Agilent Technologies 1670E Series, User Manual

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System Performance Analysis (SPA) Software
System Performance Analysis Software
Interpreting the histogram display. Press the blue shift key and
Run to start the State Histogram acquisition. The relative activity over
the ranges you defined is displayed as histograms (see the figure on the
previous page). The total samples field shows the total number of data
samples displayed in all of the ranges. The number of samples for each
range is displayed to the left of each histogram.
The percentage amounts of the histograms total 100% (note the scale
at the bottom of the display). If they add up to more than 100%, you
have overlapped two or more ranges, and the data samples are being
counted in multiple ranges.
The analyzer will continue to sample, sort the data, and update the
display until you press Stop or change a display variable.
Other States included/excluded. The histograms show the relative
distribution of activity over the ranges you have defined. In most cases,
the ranges will not cover the full range of the label you chose to
monitor.
To view the activity over the entire range of the label, including activity
not covered by the ranges, select the Other States field and change it to
included. Another histogram bar called "other" will appear at the
bottom of the display. This will show activity not covered by the ranges.
You can toggle included/excluded if the analyzer is stopped or if it is
running because it only affects the display and not the accumulated
data that has been acquired.
Note that changing between included and excluded changes the
absolute sizes of the histograms. Unless you have defined overlapping
ranges, the total percentage size of the all the range histograms plus
the histogram for other should equal 100%.