Keysight 53230A - Page 215

53220A/53230A Math, Graphing, and Data Logging 6
Keysight 53220A/53230A User’s Guide 215
Enabling statistics
Before statistical calculations are performed they must be enabled using the
command:
CALCulate[1]:AVERage:STATe {OFF|ON}
CALCulate[1]:AVERage[:STATe]? (query form)
ON - enables statistical calculations on the readings as they occur. Statistical data
includes: mean, standard deviation, Allan deviation, maximum value, minimum
value, and average peak-to-peak value.
OFF - disables statistics computation.
Following a reset (*RST) or instrument preset (SYSTem:PRESet), statistical
computations are disabled.
Reading count
Statistical calculations start when Math and the Statistics function are enabled. The
number of readings on which a given set of statistics are based is shown as the
Count value (Figure 6-3). The count can also be queried with the command:
CALCulate[1]:AVERage:COUNt:CURRent?
The count can be read at any time after the measurements have been initiated (i.e.
INITiate:IMMediate, READ?, MEASure?).
Following a reset (*RST) or instrument preset (SYSTem:PRESet), the count is set
to ‘1’.
Mean, standard deviation, minimum value, maximum value
The mean (average), standard deviation, minimum value, and maximum value for
the current reading count can be determined with the command:
CALCulate[1]:AVERage:ALL?
If the readings have been scaled (see “Scaling functions”), the statistics are based
on the scaled readings.