本文整理汇总了C++中Analysis::Fit方法的典型用法代码示例。如果您正苦于以下问题：C++ Analysis::Fit方法的具体用法？C++ Analysis::Fit怎么用？C++ Analysis::Fit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Analysis的用法示例。
在下文中一共展示了Analysis::Fit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: getJpsiPars
Str2VarMap getJpsiPars(TString type, TCut cut, TFile * file)
{
string datafilename = "/afs/cern.ch/work/p/pluca/weighted/Lmumu/candLb.root";
string candfilename = "/afs/cern.ch/work/p/pluca/weighted/Lmumu/candLb_MC.root";
TFile * MCFile = TFile::Open(candfilename.c_str());
TTree * BdJpsiKSTree = (TTree *)MCFile->Get("candBdJpsiKS");
file->cd();
RooRealVar * vMuMu = new RooRealVar("Lb_MassConsLambda","Lb_MassConsLambda",5620.,5350.,6000.);
Analysis * anaLbMuMu_MC = new Analysis("Lb2Lmumu_"+type+"_MC","Lb","candLb2Lmumu",candfilename,vMuMu,&CutsDef::cutMuMu);
RooRealVar * vJpsi = new RooRealVar("Lb_MassConsJpsiLambda","Lb_MassConsJpsiLambda",5620.,5250.,6000.);
Analysis * anaLbJpsi_default = new Analysis("Jpsi_default","Lb","candLb2JpsiL",datafilename,vJpsi,&CutsDef::cutJpsi);
string model = "DCB_Sn";
string optionsjpsi = "-ANDpulls-log-stdAxis-quiet-XM(#Lambda#mu#mu) (MeV/c^{2})-noCost-nochi2";
string optionsmumu = "-stdAxis-quiet-XM(#Lambda#mu#mu) (MeV/c^{2})-noCost-nochi2";
anaLbMuMu_MC->SetSignal((model+"-s[9]-s2[30]").c_str());
anaLbMuMu_MC->Initialize("");
anaLbMuMu_MC->Fit(5400.,5750.,200,true,"-stdAxis-XM(#Lambda#mu#mu) (MeV/c^{2})-noCost-nochi2",CutsDef::mumuTrueID+cut);
Str2VarMap MCpars = anaLbMuMu_MC->GetSigParams();
Analysis * KS = new Analysis("KS_bkg","Lb",BdJpsiKSTree,vJpsi,"DCB_OST","","-namepar");
KS->Fit(5300.,6000.,150,true,"-noPlot-quiet");
Str2VarMap pars = KS->GetSigParams();
RooRealVar * m_shift = new RooRealVar("m_shift","shift",0.,-5.,5.);
setConstant(&pars);
ModifyPars(&pars,"m",m_shift,"-shift");
string jpsimodel = model+"-Xn"+Form("[%f]",MCpars["n"]->getVal());
jpsimodel += (string)"-s[7,1,12]";//+Form("[%f]",MCpars["s"]->getVal());
jpsimodel += (string)"-s2[15,8,30]";//+Form("[%f,]",MCpars["s2"]->getVal());
jpsimodel += (string)"-a"+Form("[%f]",MCpars["a"]->getVal());
jpsimodel += (string)"-a2"+Form("[%f]",MCpars["a2"]->getVal());
jpsimodel += (string)"-f"+Form("[%f]",MCpars["f"]->getVal());
anaLbJpsi_default->SetSignal(jpsimodel.c_str());
RooRealVar * nKSjpsi = new RooRealVar("nKSjpsi","nKSjpsi",2.e3,0,1.e4);
anaLbJpsi_default->addBkgComponent("JpsiKS","DCB_OST",nKSjpsi,"",pars);
//anaLbJpsi_default->addBkgComponent("BuKst",BuKstmumuTree,350.);
anaLbJpsi_default->Initialize();
anaLbJpsi_default->Fit(5300.,6000.,200,true,optionsjpsi,cut);
Str2VarMap jpsiSigpars = anaLbJpsi_default->GetSigParams();
setConstant(&jpsiSigpars);
RooRealVar * factor = new RooRealVar("factor","factor",1.,0.5,3.);
ModifyPars(&jpsiSigpars,"s",factor);
ModifyPars(&jpsiSigpars,"s2",factor);
return jpsiSigpars;
}