musrfit/src/classes/PRunBase.cpp

266 lines
8.8 KiB
C++

/***************************************************************************
PRunBase.cpp
Author: Andreas Suter
e-mail: andreas.suter@psi.ch
***************************************************************************/
/***************************************************************************
* Copyright (C) 2007-2016 by Andreas Suter *
* andreas.suter@psi.ch *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <iostream>
#include <TROOT.h>
#include <TSystem.h>
#include <TString.h>
#include <TObjArray.h>
#include <TObjString.h>
//#include <TFile.h>
#include <TFolder.h>
#include "TLemRunHeader.h"
#include "PRunBase.h"
//--------------------------------------------------------------------------
// Constructor
//--------------------------------------------------------------------------
/**
* <p>Constructor. Needed otherwise vector's cannot be generated ;-)
*/
PRunBase::PRunBase()
{
fRunNo = -1;
fRunInfo = 0;
fRawData = 0;
fTimeResolution = -1.0;
fFitStartTime = PMUSR_UNDEFINED;
fFitEndTime = PMUSR_UNDEFINED;
fValid = true;
fHandleTag = kEmpty;
}
//--------------------------------------------------------------------------
// Constructor
//--------------------------------------------------------------------------
/**
* <p>Constructor.
*
* \param msrInfo pointer to the msr-file handler
* \param rawData pointer to the raw-data handler
* \param runNo msr-file run number
* \param tag tag telling if fit, view, or rrf representation is whished.
*/
PRunBase::PRunBase(PMsrHandler *msrInfo, PRunDataHandler *rawData, UInt_t runNo, EPMusrHandleTag tag) :
fHandleTag(tag), fMsrInfo(msrInfo), fRawData(rawData)
{
fValid = true;
fRunNo = static_cast<Int_t>(runNo);
if ((runNo < 0) || (runNo > fMsrInfo->GetMsrRunList()->size())) {
fRunInfo = 0;
return;
}
// keep the run header info for this run
fRunInfo = &(*fMsrInfo->GetMsrRunList())[runNo];
// check the parameter and map range of the functions
if (!fMsrInfo->CheckMapAndParamRange(fRunInfo->GetMap()->size(), fMsrInfo->GetNoOfParams())) {
cerr << endl << "**SEVERE ERROR** PRunBase::PRunBase: map and/or parameter out of range in FUNCTIONS." << endl;
exit(0);
}
// init private variables
fTimeResolution = -1.0;
for (Int_t i=0; i<fMsrInfo->GetNoOfFuncs(); i++)
fFuncValues.push_back(0.0);
// generate theory
fTheory = new PTheory(fMsrInfo, runNo);
if (fTheory == 0) {
cerr << endl << "**SEVERE ERROR** PRunBase::PRunBase: Couldn't create an instance of PTheory :-(, will quit" << endl;
exit(0);
}
if (!fTheory->IsValid()) {
cerr << endl << "**SEVERE ERROR** PRunBase::PRunBase: Theory is not valid :-(, will quit" << endl;
exit(0);
}
// set fit time ranges
fFitStartTime = PMUSR_UNDEFINED;
fFitEndTime = PMUSR_UNDEFINED;
}
//--------------------------------------------------------------------------
// Destructor
//--------------------------------------------------------------------------
/**
* <p>Destructor.
*/
PRunBase::~PRunBase()
{
fT0s.clear();
for (UInt_t i=0; i<fAddT0s.size(); i++)
fAddT0s[i].clear();
fAddT0s.clear();
fFuncValues.clear();
}
//--------------------------------------------------------------------------
// SetFitRange (public)
//--------------------------------------------------------------------------
/**
* <p> Sets the current fit range, and recalculated the number of fitted bins
*
* \param fitRange vector with fit ranges
*/
void PRunBase::SetFitRange(PDoublePairVector fitRange)
{
Double_t start=0.0, end=0.0;
assert(fitRange.size()); // make sure fitRange is not empty
if (fitRange.size()==1) { // one fit range for all
start = fitRange[0].first;
end = fitRange[0].second;
} else {
// check that fRunNo is found within fitRange
if (fRunNo < static_cast<Int_t>(fitRange.size())) { // fRunNo present
start = fitRange[fRunNo].first;
end = fitRange[fRunNo].second;
} else { // fRunNo NOT present
cerr << endl << ">> PRunBase::SetFitRange(): **ERROR** msr-file run entry " << fRunNo << " not present in fit range vector.";
cerr << endl << ">> Will not do anything! Please check, this shouldn't happen." << endl;
return;
}
}
// check that start is before end
if (start > end) {
cerr << endl << ">> PRunBase::SetFitRange(): **WARNING** start=" << start << " is > as end=" << end;
cerr << endl << ">> Will swap them, since otherwise chisq/logLH == 0.0" << endl;
fFitStartTime = end;
fFitEndTime = start;
} else {
fFitStartTime = start;
fFitEndTime = end;
}
}
//--------------------------------------------------------------------------
// CleanUp (public)
//--------------------------------------------------------------------------
/**
* <p> Clean up all locally allocate memory
*/
void PRunBase::CleanUp()
{
if (fTheory) {
delete fTheory;
fTheory = 0;
}
}
//--------------------------------------------------------------------------
// CalculateKaiserFilterCoeff (protected)
//--------------------------------------------------------------------------
/**
* <p>Calculates the Kaiser filter coefficients for a low pass filter with
* a cut off frequency wc.
* For details see "Zeitdiskrete Signalverarbeitung", A.V. Oppenheim, R.W. Schafer, J.R. Buck. Pearson 2004.
*
* \param wc cut off frequency
* \param A defined as \f$ A = -\log_{10}(\delta) \f$, where \f$\delta\f$ is the tolerance band.
* \param dw defined as \f$ \Delta\omega = \omega_{\rm S} - \omega_{\rm P} \f$, where \f$ \omega_{\rm S} \f$ is the
* stop band frequency, and \f$ \omega_{\rm P} \f$ is the pass band frequency.
*/
void PRunBase::CalculateKaiserFilterCoeff(Double_t wc, Double_t A, Double_t dw)
{
Double_t beta;
Double_t dt = fData.GetTheoryTimeStep();
UInt_t m;
// estimate beta (see reference above, p.574ff)
if (A > 50.0) {
beta = 0.1102*(A-8.7);
} else if ((A >= 21.0) && (A <= 50.0)) {
beta = 0.5842*TMath::Power(A-21.0, 0.4) + 0.07886*(A-21.0);
} else {
beta = 0.0;
}
m = TMath::FloorNint((A-8.0)/(2.285*dw*TMath::Pi()));
// make sure m is odd
if (m % 2 == 0)
m++;
Double_t alpha = static_cast<Double_t>(m)/2.0;
Double_t dval;
Double_t dsum = 0.0;
for (UInt_t i=0; i<=m; i++) {
dval = TMath::Sin(wc*(i-alpha)*dt)/(TMath::Pi()*(i-alpha)*dt);
dval *= TMath::BesselI0(beta*TMath::Sqrt(1.0-TMath::Power((i-alpha)*dt/alpha, 2.0)))/TMath::BesselI0(beta);
dsum += dval;
fKaiserFilter.push_back(dval);
}
for (UInt_t i=0; i<=m; i++) {
fKaiserFilter[i] /= dsum;
}
}
//--------------------------------------------------------------------------
// FilterTheo (protected)
//--------------------------------------------------------------------------
/**
* <p>Filters the theory with a Kaiser FIR filter.
*/
void PRunBase::FilterTheo()
{
PDoubleVector theoFiltered;
Double_t dval = 0.0;
const PDoubleVector *theo = fData.GetTheory();
for (UInt_t i=0; i<theo->size(); i++) {
for (UInt_t j=0; j<fKaiserFilter.size(); j++) {
if (i<j)
dval = 0.0;
else
dval += fKaiserFilter[j]*theo->at(i-j);
}
theoFiltered.push_back(dval);
dval = 0.0;
}
fData.ReplaceTheory(theoFiltered);
// shift time start by half the filter length
dval = fData.GetTheoryTimeStart() - 0.5*static_cast<Double_t>(fKaiserFilter.size())*fData.GetTheoryTimeStep();
fData.SetTheoryTimeStart(dval);
theoFiltered.clear();
}