Determining The Mean, Standard Deviation, And P-P Of The Trace - Agilent Technologies ENA Series User Manual

Data Analysis
Analyzing Data on the Trace Using the Marker

Determining the Mean, Standard Deviation, and p-p of the Trace

You can easily determine the statistics data for a trace (mean, standard deviation, and
peak-to-peak). Figure 6-10 and Table 6-2 show the definitions for the statistics data
elements.
Figure 6-10 Parameters Used for Calculating Statistics Data
Table 6-2 Definitions of Statistics Data
Statistics data element
Mean (
Standard deviation (
Peak-to-peak (
Displaying Statistics Data
Step 1. Press
which statistics data is required.
Step 2. Press
Step 3. Press
142
)
mean
)
s. dev
)
p - p
(or
.
to turn on the display of statistics data.
Statistics
Definition
n
å
x
i
i = 1
------------- -
n
(n: number of points; x : i measured value at the ith
i
measurement point)
n
2
å
á ñ
x – mean
i
i = 1
----------------------------------------- -
n 1 –
(n: number of points; x : F i measured value at the ith
i
measurement point mean: Mean)
Max Min –
(Max: greatest measured value; Min: smallest measured
value
) and (or ) to activate the trace for
Chapter 6