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Reference Guide
rf407_latextables.C File Reference

Detailed Description

View in nbviewer Open in SWAN 'DATA AND CATEGORIES' RooFit tutorial macro #407

Latex printing of lists and sets of RooArgSets

0.0285210609436
4.81331300735
Processing /mnt/build/workspace/root-makedoc-v614/rootspi/rdoc/src/v6-14-00-patches/tutorials/roofit/rf407_latextables.C...
RooFit v3.60 -- Developed by Wouter Verkerke and David Kirkby
Copyright (C) 2000-2013 NIKHEF, University of California & Stanford University
All rights reserved, please read http://roofit.sourceforge.net/license.txt
[#1] INFO:Minization -- RooMinimizer::optimizeConst: activating const optimization
[#1] INFO:Minization -- The following expressions have been identified as constant and will be precalculated and cached: (bkg2,sig1,sig2)
[#1] INFO:Minization -- The following expressions will be evaluated in cache-and-track mode: (bkg1)
**********
** 1 **SET PRINT 1
**********
**********
** 2 **SET NOGRAD
**********
PARAMETER DEFINITIONS:
NO. NAME VALUE STEP SIZE LIMITS
1 a0 5.00000e-01 1.00000e-01 0.00000e+00 1.00000e+00
2 a1 2.00000e-01 1.00000e-01 0.00000e+00 1.00000e+00
3 bkgfrac 5.00000e-01 1.00000e-01 0.00000e+00 1.00000e+00
4 sig1frac 8.00000e-01 1.00000e-01 0.00000e+00 1.00000e+00
**********
** 3 **SET ERR 0.5
**********
**********
** 4 **SET PRINT 1
**********
**********
** 5 **SET STR 1
**********
NOW USING STRATEGY 1: TRY TO BALANCE SPEED AGAINST RELIABILITY
**********
** 6 **MIGRAD 2000 1
**********
FIRST CALL TO USER FUNCTION AT NEW START POINT, WITH IFLAG=4.
START MIGRAD MINIMIZATION. STRATEGY 1. CONVERGENCE WHEN EDM .LT. 1.00e-03
FCN=1963.41 FROM MIGRAD STATUS=INITIATE 14 CALLS 15 TOTAL
EDM= unknown STRATEGY= 1 NO ERROR MATRIX
EXT PARAMETER CURRENT GUESS STEP FIRST
NO. NAME VALUE ERROR SIZE DERIVATIVE
1 a0 5.00000e-01 1.00000e-01 2.01358e-01 5.45557e+00
2 a1 2.00000e-01 1.00000e-01 2.57889e-01 2.12468e+00
3 bkgfrac 5.00000e-01 1.00000e-01 2.01358e-01 2.95374e+01
4 sig1frac 8.00000e-01 1.00000e-01 2.57889e-01 1.90239e+01
ERR DEF= 0.5
MIGRAD MINIMIZATION HAS CONVERGED.
MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX.
COVARIANCE MATRIX CALCULATED SUCCESSFULLY
FCN=1960.64 FROM MIGRAD STATUS=CONVERGED 100 CALLS 101 TOTAL
EDM=3.75265e-06 STRATEGY= 1 ERROR MATRIX ACCURATE
EXT PARAMETER STEP FIRST
NO. NAME VALUE ERROR SIZE DERIVATIVE
1 a0 6.45917e-01 2.21997e-01 7.59449e-03 -6.13466e-03
2 a1 2.39717e-01 1.63607e-01 8.68922e-03 8.68190e-04
3 bkgfrac 4.48723e-01 2.86509e-02 1.18450e-03 2.52740e-02
4 sig1frac 7.07467e-01 5.79941e-02 1.94490e-03 -2.93455e-02
ERR DEF= 0.5
EXTERNAL ERROR MATRIX. NDIM= 25 NPAR= 4 ERR DEF=0.5
5.330e-02 -1.068e-02 -1.772e-03 -1.095e-02
-1.068e-02 2.819e-02 -2.571e-03 1.770e-04
-1.772e-03 -2.571e-03 8.218e-04 8.391e-04
-1.095e-02 1.770e-04 8.391e-04 3.382e-03
PARAMETER CORRELATION COEFFICIENTS
NO. GLOBAL 1 2 3 4
1 0.85615 1.000 -0.276 -0.268 -0.815
2 0.68971 -0.276 1.000 -0.534 0.018
3 0.74062 -0.268 -0.534 1.000 0.503
4 0.86784 -0.815 0.018 0.503 1.000
**********
** 7 **SET ERR 0.5
**********
**********
** 8 **SET PRINT 1
**********
**********
** 9 **HESSE 2000
**********
COVARIANCE MATRIX CALCULATED SUCCESSFULLY
FCN=1960.64 FROM HESSE STATUS=OK 23 CALLS 124 TOTAL
EDM=3.75168e-06 STRATEGY= 1 ERROR MATRIX ACCURATE
EXT PARAMETER INTERNAL INTERNAL
NO. NAME VALUE ERROR STEP SIZE VALUE
1 a0 6.45917e-01 2.21223e-01 1.51890e-03 2.96143e-01
2 a1 2.39717e-01 1.63005e-01 3.47569e-04 -5.47513e-01
3 bkgfrac 4.48723e-01 2.85510e-02 2.36899e-04 -1.02734e-01
4 sig1frac 7.07467e-01 5.77889e-02 3.88981e-04 4.27870e-01
ERR DEF= 0.5
EXTERNAL ERROR MATRIX. NDIM= 25 NPAR= 4 ERR DEF=0.5
5.289e-02 -1.058e-02 -1.763e-03 -1.085e-02
-1.058e-02 2.797e-02 -2.538e-03 1.785e-04
-1.763e-03 -2.538e-03 8.161e-04 8.330e-04
-1.085e-02 1.785e-04 8.330e-04 3.358e-03
PARAMETER CORRELATION COEFFICIENTS
NO. GLOBAL 1 2 3 4
1 0.85497 1.000 -0.275 -0.268 -0.814
2 0.68674 -0.275 1.000 -0.531 0.018
3 0.73847 -0.268 -0.531 1.000 0.503
4 0.86683 -0.814 0.018 0.503 1.000
[#1] INFO:Minization -- RooMinimizer::optimizeConst: deactivating const optimization
\begin{tabular}{lc}
$\verb+a0+ $ & $ 0.6\pm 0.2$\\
$\verb+a1+ $ & $ 0.2\pm 0.2$\\
$\verb+alpha+ $ & $ -1.00$\\
$\verb+bkgfrac+ $ & $ 0.45\pm 0.03$\\
$\verb+mean+ $ & $ 5$\\
$\verb+sig1frac+ $ & $ 0.71\pm 0.06$\\
$\verb+sigma1+ $ & $ 0.5$\\
$\verb+sigma2+ $ & $ 1$\\
\end{tabular}
\begin{tabular}{lc|lc}
$\verb+a0+ $ & $ 0.6\pm 0.2$ & $\verb+mean+ $ & $ 5$\\
$\verb+a1+ $ & $ 0.2\pm 0.2$ & $\verb+sig1frac+ $ & $ 0.71\pm 0.06$\\
$\verb+alpha+ $ & $ -1.00$ & $\verb+sigma1+ $ & $ 0.5$\\
$\verb+bkgfrac+ $ & $ 0.45\pm 0.03$ & $\verb+sigma2+ $ & $ 1$\\
\end{tabular}
\begin{tabular}{lcc}
$\verb+a0+ $ & $ 0.6\pm 0.2$ & $ 0.5$\\
$\verb+a1+ $ & $ 0.2\pm 0.2$ & $ 0.2$\\
$\verb+alpha+ $ & $ -1.00$ & $-1.00$\\
$\verb+bkgfrac+ $ & $ 0.45\pm 0.03$ & $ 0.5$\\
$\verb+mean+ $ & $ 5$ & $ 5$\\
$\verb+sig1frac+ $ & $ 0.71\pm 0.06$ & $ 0.8$\\
$\verb+sigma1+ $ & $ 0.5$ & $ 0.5$\\
$\verb+sigma2+ $ & $ 1$ & $ 1$\\
\end{tabular}
\begin{tabular}{lcc|lcc}
$\verb+a0+ $ & $ 0.6\pm 0.2$ & $ 0.5$ & $\verb+mean+ $ & $ 5$ & $ 5$\\
$\verb+a1+ $ & $ 0.2\pm 0.2$ & $ 0.2$ & $\verb+sig1frac+ $ & $ 0.71\pm 0.06$ & $ 0.8$\\
$\verb+alpha+ $ & $ -1.00$ & $-1.00$ & $\verb+sigma1+ $ & $ 0.5$ & $ 0.5$\\
$\verb+bkgfrac+ $ & $ 0.45\pm 0.03$ & $ 0.5$ & $\verb+sigma2+ $ & $ 1$ & $ 1$\\
\end{tabular}
#include "RooRealVar.h"
#include "RooDataSet.h"
#include "RooGaussian.h"
#include "RooConstVar.h"
#include "RooChebychev.h"
#include "RooAddPdf.h"
#include "RooExponential.h"
#include "TCanvas.h"
#include "TAxis.h"
#include "RooPlot.h"
using namespace RooFit ;
void rf407_latextables()
{
// S e t u p c o m p o s i t e p d f
// --------------------------------------
// Declare observable x
RooRealVar x("x","x",0,10) ;
// Create two Gaussian PDFs g1(x,mean1,sigma) anf g2(x,mean2,sigma) and their parameters
RooRealVar mean("mean","mean of gaussians",5) ;
RooRealVar sigma1("sigma1","width of gaussians",0.5) ;
RooRealVar sigma2("sigma2","width of gaussians",1) ;
RooGaussian sig1("sig1","Signal component 1",x,mean,sigma1) ;
RooGaussian sig2("sig2","Signal component 2",x,mean,sigma2) ;
// Sum the signal components into a composite signal p.d.f.
RooRealVar sig1frac("sig1frac","fraction of component 1 in signal",0.8,0.,1.) ;
RooAddPdf sig("sig","Signal",RooArgList(sig1,sig2),sig1frac) ;
// Build Chebychev polynomial p.d.f.
RooRealVar a0("a0","a0",0.5,0.,1.) ;
RooRealVar a1("a1","a1",0.2,0.,1.) ;
RooChebychev bkg1("bkg1","Background 1",x,RooArgSet(a0,a1)) ;
// Build expontential pdf
RooRealVar alpha("alpha","alpha",-1) ;
RooExponential bkg2("bkg2","Background 2",x,alpha) ;
// Sum the background components into a composite background p.d.f.
RooRealVar bkg1frac("sig1frac","fraction of component 1 in background",0.2,0.,1.) ;
RooAddPdf bkg("bkg","Signal",RooArgList(bkg1,bkg2),sig1frac) ;
// Sum the composite signal and background
RooRealVar bkgfrac("bkgfrac","fraction of background",0.5,0.,1.) ;
RooAddPdf model("model","g1+g2+a",RooArgList(bkg,sig),bkgfrac) ;
// M a k e l i s t o f p a r a m e t e r s b e f o r e a n d a f t e r f i t
// ----------------------------------------------------------------------------------------
// Make list of model parameters
RooArgSet* params = model.getParameters(x) ;
// Save snapshot of prefit parameters
RooArgSet* initParams = (RooArgSet*) params->snapshot() ;
// Do fit to data, to obtain error estimates on parameters
RooDataSet* data = model.generate(x,1000) ;
model.fitTo(*data) ;
// P r i n t l a t ex t a b l e o f p a r a m e t e r s o f p d f
// --------------------------------------------------------------------------
// Print parameter list in LaTeX for (one column with names, one column with values)
params->printLatex() ;
// Print parameter list in LaTeX for (names values|names values)
params->printLatex(Columns(2)) ;
// Print two parameter lists side by side (name values initvalues)
params->printLatex(Sibling(*initParams)) ;
// Print two parameter lists side by side (name values initvalues|name values initvalues)
params->printLatex(Sibling(*initParams),Columns(2)) ;
// Write LaTex table to file
params->printLatex(Sibling(*initParams),OutputFile("rf407_latextables.tex")) ;
}
Author
07/2008 - Wouter Verkerke

Definition in file rf407_latextables.C.