Update 'nTrackWeights.cpp'
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In this file, the sWeghts for data and MC are calculated and saved. The variables used to create weights are defined in [[GlobalFunctions.hh|GlobalFunctions.hh]] as `firstMCweight` and `secondMCweight`. The number of bins in the histograms, their names and range are also defined there. The main function that performs the weighting is [NtrackWeight()](#int-nstrackweight)
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In this file, the sWeghts for data and MC are calculated and saved. The variables used to create weights are defined in [[GlobalFunctions.hh|GlobalFunctions.hh]] as `firstMCweight` and `secondMCweight`. The number of bins in the histograms, their names and range are also defined there. The main function that performs the weighting is [NtrackWeight()](#int-nstrackweight). The weighting is called in [WeightYear()](#int-weightyear).
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## Table of Contents
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* [Functions and their parameters:](#functions-and-their-parameters)
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* [TH1D *get_hist_MC_w()](#th1d-get_hist_mc_w)
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* [TH1D *get_hist()](#th1d-get_hist)
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* [void getWeightHist()](#void-getweighthist)
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* [void fillWeightHist()](#void-fillweighthist)
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* [double getDelta_w2D()](#double-getdelta_w2d)
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* [int quickFitAll()](#int-quickfitall)
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* [int NtrackWeight()](#int-ntrackweight)
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* [int NtrackWeightAllKplus()](#int-ntrackweightallkplus)
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* [int WeightYear()](#int-weightyear)
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* [int WeightAll()](#int-weightall)
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* [int ReweightMCOnly()](#int-reweightmconly)
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* [int ReweightSignalMC()](#int-reweightsignalmc)
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* [int ReweightPHSPMC()](#int-reweightphspmc)
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* [int ReweightReferenceMC()](#int-reweightreferencemc)
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* [int ReweightAllMC()](#int-reweightallmc)
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* [int ReweightAll()](#int-reweightall)
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* [int GetSignalAndBckgndEstimation()](#int-getsignalandbckgndestimation)
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# Functions and their parameters:
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@ -62,7 +83,7 @@ Creates sWeights in data. Takes the model and performes B mass fit (see [[B mass
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* 0 if something fails, otherwise 1.
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### int NtrackWeight()
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Calculates and saves weights in the MC samples. User can deside whether to use weights only from a multiplicity variable or also use the second weighting variables.
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Calculates and saves weights in the MC samples. User can deside whether to use weights only from a multiplicity variable or also use the second weighting variables. It loads the first (and second) weighting variables into a histogram, calls [fillWeightHist()](#void-fillweighthist), fills new branches with the weights into new tuple which is saved.
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* **Parameters**
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* string year = "2011"
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* const bool ReferenceChannel = false
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@ -74,32 +95,36 @@ Calculates and saves weights in the MC samples. User can deside whether to use w
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* 0 if something fails, otherwise 1.
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### int NtrackWeightAllKplus()
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Calls [NtrackWeight()](#int-ntrackweight) for all years.
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* **Parameters**
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* const bool ReferenceChannel = false
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* bool PHSP = false
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* bool ReweightInBplusPT = true
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* **Return**
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* 0 if something fails, otherwise 1.
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*
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### int WeightYear()
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Performs [quickFitAll()](#int-quickfitall) and [NtrackWeight()](#int-ntrackweight) for given year.
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* **Parameters**
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* string year = "2011"
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* bool WeightBplusPT = true
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* bool GetShapeFromMC = true
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* bool sWeight = true
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* **Return**
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* 0 if something fails, otherwise 1.
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### int WeightAll()
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Calls [WeightYear()](#int-weightyear) for all years in the given run.
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* **Parameters**
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* bool WeightBplusPT = true
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* Int_t Run = 1
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* bool sWeight = true
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* **Return**
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* 0 if something fails, otherwise 1.
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### int ReweightMCOnly()
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Calls [NtrackWeight()](#int-ntrackweight) for given MC sample.
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* **Parameters**
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* string year = "2011"
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* bool ReferenceChannel = false
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@ -107,50 +132,57 @@ Calculates and saves weights in the MC samples. User can deside whether to use w
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* bool WeightBplusPT = true
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* bool sWeight = true
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* **Return**
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* 0 if something fails, otherwise 1.
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### int ReweightSignalMC()
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Calls [ReweightMCOnly()](#int-reweightmconly) for signal MC.
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* **Parameters**
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* bool WeightBplusPT = true
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* Int_t Run = 1
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* bool sWeight = true
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* **Return**
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* 0 if something fails, otherwise 1.
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### int ReweightPHSPMC()
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Calls [ReweightMCOnly()](#int-reweightmconly) for PHSP MC.
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* **Parameters**
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* bool WeightBplusPT = true
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* Int_t Run = 1
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* bool sWeight = true
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* **Return**
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* 0 if something fails, otherwise 1.
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*
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### int ReweightReferenceMC()
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Calls [ReweightMCOnly()](#int-reweightmconly) for reference MC.
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* **Parameters**
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* bool WeightBplusPT = true
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* Int_t Run = 1
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* bool sWeight = true
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* **Return**
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* 0 if something fails, otherwise 1.
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### int ReweightAllMC()
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Performs weighting of signal MC, PHSP MC and reference MC.
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* **Parameters**
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* bool WeightBplusPT = true
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* Int_t Run = 1
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* bool sWeight = true
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* **Return**
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* 0 if something fails, otherwise 1.
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### int ReweightAll()
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Calls [WeightAll()](#int-weightall) [ReweightAllMC()](#int-reweightallmc) for the given run.
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* **Parameters**
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* bool WeightBplusPT = true
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* Int_t Run = 1
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* bool sWeight = true
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* bool sWeig
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* 0 if something fails, otherwise 1.ht = true
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* **Return**
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### int GetSignalAndBckgndEstimation()
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Obsolete function that used to be used to get the signal nad background estimation.
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* **Parameters**
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* bool KshortDecaysInVelo = true
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* Int_t Run = 1 //assumes S = N - B
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* **Return**
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* 0 if something fails, otherwise 1.
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