C++ TMinuit::Command方法代码示例

本文整理汇总了C++中TMinuit::Command方法的典型用法代码示例。如果您正苦于以下问题：C++ TMinuit::Command方法的具体用法？C++ TMinuit::Command怎么用？C++ TMinuit::Command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TMinuit的用法示例。

在下文中一共展示了TMinuit::Command方法的3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: Ifit


//.........这里部分代码省略.........
    fin_gjet6000->Close();

    return fitted;
  }    

  printf(" --------- before the fit ------------- \n");
  printf("Nsig %2.3f, Nbg %2.3f, Ntemplate %3.3f \n", hsig->Integral(), hbkg->Integral(), ntemplate);
  printf("Purity %2.3f, init size %4.3f,  test sample size %4d\n", hsig->Integral()/hsum->Integral(), hsum->Integral(), ndata);
  printf(" -------------------------------------- \n");

  int nbins = hdata->GetNbinsX();
  for (int ibin=1; ibin<=nbins; ibin++) {
    dataColl.push_back(hdata->GetBinContent(ibin));
    sigColl.push_back(hsig->GetBinContent(ibin));
    bkgColl.push_back(hbkg->GetBinContent(ibin));    
  }
  printf( " -----  Got %d, %d, %d events for fit ----- \n ", dataColl.size(), sigColl.size(), bkgColl.size() );  
  if ( dataColl.size() != sigColl.size() || sigColl.size()!=bkgColl.size() ) {
    printf(" error ...  inconsistent hit collection size \n");
    fin_data->Close();
    fin->Close();
    fin_gjet6000->Close();

    return fitted;
  }

  //--------------------------------------------------
  //init parameters for fit
  Double_t vstart[10] = {1., 1.};
  vstart[0] = sigfrac*ndata;
  vstart[1] = (1-sigfrac)*ndata;
 
  TMinuit *gMinuit = new TMinuit(NPAR);  
  gMinuit->Command("SET STR 1");
  gMinuit->SetFCN(fcn);
  Double_t arglist[10];
  Int_t ierflg = 0;
  
  arglist[0] = 1;
  gMinuit->mnexcm("SET ERR", arglist ,1,ierflg);
  arglist[0] = 1;
  gMinuit->mnexcm("SET PRINT", arglist ,1,ierflg);

  Double_t step[] = { 0.1, 0.1,};

  gMinuit->mnparm(0,  "Signal yield"  , vstart[0],  step[0], 0., ndata*2.  , ierflg);
  gMinuit->mnparm(1,  "background yield"  , vstart[1],  step[1], 0., ndata*2. , ierflg);
  
  printf(" --------------------------------------------------------- \n");
  printf(" Now ready for minimization step \n --------------------------------------------------------- \n");
  
  arglist[0] = 2000; // number of iteration
  arglist[1] = 1.;
  gMinuit->mnexcm("MIGRAD", arglist ,2,ierflg);
  printf (" -------------------------------------------- \n");
  printf("Finished.  ierr = %2.2f \n", ierflg);

  info.clear();
  info_err.clear();

  double para[NPAR+1],errpara[NPAR+1];
  if ( ierflg == 0 ) 
    {
      for(int j=0; j<=NPAR-1;j++) {
        gMinuit->GetParameter(j, para[j],errpara[j]);
        para[NPAR] = dataColl.size();

开发者ID:alphatsai，项目名称:TTBarCPVAnalysisRun1，代码行数:67，代码来源:ext-mL_fit.C

示例2: Ifit


//.........这里部分代码省略.........
  f11->SetNpx(10000);
  f11->SetParameters(f3->GetParameters());
  f11->Draw();
  printf(" SIG PDF area %2.3f \n", f11->Integral(-1., 20.));

  c11->cd(2);
  TF1 *f12 = new TF1("f12",expinv_power_norm, -1., 20., 11);
  f12->SetNpx(10000);
  f12->SetParameters(f3->GetParameters());
  f12->Draw();
  printf(" BKG PDF area %2.3f \n", f12->Integral(-1., 20.));

  //c1->cd();

  printf(" --------- before the fit ------------- \n");
  printf("Nsig %2.3f, Nbg %2.3f, Ntemplate %3.3f \n", hsig->Integral(), hbkg->Integral(), ntemplate);
  printf("Purity %2.3f, init size %4.3f,  fit sample size %4d\n", hsig->Integral()/hsum->Integral(), hsum->Integral(), ndata);
  printf(" -------------------------------------- \n");



  printf( " -----  Got %d, %d, %d events for fit ----- \n ", dataColl.size(),
	  sigColl.size(), bkgColl.size() );  

  //--------------------------------------------------
  //init parameters for fit
  Double_t vstart[11] = {1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.};
  vstart[0] = sigfrac*ndata;
  vstart[1] = (1-sigfrac)*ndata;
  for (int ii=0; ii<9; ii++) {    
    vstart[ii+2] = Para[ii]; //8 shape parameters
  }
  TMinuit *gMinuit = new TMinuit(NPAR);  
  gMinuit->Command("SET STR 1");
  gMinuit->SetFCN(fcn);
  Double_t arglist[11];
  Int_t ierflg = 0;
  
  arglist[0] = 1;
  gMinuit->mnexcm("SET ERR", arglist ,1,ierflg);
  arglist[0] = 1;
  gMinuit->mnexcm("SET PRINT", arglist ,1,ierflg);

  Double_t step[] = { 1.,1.,0.01,0.01,0.01,0.01,0.01,0.01,0.01,0.01,0.01,};

  for ( int ii=0; ii<9; ii++){
    printf(" para %d, %.5f, err %.5f \n", ii, Para[ii], Para_err[ii]);
  }

  float sigma = 3.;
  gMinuit->mnparm(0,  "Signal yield"  , vstart[0],  step[0], 0., ndata*2.  , ierflg);
  gMinuit->mnparm(1,  "background yield"  , vstart[1],  step[1], 0., ndata*2. , ierflg);

//   gMinuit->mnparm(2,  "constant"     , Para[0],  0.00,  Para[0], Para[0] , ierflg);
//   gMinuit->mnparm(3,  "exp tail"     , Para[1],  0.01,  Para[1]-sigma*Para_err[1], Para[1]+sigma*Para_err[1], ierflg);
//   gMinuit->mnparm(4,  "exg mean"     , Para[2],  0.01,  Para[2]-sigma*Para_err[2], Para[2]+sigma*Para_err[2], ierflg);
//   gMinuit->mnparm(5,  "exg width"    , Para[3],  0.01,  Para[3]-sigma*Para_err[3], Para[3]+sigma*Para_err[3], ierflg);
//   gMinuit->mnparm(6,  "constant"     , Para[4],  0.00,  Para[4]                  , Para[4]                  , ierflg);
//   gMinuit->mnparm(7,  "bg exp turnon", Para[5],  0.01,  Para[5]-sigma*Para_err[5], Para[5]+sigma*Para_err[5], ierflg);
//   gMinuit->mnparm(8,  "bg x offset  ", Para[6],  0.01,  Para[6]-sigma*Para_err[6], Para[6]+sigma*Para_err[6], ierflg);
//   gMinuit->mnparm(9,  "bg bend slope", Para[7],  0.01,  0.001                    , 0.1                      , ierflg);
// //   gMinuit->mnparm(10, "bg bend power", Para[8],  0.01,  Para[8]-sigma*Para_err[8], Para[8]+sigma*Para_err[8], ierflg);
//   gMinuit->mnparm(10, "bg bend power", Para[8],  0.01,  0.5                       , 5.                       , ierflg);

//   gMinuit->mnparm(2,  "constant"     , Para[0], TMath::Abs(Para[0]*0.0) ,  Para[0], Para[0], ierflg);
//   gMinuit->mnparm(3,  "exp tail"     , Para[1], TMath::Abs(Para[1]*0.01) ,  Para[1]-sigma*Para_err[1], Para[1]+sigma*Para_err[1], ierflg);

开发者ID:ramankhurana，项目名称:usercode，代码行数:67，代码来源:VaryTurnOn_ext-mL_fit_ISO.C

示例3: IfitBin

//___________________________________________________________________________
Double_t* IfitBin(TH1F* dataInput, TH1F* sigTemplate, TH1F* bkgTemplate, 
	       int fit_data=1)
{

  cout << "Input files are " << dataInput->GetName() << "\t" << sigTemplate->GetName() << "\t" << bkgTemplate->GetName() << endl;

  TCanvas *c1 = new TCanvas("HF1", "Histos1", 0, 0, 600, 600);
  dataCollBin.clear();
  sigCollBin.clear();
  bkgCollBin.clear();

  Double_t* fitted = new Double_t[8];
  fitted[0] = fitted[1] = fitted[2] = fitted[3] = fitted[4] = fitted[5] = fitted[6] = fitted[7] = 0.0;

  TH1F *hsum = new TH1F();
  float ntemplate = 1.;
  float sigfrac = 0.1;
  TH1F *hsum_norm = new TH1F();
  TH1F *hdata;
  TH1F *hsig  = (TH1F*)sigTemplate->Clone();
  hsig->SetName("hsig");
  hsig->Rebin(6);

  TH1F *hbkg  = (TH1F*)bkgTemplate->Clone();
  hbkg->SetName("hbkg");
  hbkg->Rebin(6);

  float ndata=0;
  if ( fit_data>0 ) {
    hdata = (TH1F*)dataInput->Clone();
    hdata -> SetName("hdata");
    ndata = hdata->Integral();
  }else {
    hsum = (TH1F*)hsig->Clone();
    hsum->Add(hbkg,1);
    cout << "For histogram " << sigTemplate->GetName() << " and " << bkgTemplate->GetName() << " sum = " << 
      hsum->Integral() << endl;

    if (hsum->Integral()>1.) ntemplate = hsum->Integral();
    sigfrac = hsig->Integral()/ntemplate;

    hsum_norm = (TH1F*)hsum->Clone();  
    hsum_norm->Scale(1./hsum->Integral());

    hdata = (TH1F*)hsum_norm->Clone();
    hdata -> SetName("hdata");
    ndata=ntemplate;
    hdata->FillRandom(hsum_norm, ndata);
  }
  if(ndata==0) {
    printf(" ---  no events in the fit \n");
    return fitted;
  }
    
  printf(" --------- before the fit ------------- \n");
  printf("Nsig %2.3f, Nbg %2.3f, Ntemplate %3.3f \n", hsig->Integral(), hbkg->Integral(), ntemplate);
//   printf("Purity %2.3f, init size %4.3f,  test sample size %4d\n", hsig->Integral()/hsum->Integral(), hsum->Integral(), ndata);
  printf(" -------------------------------------- \n");

  hdata->Rebin(6);
  int nbins = hdata->GetNbinsX();

  hsig->Scale(1./hsig->Integral());
  hbkg->Scale(1./hbkg->Integral());  

  for (int ibin=1; ibin<=nbins; ibin++) {
    dataCollBin.push_back(hdata->GetBinContent(ibin));
    sigCollBin.push_back(hsig->GetBinContent(ibin));
    bkgCollBin.push_back(hbkg->GetBinContent(ibin));    
  }
  printf( " -----  Got %d, %d, %d events for fit ----- \n ", dataCollBin.size(),
	  sigCollBin.size(), bkgCollBin.size() );  
  if ( dataCollBin.size() != sigCollBin.size() || sigCollBin.size()!=bkgCollBin.size() ) {
    printf(" error ...  inconsistent hit collection size \n");
    return fitted;
  }

  //--------------------------------------------------
  //init parameters for fit
  Double_t vstart[10] = {1., 1.};
  vstart[0] = sigfrac*ndata;
  vstart[1] = (1-sigfrac)*ndata;
 
  TMinuit *gMinuit = new TMinuit(NPARBIN);  
  gMinuit->Command("SET STR 1");
  gMinuit->SetFCN(fcnBin);
  Double_t arglist[10];
  Int_t ierflg = 0;
  
  arglist[0] = 1;
  gMinuit->mnexcm("SET ERR", arglist ,1,ierflg);
  arglist[0] = 1;
  gMinuit->mnexcm("SET PRINT", arglist ,1,ierflg);

  Double_t step[] = { 0.1, 0.1,};

  gMinuit->mnparm(0,  "Signal yield"  , vstart[0],  step[0], 0., ndata*2.  , ierflg);
  gMinuit->mnparm(1,  "background yield"  , vstart[1],  step[1], 0., ndata*2. , ierflg);
  
//.........这里部分代码省略.........

开发者ID:ramankhurana，项目名称:usercode，代码行数:101，代码来源:ext-mL_fit.C

注：本文中的TMinuit::Command方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。