Agilent Technologies 4294A Operating Manual page 291

Analysis and Processing of Result
Save and Recall the Agilent 4294A Internal Data
Data contents saved in the trace data
Depending on the specified measurement parameter, the contents saved in the trace data
vary. The data array (Data Real and Data Imag) are always used to save the R and X values
(data before the measurement parameter conversion or data operation). The data trace array
(Data Trace Real and Data Trace Imag) is used to save the data displayed on the screen
after the measurement parameter conversion and data operation, in other words, the value
of the specified measurement parameter. Part with no data (indicated with - in the table)
contains 0 (actually, 0.000000e+00).
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