Mean Trace Data; Query The Signal Peaks - HP ESA-E Series Programmer's Manual

Language Reference
TRACe Subsystem
is equivalent to : (trace 2 = trace 1 + trace 3)

Mean Trace Data

:TRACe:MATH:MEAN? <trace>
Returns the mean of the amplitudes of the trace amplitude elements in
measurement units.
Traces are: TRACE[1|2|3]

Query the Signal Peaks

:TRACe:MATH:PEAK[:DATA]?
Outputs the signal peaks by frequency or by amplitude. The sort mode
is determined by the command :TRACe:MATH:PEAK:SORT. The
commands :CALCulate:MARKer:PEAK:EXCursion and
:CALCulate:MARKer:PEAK:THReshold are used to determine what is
a signal peak. To get the number of signals found meeting the specified
limits, use the query :TRACe:MATH:PEAK:POINts?
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