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Shifting the start time of all DataSets to 00:00:00:00 is the quickest way to sync all DataSets.

Example: If your sessions are stored in the same video file, the first session starts at 00:00:00:00 and the next session starts after the first session ended, let's say at 00:30:00:00. In the Timeline Chart, those DataSets appear on a very stretched time scale.

This makes it hard to compare the first 2 minutes of each session.

The fastest way to synchronize the start time of multiple DataSets, is to virtually set the start time of all DataSets to 00:00:00:00. INTERACT offers a command to perform that operation automatically. This command does not regard any specific Events:

▪Click Transform - DataSets - Time Shifts > Shift to Zero .

INTERACT enters a DataSetOffset command into the transcription area of each DataSet, virtually setting the start time of each DataSet to zero, like this:

•In DataSet 1: DataSetOffset100ns 238800000> 0 (reflects 00:00:23:22 = 0)

•In DataSet 2: DataSetOffset100ns 48400000 > 0 (reflects 00:00:04:21 = 0)

Rebuild the Timeline Chart to see the results:

▪Click Analysis - Evaluation - Timeline Chart , to recreate your Timeline Chart.

▪Click Align on Zero, to hide all Events that now lay virtually before zero. This is important to get the correct statistics.

IMPORTANT: Only if you click the Align on Zero icon  (to hide all Events logged before the new, shifted start time) those preliminary Events are no longer present in the statistics!

Because the Code 'Call dolphins' was the first Code coded in DataSet 2, this Code now appears directly at the start, whereas for DataSet 1 other Codes where coded first.

Note: This command is of no use if you want to synchronize certain Codes, but is very useful to compare DataSets that have been logged with totally different (start) times.