Compute common data quality metrics for accuracy, precision and data loss
for screen-based eye trackers. The package supports gaze input in screen pixels or
degrees and reports angular measures in degrees where appropriate. If you use this
package, please cite Niehorster, D.C., Nyström, M., Hessels, R.S., Benjamins, J.S.,
Andersson, R., and Hooge, I.T.C. (2026). The fundamentals of eye tracking, Part 7:
Determining data quality. Behavior Research Methods.