Hi, I'm trying to do a text export of pupil size on a session I ran in Tobii Studio & have been unable to  get any data - the columns are either blank or listed as a -1.  I'm able to get fixation counts, durations, and the track is there in the replay, but i haven't gotten the pupil size variable to show up even while switching around various ...

Hello Ivan,Information on the Validity Codes can be found in the Online Manual that can be reached from within Tobii Studio by clicking on the blue question mark button. Under the Text Export headline you can find the following information:''The validity code ranges from 0 to 4, with the following interpretations for each value:0 The ...