HSTATIVARIAB = HSTATI (ID,ICASE,CHOICE,NUM)
Action:
This function of type REAL
returns the mean value, standard deviation
or number of equivalent events of a 1-dimensional distribution.
Underflows and overflows are not included in the calculation.
1
Mean value2
Standard deviation3
Number of equivalent events
HIDOPT(ID,'STAT')
STAT
has been called, the results are based on the
information stored at filling time.
Otherwise the results are based on the channel contents only.
If
and
represent the value and contents of event i, then
one has the following relations: