11 #ifndef ROOT_TSpectrumFit 12 #define ROOT_TSpectrumFit Double_t Shape(Int_t num_of_fitted_peaks, Double_t i, const Double_t *parameter, Double_t sigma, Double_t t, Double_t s, Double_t b, Double_t a0, Double_t a1, Double_t a2)
This function calculates peaks shape function (see manual) Function parameters:
Double_t fAlpha
convergence coefficient, input parameter, it should be positive number and <=1, for details see refer...
Double_t * GetAmplitudes() const
Double_t * fAreaErr
[fNPeaks] array of errors of peak areas
virtual ~TSpectrumFit()
Destructor.
Bool_t fFixSigma
logical value of sigma parameter, which allows to fix the parameter (not to fit). ...
Double_t Derpb(Double_t a, Double_t sigma, Double_t t, Double_t b)
This function calculates derivative of the area of peak according to b parameter. ...
void SetPeakParameters(Double_t sigma, Bool_t fixSigma, const Double_t *positionInit, const Bool_t *fixPosition, const Double_t *ampInit, const Bool_t *fixAmp)
This function sets the following fitting parameters of peaks:
Double_t * fAmpInit
[fNPeaks] array of initial values of peaks amplitudes, input parameters
Int_t fXmax
last fitted channel
Double_t * fPositionCalc
[fNPeaks] array of calculated values of fitted positions, output parameters
Double_t Area(Double_t a, Double_t sigma, Double_t t, Double_t b)
This function calculates area of a peak Function parameters:
void StiefelInversion(Double_t **a, Int_t rozmer)
This function calculates solution of the system of linear equations.
Int_t fFitTaylor
order of Taylor expansion, possible values kFitTaylorOrderFirst, kFitTaylorOrderSecond. It applies only for Awmi fitting function.
Int_t fStatisticType
type of statistics, possible values kFitOptimChiCounts (chi square statistics with counts as weightin...
Double_t Dert(Int_t num_of_fitted_peaks, Double_t i, const Double_t *parameter, Double_t sigma, Double_t b)
This function calculates derivative of peaks shape function (see manual) according to relative amplit...
Int_t fPower
possible values kFitPower2,4,6,8,10,12, for details see references. It applies only for Awmi fitting ...
Double_t Derpsigma(Double_t a, Double_t t, Double_t b)
This function calculates derivative of the area of peak according to sigma of peaks.
Double_t * GetAreasErrors() const
Double_t * fPositionErr
[fNPeaks] array of position errors
Double_t fTErr
error value of t parameter
void GetTailParameters(Double_t &t, Double_t &tErr, Double_t &b, Double_t &bErr, Double_t &s, Double_t &sErr)
This function gets the tail parameters and their errors.
Double_t fA0Init
initial value of background a0 parameter(backgroud is estimated as a0+a1*x+a2*x*x) ...
Bool_t fFixS
logical value of s parameter, which allows to fix the parameter (not to fit).
Int_t fAlphaOptim
optimization of convergence algorithm, possible values kFitAlphaHalving, kFitAlphaOptimal ...
#define ClassDef(name, id)
The TNamed class is the base class for all named ROOT classes.
Double_t fA1Calc
calculated value of background a1 parameter
Double_t fA2Init
initial value of background a2 parameter(backgroud is estimated as a0+a1*x+a2*x*x) ...
void SetBackgroundParameters(Double_t a0Init, Bool_t fixA0, Double_t a1Init, Bool_t fixA1, Double_t a2Init, Bool_t fixA2)
This function sets the following fitting parameters of background:
Double_t * fPositionInit
[fNPeaks] array of initial values of peaks positions, input parameters
Double_t Dera2(Double_t i)
Derivative of background according to a2.
Double_t fSigmaCalc
calculated value of sigma parameter
Int_t fNumberIterations
number of iterations in fitting procedure, input parameter, it should be > 0
Double_t Derfc(Double_t x)
This function calculates derivative of error function of x.
Double_t fSCalc
calculated value of s parameter
Double_t fChi
here the fitting functions return resulting chi square
Double_t fA2Err
error value of background a2 parameter
Bool_t fFixB
logical value of b parameter, which allows to fix the parameter (not to fit).
Double_t fA1Init
initial value of background a1 parameter(backgroud is estimated as a0+a1*x+a2*x*x) ...
Double_t fTInit
initial value of t parameter (relative amplitude of tail), for details see html manual and references...
Double_t fSErr
error value of s parameter
Double_t fBCalc
calculated value of b parameter
Double_t * fAmpErr
[fNPeaks] array of amplitude errors
Double_t Dersigma(Int_t num_of_fitted_peaks, Double_t i, const Double_t *parameter, Double_t sigma, Double_t t, Double_t s, Double_t b)
This function calculates derivative of peaks shape function (see manual) according to sigma of peaks...
Int_t fXmin
first fitted channel
Double_t fBInit
initial value of b parameter (slope), for details see html manual and references
Double_t Erfc(Double_t x)
Double_t fBErr
error value of b parameter
Double_t * GetPositions() const
Double_t * GetAmplitudesErrors() const
Double_t Deramp(Double_t i, Double_t i0, Double_t sigma, Double_t t, Double_t s, Double_t b)
This function calculates derivative of peak shape function (see manual) according to amplitude of pea...
Double_t fA1Err
error value of background a1 parameter
void SetFitParameters(Int_t xmin, Int_t xmax, Int_t numberIterations, Double_t alpha, Int_t statisticType, Int_t alphaOptim, Int_t power, Int_t fitTaylor)
This function sets the following fitting parameters:
Double_t Deri0(Double_t i, Double_t amp, Double_t i0, Double_t sigma, Double_t t, Double_t s, Double_t b)
This function calculates derivative of peak shape function (see manual) according to peak position...
Bool_t fFixA0
logical value of a0 parameter, which allows to fix the parameter (not to fit).
Double_t Derpa(Double_t sigma, Double_t t, Double_t b)
This function calculates derivative of the area of peak according to its amplitude.
Double_t Ders(Int_t num_of_fitted_peaks, Double_t i, const Double_t *parameter, Double_t sigma)
This function calculates derivative of peaks shape function (see manual) according to relative amplit...
Double_t * GetPositionsErrors() const
Double_t fA0Err
error value of background a0 parameter
Int_t fNPeaks
number of peaks present in fit, input parameter, it should be > 0
Double_t Dera1(Double_t i)
Derivative of background according to a1.
Double_t Derderi0(Double_t i, Double_t amp, Double_t i0, Double_t sigma)
This function calculates second derivative of peak shape function (see manual) according to peak posi...
Double_t Derdersigma(Int_t num_of_fitted_peaks, Double_t i, const Double_t *parameter, Double_t sigma)
This function calculates second derivative of peaks shape function (see manual) according to sigma of...
Double_t Derpt(Double_t a, Double_t sigma, Double_t b)
This function calculates derivative of the area of peak according to t parameter. ...
Bool_t * fFixPosition
[fNPeaks] array of logical values which allow to fix appropriate positions (not fit). However they are present in the estimated functional
Bool_t * fFixAmp
[fNPeaks] array of logical values which allow to fix appropriate amplitudes (not fit). However they are present in the estimated functional
Double_t fSInit
initial value of s parameter (relative amplitude of step), for details see html manual and references...
Double_t * GetAreas() const
TSpectrumFit(void)
Default constructor.
void SetTailParameters(Double_t tInit, Bool_t fixT, Double_t bInit, Bool_t fixB, Double_t sInit, Bool_t fixS)
This function sets the following fitting parameters of tails of peaks.
Double_t Ourpowl(Double_t a, Int_t pw)
Power function.
Advanced 1-dimensional spectra fitting functions.
you should not use this method at all Int_t Int_t Double_t Double_t Double_t Int_t Double_t Double_t Double_t Double_t b
Double_t Derb(Int_t num_of_fitted_peaks, Double_t i, const Double_t *parameter, Double_t sigma, Double_t t, Double_t b)
This function calculates derivative of peaks shape function (see manual) according to slope b...
void GetBackgroundParameters(Double_t &a0, Double_t &a0Err, Double_t &a1, Double_t &a1Err, Double_t &a2, Double_t &a2Err)
This function gets the background parameters and their errors.
Double_t * fArea
[fNPeaks] array of calculated areas of peaks
Double_t fSigmaInit
initial value of sigma parameter
Double_t fA2Calc
calculated value of background a2 parameter
Double_t fA0Calc
calculated value of background a0 parameter
Double_t fTCalc
calculated value of t parameter
void GetSigma(Double_t &sigma, Double_t &sigmaErr)
This function gets the sigma parameter and its error.
void FitAwmi(Double_t *source)
This function fits the source spectrum.
void FitStiefel(Double_t *source)
This function fits the source spectrum.
Double_t * fAmpCalc
[fNPeaks] array of calculated values of fitted amplitudes, output parameters
Double_t fSigmaErr
error value of sigma parameter
Bool_t fFixT
logical value of t parameter, which allows to fix the parameter (not to fit).
Bool_t fFixA1
logical value of a1 parameter, which allows to fix the parameter (not to fit).
Bool_t fFixA2
logical value of a2 parameter, which allows to fix the parameter (not to fit).