class AliTPCCalROC: public TNamed

 Default constructor

 Constructor that initializes a given sector

 AliTPCCalROC copy constructor

 AliTPCCalROC destructor

 Stream an object of class AliTPCCalROC.

){

   Modify content of the object - raplace value by median in neighorhood

){


 
   Modify content of the class
   write LTM mean or median

 convolute the calibration with function fpad,frow
 in range +-4 sigma

 add c1 to each channel of the ROC

 multiply each channel of the ROC with c1

 multiply AliTPCCalROC roc by c1 and add each channel to the coresponing channel in the ROC
  - pad by pad

 multiply each channel of the ROC with the coresponding channel of 'roc'
     - pad by pad -

 divide each channel of the ROC by the coresponding channel of 'roc'
     - pad by pad -

 reset to ZERO

  returns the mean value of the ROC
  pads with value != 0 in outlierROC are not used for the calculation
  return 0 if no data is accepted by the outlier cuts

  returns the median value of the ROC
  pads with value != 0 in outlierROC are not used for the calculation
  return 0 if no data is accepted by the outlier cuts

  returns the RMS value of the ROC
  pads with value != 0 in outlierROC are not used for the calculation
  return 0 if no data is accepted by the outlier cuts

  returns the LTM and sigma
  pads with value != 0 in outlierROC are not used for the calculation
  return 0 if no data is accepted by the outlier cuts

 make 1D histo
 type -1 = user defined range
       0 = nsigma cut nsigma=min
       1 = delta cut around median delta=min

 make 2D histo
 type -1 = user defined range
       0 = nsigma cut nsigma=min
       1 = delta cut around median delta=min

 Make Histogram with outliers
 mode = 0 - sigma cut used
 mode = 1 - absolute cut used
 fraction - fraction of values used to define sigma
 delta - in mode 0 - nsigma cut
            mode 1 - delta cut

 create histogram with values and draw it

 example function to show functionality and test AliTPCCalROC

 MakeLocalFit - smoothing
 returns a AliTPCCalROC with smoothed data
 rowRadius and padRadius specifies a window around a given pad.
 The data of this window are fitted with a parabolic function.
 This function is evaluated at the pad's position.
 At the edges the window is shifted, so that the specified pad is not anymore in the center of the window.
 rowRadius  -  radius - rows to be used for smoothing
 padradius  -  radius - pads to be used for smoothing
 ROCoutlier -  map of outliers - pads not to be used for local smoothing
 robust     -  robust method of fitting  - (much slower)
 chi2Threshold: Threshold for chi2 when EvalRobust is called
 robustFraction: Fraction of data that will be used in EvalRobust

 AliTPCCalROC::GetNeighbourhoodValue - smoothing - PRIVATE
 in this function the fit for LocalFit is done

 AliTPCCalROC::GetNeighbourhood - PRIVATE
 in this function the window for LocalFit is determined

 Makes a  GlobalFit for the given secotr and return fit-parameters, covariance and chi2
 The origin of the fit function is the center of the ROC!
 fitType == 0: fit plane function
 fitType == 1: fit parabolic function
 ROCoutliers - pads with value !=0 are not used in fitting procedure
 chi2Threshold: Threshold for chi2 when EvalRobust is called
 robustFraction: Fraction of data that will be used in EvalRobust
 err: error of the data points

 Create ROC with global fit parameters
 The origin of the fit function is the center of the ROC!
 loop over all channels, write fit values into new ROC and return it