class AliPHOSPIDv1: public AliPHOSPID

 default ctor

 ctor

ctor with the indication on where to look for the track segments

 dtor

 Initialize PID parameters

 Steering method to perform particle reconstruction and identification
 for the event range from fFirstEvent to fLastEvent.

Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance),
this method returns a density probability of this parameter, given by a gaussian
function whose parameters depend with the energy  with a function: a/(x*x)+b/x+b
Float_t xorg = x;

Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance),
this method returns a density probability of this parameter, given by a gaussian
function whose parameters depend with the energy like second order polinomial

Get file name that contains the PCA for a particle ("photon or pi0")

 Get the i-th parameter "Calibration"

 Get the i-th parameter "CPV-EMC distance" for the specified axis

 Get CpvtoEmcDistance Cut depending on the cluster energy, axis and
 Purity-Efficiency point

 Calculates the parameter param of the ellipse

 Get the parameter "i" to calculate the boundary on the moment M2x
 for photons at high p_T

 Get the parameter "i" to calculate the boundary on the moment M2x
 for pi0 at high p_T

 Get TimeGate parameter depending on Purity-Efficiency i:
 i=0 - Low purity, i=1 - Medium purity, i=2 - High purity

 Get the parameter "i" that is needed to calculate the ellipse
 parameter "param" for the particle "particle" ("photon" or "pi0")

Calculates the pid bit for the CPV selection per each purity.

Is the particle inside de PCA ellipse?

 Set bit for identified hard photons (E > 30 GeV)
 if the second moment M2x is below the boundary

 Set bit for identified hard pi0  (E > 30 GeV)
 if the second moment M2x is above the boundary

 Calculates the momentum direction:
   1. if only a EMC RecPoint, direction is given by IP and this RecPoint
   2. if a EMC RecPoint and CPV RecPoint, direction is given by the line through the 2 recpoints
  However because of the poor position resolution of PPSD the direction is always taken as if we were
  in case 1.

Given the energy x and the parameter y (tof, shower dispersion or cpv-emc distance),
this method returns a density probability of this parameter, given by a landau
function whose parameters depend with the energy  with a function: a/(x*x)+b/x+b

 construct the PID weight from a Bayesian Method

 Makes a RecParticle out of a TrackSegment

 Print the parameters used for the particle type identification

 Print table of reconstructed particles

 PCA : To do the Principal Components Analysis it is necessary
 the Principal file, which is opened here

 Set parameter "Calibration" i to a value param

 Set the parameters to calculate Cpv-to-Emc Distance Cut depending on
 Purity-Efficiency point i

 Set parameter "Hard photon boundary" i to a value param

 Set parameter "Hard pi0 boundary" i to a value param

 Set the parameter TimeGate depending on Purity-Efficiency point i

 Set the parameter "i" that is needed to calculate the ellipse
 parameter "param" for a particle "particle"

 Sets values for the initial population of each particle type

 Gets values for the initial population of each particle type

Get file name that contain PID parameters

Do bayesian PID

Switch to "on flyght" mode, without writing to TreeR and file