# The Experiment log file

The Experiment log file is started at the moment a GLP experiment is created. Changes made by the user that affect the data and results of an experiment can be traced back in the log file.

These changes are logged from the moment you actually start acquiring data. At that moment a snapshot is taken of the various settings in your experiment and this snapshot is logged. Thereafter, all changes that can affect your data are logged.

When a users makes changes to settings (for example, in the Trial List or Trail Control Settings) and/or leaving a Setting, the user is prompted to add a comment to the Experiment log file. A new snapshot is then taken when new data are acquired. When the user cancels this automatic pop-up or does not enter a comment, a line appears in the Experiment log file with user name, date and time but without a comment.

To add a comment to the Experiment log file

1.Choose File > Add log comment (Ctrl+L).

2.Type in comments and click OK.

To view the experiment log file

Before you can view an experiment log file, you need to open the corresponding experiment. To view the experiment log file in EthoVision XT:

1.Choose File > GLP Log Files.

2.In the GLP log window, select the experiment log file radio button. If necessary, click on one of the html links to go to a specific part of the Experiment log file.

To delete the Experiment log file

You can only clear the contents of the Experiment log file, not delete it. You can only clear the Experiment log file when you have the user management right to Delete Trials and Clear Log.

1.Choose File > GLP Log Files.

2.Select Experiment log file and click the Clear Log button.

To export the experiment log file

1.Choose File > GLP Log Files, and click the Export button, or in the Experiment Explorer, under Export, click GLP Log.

2.Select Experiment log file.

3.Browse to the folder where you want to export the log file to and click OK.

Notes

▪In the case of large experiments, when the log file exceeds a size of 1 Mb, it is split in multiple log files.

▪The export format is HTML (*.html). The name of the export file is GLP-[Experiment name](n), where n is a progressive number.

▪Experiment Settings, Arena Settings, Trial list, Trial Control Settings and Detection Settings are not stored in the log file until the first data are acquired. After that, only changes are logged.

▪Logged Arena Settings include a screenshot of Arenas and their Calibrations. It also contains a screenshot of each Zone Group and its Zones.

▪If your current experiment is not set for Quality Assurance, there is no Experiment log file present.

▪The suggested export location is the experiment’s Export Files folder.