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Tag gaze coordinates as on/off screen

Source: R/pipeline-confounds.R
tag_gaze_coords.Rd

Identifies when gaze coordinates fall outside the screen boundaries, with an optional buffer zone to account for potential overshoot in eye tracking.

Usage

tag_gaze_coords(pupil_df, screen_width, screen_height, overshoot_buffer = 0.05)

Arguments

pupil_df

A data frame containing gaze coordinates

screen_width

The screen width in pixels

screen_height

The screen height in pixels

overshoot_buffer

Additional buffer zone beyond screen edges (default: 0.05). Expressed as proportion of screen size. For example, 0.05 means 5% beyond screen edges will still be considered "on screen"

Value

A data frame with added column:

  • is_offscreen: Logical indicating if gaze is outside screen boundaries