merge_adjacent_fixations: Merge adjacent fixations

In kollaR: Event Classification, Visualization and Analysis of Eye Tracking Data

Merge adjacent fixations

Description

Merge fixations which appear close in space and time. This function is called by other functions and typically not used outside them

Usage

merge_adjacent_fixations(
  fixations,
  gaze_raw,
  distance.threshold = 0.5,
  ms.threshold = 75,
  one_degree = 40,
  xcol = "x.raw",
  ycol = "y.raw"
)

Arguments

fixations	Data frame with fixations
gaze_raw	Data matrix with raw data. See description of the algorithm_ivt function
distance.threshold	Subsequent fixations occurring withing this distance are merged. Set to 0 if you don't want to merge fixations.
ms.threshold	Maximum time elapsed between fixations to be merged.
one_degree	One degree of the visual field in the scale of the x and y coordinates. Typically pixels or proportion of the screen. Make sure the setting matches your data.
xcol	X coordinates in the raw gaze data matrix (gaze_raw)
ycol	Y coordinates in the raw gaze data matrix (gaze_raw)

Value

A new data frame with fixations

kollaR documentation built on June 8, 2025, 10:03 a.m.