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#include <MuonResidualsPositionFitter.h>
Public Types | |
| enum | { kPosition = 0, kZpos, kPhiz, kScattering, kSigma, kGamma, kNPar } |
| enum | { kResidual = 0, kAngleError, kTrackAngle, kTrackPosition, kNData } |
Public Member Functions | |
| bool | fit (Alignable *ali) |
| MuonResidualsPositionFitter (int residualsModel, int minHits, bool weightAlignment=true) | |
| int | ndata () |
| int | npar () |
| double | plot (std::string name, TFileDirectory *dir, Alignable *ali) |
| double | sumofweights () |
| int | type () const |
Protected Member Functions | |
| void | inform (TMinuit *tMinuit) |
| anonymous enum |
Definition at line 14 of file MuonResidualsPositionFitter.h.
| anonymous enum |
Definition at line 24 of file MuonResidualsPositionFitter.h.
{
kResidual = 0,
kAngleError,
kTrackAngle,
kTrackPosition,
kNData
};
| MuonResidualsPositionFitter::MuonResidualsPositionFitter | ( | int | residualsModel, |
| int | minHits, | ||
| bool | weightAlignment = true |
||
| ) | [inline] |
Definition at line 32 of file MuonResidualsPositionFitter.h.
: MuonResidualsFitter(residualsModel, minHits, weightAlignment) {};
| bool MuonResidualsPositionFitter::fit | ( | Alignable * | ali | ) | [virtual] |
Implements MuonResidualsFitter.
Definition at line 42 of file MuonResidualsPositionFitter.cc.
References MuonResidualsFitter::dofit(), MuonResidualsFitter::initialize_table(), kGamma, MuonResidualsFitter::kGaussPowerTails, kPhiz, kPosition, MuonResidualsFitter::kPureGaussian, kResidual, kScattering, kSigma, kZpos, MuonResidualsFitter::m_minHits, plotscripts::mean(), MuonResidualsPositionFitter_FCN(), MultiGaussianStateTransform::N, funct::pow(), MuonResidualsFitter::residuals_begin(), MuonResidualsFitter::residuals_end(), MuonResidualsFitter::residualsModel(), mathSSE::sqrt(), plotscripts::stdev(), and launcher::step.
{
initialize_table(); // if not already initialized
double sum_x = 0.;
double sum_xx = 0.;
int N = 0;
for (std::vector<double*>::const_iterator resiter = residuals_begin(); resiter != residuals_end(); ++resiter) {
const double residual = (*resiter)[kResidual];
// const double angleerror = (*resiter)[kAngleError];
// const double trackangle = (*resiter)[kTrackAngle];
// const double trackposition = (*resiter)[kTrackPosition];
if (fabs(residual) < 10.) { // truncate at 100 mm
sum_x += residual;
sum_xx += residual*residual;
N++;
}
}
if (N < m_minHits) return false;
// truncated mean and stdev to seed the fit
double mean = sum_x/double(N);
double stdev = sqrt(sum_xx/double(N) - pow(sum_x/double(N), 2));
// refine the standard deviation calculation
sum_x = 0.;
sum_xx = 0.;
N = 0;
for (std::vector<double*>::const_iterator resiter = residuals_begin(); resiter != residuals_end(); ++resiter) {
const double residual = (*resiter)[kResidual];
if (mean - 1.5*stdev < residual && residual < mean + 1.5*stdev) {
sum_x += residual;
sum_xx += residual*residual;
N++;
}
}
mean = sum_x/double(N);
stdev = sqrt(sum_xx/double(N) - pow(sum_x/double(N), 2));
sum_x = 0.;
sum_xx = 0.;
N = 0;
for (std::vector<double*>::const_iterator resiter = residuals_begin(); resiter != residuals_end(); ++resiter) {
const double residual = (*resiter)[kResidual];
if (mean - 1.5*stdev < residual && residual < mean + 1.5*stdev) {
sum_x += residual;
sum_xx += residual*residual;
N++;
}
}
mean = sum_x/double(N);
stdev = sqrt(sum_xx/double(N) - pow(sum_x/double(N), 2));
std::vector<int> parNum;
std::vector<std::string> parName;
std::vector<double> start;
std::vector<double> step;
std::vector<double> low;
std::vector<double> high;
parNum.push_back(kPosition); parName.push_back(std::string("position")); start.push_back(mean); step.push_back(0.1); low.push_back(0.); high.push_back(0.);
parNum.push_back(kZpos); parName.push_back(std::string("zpos")); start.push_back(0.); step.push_back(0.1); low.push_back(0.); high.push_back(0.);
parNum.push_back(kPhiz); parName.push_back(std::string("phiz")); start.push_back(0.); step.push_back(0.1); low.push_back(0.); high.push_back(0.);
parNum.push_back(kScattering); parName.push_back(std::string("scattering")); start.push_back(0.); step.push_back(0.1*1000.); low.push_back(0.); high.push_back(0.);
parNum.push_back(kSigma); parName.push_back(std::string("sigma")); start.push_back(stdev); step.push_back(0.1*stdev); low.push_back(0.); high.push_back(0.);
if (residualsModel() != kPureGaussian && residualsModel() != kGaussPowerTails) {
parNum.push_back(kGamma); parName.push_back(std::string("gamma")); start.push_back(stdev); step.push_back(0.1*stdev); low.push_back(0.); high.push_back(0.);
}
return dofit(&MuonResidualsPositionFitter_FCN, parNum, parName, start, step, low, high);
}
| void MuonResidualsPositionFitter::inform | ( | TMinuit * | tMinuit | ) | [protected, virtual] |
Implements MuonResidualsFitter.
Definition at line 5 of file MuonResidualsPositionFitter.cc.
References MuonResidualsPositionFitter_TMinuit.
{
MuonResidualsPositionFitter_TMinuit = tMinuit;
}
| int MuonResidualsPositionFitter::ndata | ( | ) | [inline, virtual] |
Implements MuonResidualsFitter.
Definition at line 42 of file MuonResidualsPositionFitter.h.
References kNData.
{ return kNData; };
| int MuonResidualsPositionFitter::npar | ( | ) | [inline, virtual] |
Implements MuonResidualsFitter.
Definition at line 36 of file MuonResidualsPositionFitter.h.
References MuonResidualsFitter::kGaussPowerTails, kNPar, MuonResidualsFitter::kPowerLawTails, MuonResidualsFitter::kPureGaussian, MuonResidualsFitter::kROOTVoigt, and MuonResidualsFitter::residualsModel().
{
if (residualsModel() == kPureGaussian || residualsModel() == kGaussPowerTails) return kNPar - 1;
else if (residualsModel() == kPowerLawTails) return kNPar;
else if (residualsModel() == kROOTVoigt) return kNPar;
else assert(false);
};
| double MuonResidualsPositionFitter::plot | ( | std::string | name, |
| TFileDirectory * | dir, | ||
| Alignable * | ali | ||
| ) | [virtual] |
Implements MuonResidualsFitter.
Definition at line 116 of file MuonResidualsPositionFitter.cc.
References kAngleError, kGamma, MuonResidualsFitter::kGaussPowerTails, kPhiz, kPosition, MuonResidualsFitter::kPowerLawTails, MuonResidualsFitter::kPureGaussian, kResidual, MuonResidualsFitter::kROOTVoigt, kScattering, kSigma, kTrackAngle, kTrackPosition, kZpos, TFileDirectory::make(), MuonResidualsFitter_GaussPowerTails_TF1(), MuonResidualsFitter_powerLawTails_TF1(), MuonResidualsFitter_pureGaussian_TF1(), MuonResidualsFitter_ROOTVoigt_TF1(), NULL, MuonResidualsFitter::numResiduals(), MuonResidualsFitter::residuals_begin(), MuonResidualsFitter::residuals_end(), MuonResidualsFitter::residualsModel(), and MuonResidualsFitter::value().
{
std::stringstream raw_name, narrowed_name, angleerror_name, trackangle_name, trackposition_name;
raw_name << name << "_raw";
narrowed_name << name << "_narrowed";
angleerror_name << name << "_angleerror";
trackangle_name << name << "_trackangle";
trackposition_name << name << "_trackposition";
TH1F *raw_hist = dir->make<TH1F>(raw_name.str().c_str(), (raw_name.str() + std::string(" (mm)")).c_str(), 100, -100., 100.);
TH1F *narrowed_hist = dir->make<TH1F>(narrowed_name.str().c_str(), (narrowed_name.str() + std::string(" (mm)")).c_str(), 100, -100., 100.);
TProfile *angleerror_hist = dir->make<TProfile>(angleerror_name.str().c_str(), (angleerror_name.str() + std::string(" (mm)")).c_str(), 100, -30., 30.);
TProfile *trackangle_hist = dir->make<TProfile>(trackangle_name.str().c_str(), (trackangle_name.str() + std::string(" (mm)")).c_str(), 100, -0.5, 0.5);
TProfile *trackposition_hist = dir->make<TProfile>(trackposition_name.str().c_str(), (trackposition_name.str() + std::string(" (mm)")).c_str(), 100, -300., 300.);
angleerror_hist->SetAxisRange(-100., 100., "Y");
trackangle_hist->SetAxisRange(-10., 10., "Y");
trackposition_hist->SetAxisRange(-10., 10., "Y");
narrowed_name << "fit";
angleerror_name << "fit";
trackangle_name << "fit";
trackposition_name << "fit";
double scale_factor = double(numResiduals()) * (100. - -100.)/100; // (max - min)/nbins
TF1 *narrowed_fit = NULL;
if (residualsModel() == kPureGaussian) {
narrowed_fit = new TF1(narrowed_name.str().c_str(), MuonResidualsFitter_pureGaussian_TF1, -100., 100., 3);
narrowed_fit->SetParameters(scale_factor, value(kPosition) * 10., value(kSigma) * 10.);
narrowed_fit->Write();
}
else if (residualsModel() == kPowerLawTails) {
narrowed_fit = new TF1(narrowed_name.str().c_str(), MuonResidualsFitter_powerLawTails_TF1, -100., 100., 4);
narrowed_fit->SetParameters(scale_factor, value(kPosition) * 10., value(kSigma) * 10., value(kGamma) * 10.);
narrowed_fit->Write();
}
else if (residualsModel() == kROOTVoigt) {
narrowed_fit = new TF1(narrowed_name.str().c_str(), MuonResidualsFitter_ROOTVoigt_TF1, -100., 100., 4);
narrowed_fit->SetParameters(scale_factor, value(kPosition) * 10., value(kSigma) * 10., value(kGamma) * 10.);
narrowed_fit->Write();
}
else if (residualsModel() == kGaussPowerTails) {
narrowed_fit = new TF1(narrowed_name.str().c_str(), MuonResidualsFitter_GaussPowerTails_TF1, -100., 100., 3);
narrowed_fit->SetParameters(scale_factor, value(kPosition) * 10., value(kSigma) * 10.);
narrowed_fit->Write();
}
TF1 *angleerror_fit = new TF1(angleerror_name.str().c_str(), "[0]+x*[1]", -30., 30.);
angleerror_fit->SetParameters(value(kPosition) * 10., value(kScattering) * 10./1000.);
angleerror_fit->Write();
TF1 *trackangle_fit = new TF1(trackangle_name.str().c_str(), "[0]+x*[1]", -0.5, 0.5);
trackangle_fit->SetParameters(value(kPosition) * 10., value(kZpos) * 10.);
trackangle_fit->Write();
TF1 *trackposition_fit = new TF1(trackposition_name.str().c_str(), "[0]+x*[1]", -300., 300.);
trackposition_fit->SetParameters(value(kPosition) * 10., value(kPhiz) * 10.);
trackposition_fit->Write();
for (std::vector<double*>::const_iterator resiter = residuals_begin(); resiter != residuals_end(); ++resiter) {
const double raw_residual = (*resiter)[kResidual];
const double angleerror = (*resiter)[kAngleError];
const double trackangle = (*resiter)[kTrackAngle];
const double trackposition = (*resiter)[kTrackPosition];
double angleerror_correction = value(kScattering) * angleerror;
double trackangle_correction = value(kZpos) * trackangle;
double trackposition_correction = value(kPhiz) * trackposition;
double corrected_residual = raw_residual - angleerror_correction - trackangle_correction - trackposition_correction;
raw_hist->Fill(raw_residual * 10.);
narrowed_hist->Fill(corrected_residual * 10.);
angleerror_hist->Fill(angleerror*1000., (raw_residual - trackangle_correction - trackposition_correction) * 10.);
trackangle_hist->Fill(trackangle, (raw_residual - angleerror_correction - trackposition_correction) * 10.);
trackposition_hist->Fill(trackposition, (raw_residual - angleerror_correction - trackangle_correction) * 10.);
}
return 0.;
}
| double MuonResidualsPositionFitter::sumofweights | ( | ) | [inline, virtual] |
Implements MuonResidualsFitter.
Definition at line 45 of file MuonResidualsPositionFitter.h.
References MuonResidualsFitter::numResiduals().
{ return numResiduals(); };
| int MuonResidualsPositionFitter::type | ( | ) | const [inline, virtual] |
Implements MuonResidualsFitter.
Definition at line 34 of file MuonResidualsPositionFitter.h.
References MuonResidualsFitter::kPositionFitter.
{ return MuonResidualsFitter::kPositionFitter; };
1.7.3