/// \file /// \ingroup tutorial_roofit /// \notebook -nodraw /// /// Data and categories: latex printing of lists and sets of RooArgSets /// /// \macro_output /// \macro_code /// /// \date 07/2008 /// \author Wouter Verkerke #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")); }