Here are some looks, plotted by Area of Interest over time. Those gray dots are mistracked data. They could not be mapped to an AOI.
Here is the same data, this time showing x position of the eyes onscreen as a function of time. Color corresponds to AOI assignment. Under normal circumstances, we should not see any mistracked data.
But somehow these missing data have an x location on screen. What happened is that the eyetracker recorded an x position but no y position.
These x-but-no-y looks (and vice versa) should be recoded as NAs. Be sure to add unit tests.
Here are some looks, plotted by Area of Interest over time. Those gray dots are mistracked data. They could not be mapped to an AOI.
Here is the same data, this time showing x position of the eyes onscreen as a function of time. Color corresponds to AOI assignment. Under normal circumstances, we should not see any mistracked data.
But somehow these missing data have an x location on screen. What happened is that the eyetracker recorded an x position but no y position.
These x-but-no-y looks (and vice versa) should be recoded as NAs. Be sure to add unit tests.