h

TAxis.h

TCanvas.h

TRangeDynCast
ROOT::Detail::TRangeCast< T, true > TRangeDynCast
TRangeDynCast is an adapter class that allows the typed iteration through a TCollection.
Definition TCollection.h:358

data
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void data
Definition TGWin32VirtualXProxy.cxx:104

ROOT::Detail::TRangeCast
Definition TCollection.h:311

RooAbsArg
Common abstract base class for objects that represent a value and a "shape" in RooFit.
Definition RooAbsArg.h:77

RooAddPdf
Efficient implementation of a sum of PDFs of the form.
Definition RooAddPdf.h:33

RooArgSet
RooArgSet is a container object that can hold multiple RooAbsArg objects.
Definition RooArgSet.h:24

RooGaussian
Plain Gaussian p.d.f.
Definition RooGaussian.h:24

RooMsgService::instance
static RooMsgService & instance()
Return reference to singleton instance.
Definition RooMsgService.cxx:344

RooPolynomial
RooPolynomial implements a polynomial p.d.f of the form.
Definition RooPolynomial.h:25

RooRealVar
Variable that can be changed from the outside.
Definition RooRealVar.h:37

RooFit::ClassName
RooCmdArg ClassName(const char *name)
Definition RooGlobalFunc.cxx:984

RooFit::Topic
RooCmdArg Topic(Int_t topic)
Definition RooGlobalFunc.cxx:976

RooFit::OutputFile
RooCmdArg OutputFile(const char *fileName)
Definition RooGlobalFunc.cxx:497

RooFit::Verbose
RooCmdArg Verbose(bool flag=true)
Definition RooGlobalFunc.cxx:625

x
Double_t x[n]
Definition legend1.C:17

RooFit
The namespace RooFit contains mostly switches that change the behaviour of functions of PDFs (or othe...
Definition CodegenImpl.h:65

rf506_msgservice
Definition rf506_msgservice.py:1

m
TMarker m
Definition textangle.C:8