Knowledge Base

Action Units in the Log Files

Aim

To export the Action Units to a text file, Excel file or The Observer XT format file.

Prerequisites

• Your FaceReader license includes the Action Unit Module.
• Action Unit analysis is switched on in the Settings. See Analyze Action Units.
• You carried out an analysis.

Export Action Units as States

1. Choose File > Settings and then click the Data Export tab.
2. Under Export (Detailed log, ODX, N-Linx and API), select Action units. Do not select Export Action Units as continuous values. To export the unilateral Action Unit intensities, select the corresponding checkbox.
3. Choose File > Export and select one of the options. See Export the data in FaceReader's output.

The intensities are exported as letters to the detailed log.

The letters correspond to the following Action Unit intensities:

• Not active – [0.00 - 0.100]
• A – [0.100 - 0.217]
• B – [0.217 - 0.334]
• C – [0.334 - 0.622]
• D – [0.622 - 0.910]
• E – [0.910 - 1.000]

If you selected to export the unilateral Action Unit intensities, the Detailed log contains three columns for each Action Unit (the intensity on the left side of the face, on the right side and combined). The combined value is the maximum of the two.

Export Action Units as Continuous Values

You can also export Action Unit intensities as continuous values. To do so:

1. Choose File > Settings > Data export.
2. Under Export (Detailed log, ODX, N-Linx and API) select Action Units and Export Action Units as continuous values.
3. Choose File > Export and select one of the options. See Export the data in FaceReader's output.

If you selected to export the unilateral Action Unit intensities, the Detailed log contains three columns for each Action Unit (the intensity on the left side of the face, on the right side and combined). The combined value is the maximum of the two.

Action Unit Intensities in The Observer XT

If you send FaceReader data to The Observer XT 13 or higher versions using the N-Linx network communication protocol, Action Unit intensities are not transferred to The Observer XT as numerical values but as intensity classes.

See FaceReader with The Observer XT.

If you want to import the intensities as continuous values:

1. Select to Export action units as continuous values.
2. Export FaceReader log files, export the data as Detailed log.
3. Import the detailed logs as external data.

Source: FaceReader 10 Reference Manual (Help), Noldus Information Technology