class HParticleRunningMeanI: public TObject

_HADES_CLASS_DESCRIPTION

 Calculate running mean of a distribution of integer values e.g. multiplicities.
 calculate the sigma (RMS) of the distribution.
 A cutoff at a maximum value is defined as mean value plus sigma * a scaling factor.
 A minimum value can be specified as well (default = 1).
 If the mean value gets below 1, the cutoff value is calculated by (minimum value + 1) + scaling factor*(sigma=1)
 instead of mean value + sigma* scaling factor.
 This allows for recovery from large sets with input values of 0 (e.g. sparks).
 It accounts as well for the fact that input values are integer (0 or 1 or 2 ...), thus cutoff values must be > 1.
 The array size used for averaging can be specified in initParam (default = 2000).
 The values of the distribution have to be >= 0
 add an offset if the original distibution extends to negative values
 W. Koenig April 2015