本文整理汇总了C++中RooFitResult::Delete方法的典型用法代码示例。如果您正苦于以下问题：C++ RooFitResult::Delete方法的具体用法？C++ RooFitResult::Delete怎么用？C++ RooFitResult::Delete使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类RooFitResult的用法示例。
在下文中一共展示了RooFitResult::Delete方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: crossfeeds_nondiag
void crossfeeds_nondiag(TString title,
TString bkgfile,
TString epsfile,
TString txtfile,
Double_t alpha_,
Double_t mass_,
Double_t n_,
Double_t sigma_
)
{
RooRealVar mbc("mbc", "m_{BC}", 1.83, 1.89, "GeV");
RooRealVar ebeam("ebeam", "Ebeam", 0., 100., "GeV");
RooRealVar chg("chg", "Charge", -2, 2);
RooCategory passed("passed", "Event should be used for plot");
passed.defineType("yes", 1);
passed.defineType("no", 0);
RooRealVar arg_cutoff ("arg_cutoff", "Argus cutoff", 1.8865, 1.885, 1.8875,"GeV");
RooRealVar arg_slope ("arg_slope", "Argus slope", -13, -100, 40);
RooRealVar mbc_float ("mbc_float", "Floating D mass", mass_, "GeV");
RooRealVar sigma ("sigma", "CB width", sigma_, "GeV");
RooRealVar alpha("alpha", "CB shape cutoff", alpha_);
RooRealVar n("n", "CB tail parameter", n_);
RooCBShape cb_float ("cb_float", "Floating Crystal Barrel", mbc, mbc_float, sigma, alpha, n);
RooArgusBG argus("argus", "Argus BG", mbc, arg_cutoff, arg_slope);
RooRealVar yld("yield", "D yield", 0, -30, 100000);
RooRealVar bkg("bkg", "Background", 20, 0, 40000);
// Build pdf
RooAddPdf sumpdf_float("sumpdf_float", "Generic D sum pdf", RooArgList(cb_float, argus),
RooArgList(yld, bkg));
RooDataSet* dset = RooDataSet::read(bkgfile, RooArgList(mbc, ebeam, passed), "", "");
RooPlot* xframe = mbc.frame();
RooDataSet* dset2 = dset->reduce("passed==1");
dset2->plotOn(xframe);
// RooFitResult* rv = sumpdf_float.fitTo(*dset2, Extended(kTRUE), Save(kTRUE),
// Hesse(kTRUE), Verbose(kTRUE));
RooFitResult* rv = sumpdf_float.fitTo(*dset2, "ermh");
sumpdf_float.paramOn(xframe, dset2);
if ((yld.getVal() < 0) && (-yld.getVal()/bkg.getVal() > 0.5)){
yld.setVal(0);
bkg.setVal(1);
}
sumpdf_float.plotOn(xframe);
sumpdf_float.plotOn(xframe, Components(RooArgSet(argus)),
LineColor(kRed), LineStyle(kDashed));
TCanvas* c1 = new TCanvas("c1","Canvas", 2);
xframe->SetTitleOffset(2.2, "Y");
xframe->SetTitleOffset(1.1, "X");
xframe->SetTitle(title);
c1->SetLeftMargin(0.17);
xframe->Draw();
if ( rv && rv->covQual() != 3){
// fit has failed
TText *txt = new TText();
txt->SetTextSize(.08);
txt->SetTextAlign(22);
txt->SetTextAngle(30);
txt->DrawTextNDC(0.5, 0.5, "FAILED");
}
c1->Update();
c1->Print(epsfile);
c1->Clear();
FILE* table = fopen(txtfile.Data(), "w+");
fprintf(table, "Name\t|| Value\t|| Error\n");
// fprintf(table, "yldsigma\t| %.10f\t| \n", yld.getVal()/yld.getError());
fprintf(table, "entries\t| %.10f\t| \n", dset->numEntries());
fprintf(table, "yld\t| %.10f\t| %.10f\n", yld.getVal(), yld.getError());
// fprintf(table, "ratio\t| %.10f\t| \n", yld.getVal()/dset->numEntries());
// fprintf(table, "ratioerr\t| %.10f\t| \n", yld.getError()/dset->numEntries());
fclose(table);
cout << "Saved output as: " << txtfile << endl;
rv->Delete();
}