Create a Fixation Group Object

This function creates a fixation group object containing fixation data with x/y coordinates, duration, onset times, and an optional group index.

Usage

fixation_group(x, y, duration, onset, group = 0)

Arguments

x

A numeric vector of x-coordinates for each fixation.

y

A numeric vector of y-coordinates for each fixation.

duration

A numeric vector of fixation durations. If missing, computed from onset differences.

onset

A numeric vector of fixation onset times.

group

An optional group identifier (default is 0).

Value

A tibble of class "fixation_group" with columns: index, x, y, duration, onset, group_index.

Examples

fg <- fixation_group(x = c(100, 200, 300), y = c(100, 150, 200),
                     onset = c(0, 200, 400), duration = c(200, 200, 200))