Compute scanpath geometry features by subject and trial — compute_gazepoint_scanpath_geometry • gp3tools

Computes scanpath length, straight-line distance, efficiency, convex-hull area, and spatial dispersion from sequential gaze/fixation coordinates.

Usage

compute_gazepoint_scanpath_geometry(
  data,
  x,
  y,
  subject,
  trial,
  time = NULL,
  condition = NULL
)

Arguments

data: A data frame.
x: X-coordinate column.
y: Y-coordinate column.
subject: Subject column.
trial: Trial column.
time: Optional time column used for ordering.
condition: Optional condition column to carry forward.

Value

A trial-level data frame of scanpath geometry features.