Knowledge Base

Clear Trials in the Trial List

Aim

To delete the tracks, the associated data and the recorded videos of one or more trials, but leave those trials as empty rows in the Trial List, so you can redo those trials at a later time.

Important: When you clear a trial, the data scored manually (Manual Scoring log), the events of Trial Control and the hardware events associated with the trial are deleted.

Note: Clear Trials is not the same as Delete Trials. When you delete a trial, the tracks are deleted and the corresponding row is removed from the Trial List.

Procedure

1. Right-click the name of the trial that you want to clear and select Clear Trials.
2. Choose one of the options that appear. These depend on whether you tracked from external video files or live (+ save video).

   When tracking from external video files:

   • Clear tracks. The tracks are deleted. In the Trial List, the link to the video file used for tracking located in the System - Video File column is removed. Choose this option if you want to redo the trial using a video file different from the current one.
   • Clear tracks but re-use the video reference. As above, however the link to the video file is retained. You can open Acquisition to track from that video file.

   When tracking live (and optionally saving video):

   • Clear tracks. The tracks are deleted. This option is available if you acquired tracks without saving video.
   • Clear tracks but re-use the video. To delete the tracks, not the video file used to acquire those tracks. You can then track again from the video file.
   • Clear tracks and video. To delete the tracks and the associated video and redo the trial anew.
   • Clear video. To clear a trial that has video only (its current status is Postponed). You can then record a new video and acquire tracks.

Notes

• When you clear a trial, the Arena Settings, Trial Control Settings and Detection Settings that were selected in the Trial List are retained.

See Also

• Redo a Trial
• Skip Trials
• Skip Arenas Within a Trial

Source: EthoVision XT 19 Help - Trial List, Noldus Information Technology