Instruction manual

5 Analysis 75
• Copying values and their headings to the Journal via the Add Title to Jrnl and Add Data to Jrnl
functions in the Right-Click menu of the Analysis window.
Auto Find Dialog
Window
The Auto Find dialog window (Figure 5-10 on page 75) is like the Find window. It is also
accessible from the Tools menu and works only from the Analysis or ScopeView window.
However, the Auto Find function can be programmed to find multiple data points with the same
parameters within a data selection. The values at those points can be used for Second Kind
Analyses and the results of these analyses can be written to the Journal automatically.
The Auto Find function can find the same types of data points found with the Find function,
like: Next Maximum, Previous Minimum, Data Above a given value, the next Mark containing
a particular alpha-numeric string, and more. Like Find routines, Auto Find routines may be
constructed from the various parameters available and saved in the Auto Find folder. For
periodic functions, maximum values, and minimum values, DataTrax2 uses the threshold values
set for Periodic data on the Functions page in the Preferences dialog window for the Main
window. Just like other measurements of periodic data, the data must be scaled properly, which
can be accomplished in most cases by clicking the AutoScale button in the Main window.
Auto Find
Example
As an example, the Auto Find routine can be used to place cursors on all the R waves in an
ECG record and to measure the period (T2-T1) of each beat. The easiest way to begin the Auto
Find routine is to manually place the cursors on the two successive R waves at the beginning of
the record. When selecting the commands to use in this routine, the user should ask
themselves: “Where are the next two data points that are needed for measuring the next period
(T2-T1)?” The answer is that the first data point in the next period is the second R wave from the
preceding period, and the second R wave in the next period is the next maximum value or R
wave in succession. Therefore, to make accurate measurements on the next period, the Auto
Find window is programmed to set the Cursor 1 Position to be Old Cursor 2 and the Cursor 2
Position to be the Next Max.
Figure 5-10: The Auto Find dialog window.