User`s guide

Remarks
Send CALCulate:FUNCtion AVERage to enable statistics. When statistics
are enabled, the average (mean), minimum, maximum, peak-to-peak,
count, and standard deviation values are calculated and carried in the
statistical data registers, available to be read with the statistics
(CALCulate:AVERage) commands such as CALCulate:AVERage:AVERage?
and CALCulate:AVERage:SDEViation?.
The CALCulate subsystem (math operations) must be enabled using the
CALCulate:STATe command.
The instrument clears the calculation function selection, reverting to the
default after a Factory Reset (*RST command) or an Instrument Preset
(SYSTem:PRESet command).