Function reference • eyer

Object Definitions
`EyerObject()`	Returns empty eyer object
`AreaObject()`	Defines AreaObject
`is_valid_eyer()`	Returns if passed object is valid eyer object
`load_eyer_data()`	Loads data from a folder. Loads preprocessed events, gaze and fixations files
`is.eyer()`	Is obj eyer object?
Preprocessing Preprocessing of the
`add_area_column()`	Add area column to object data
`change_resolution()`	Approximates x, y resolution from given coordinates to designated
`remove_out_of_bounds()`	Removes points out of resolution boundary
`remove_out_of_bounds(<eyer>)`	Removes points out of resolution boundary
`downsample()`	Downsamples data
`downsample(<eyer>)`	Downsamples eyer gaze data
`flip_axis()`	Flips the given axis to its negative
`recalibrate_eye_data()`	Recalibrates eyetracking data
`save_eyer()`	Saving eyer object into raw or parsed structure
Getters
`filter_times()`	Filters data between start and end time
`filter_times(<eyer>)`	Filters data between start and end time
Analysis Analytical function to provide summative output
`analyse_gaze_areas()`	Analyses number of gaze points in each area
`analyse_fixation_areas()`	Analyses time spent in each area
Visualisations
`plot_fixations()`	Plot fixations data
`plot_fixations(<eyer>)`	Plot fixations and their durations
`plot_gaze()`	Plots gaze data
`plot_gaze(<eyer>)`	Plots gaze data
`plot_gaze_heatmap()`	Plot heatmap of gaze information
`plot_gaze_heatmap(<eyer>)`	Plot heatmap of gaze information
`plot_eye_heatmap()`	Generic function to plot eye heatmap
`geom_eyer_monitor()`	Plots monitor boundaries around data
Custom geoms ggplot geoms to plot data
`geom_monitor_boundaries()`	Plots monitor boundaries
`geom_area_boundaries()`	Plots area boundaries
Synchronization Functions to synchronize eyetracker data with other experimental data
`eye_synchro_acceptable()`	This function decides whether the list is acceptable
`eye_to_unity_times()`	replaces eyetracker_times for quest_times
`find_better_match()`	Returns either a list with best synchronised event or NULL if none is found
`find_group_match()`	tries to find a sequency of N elements in eye_durations that correspond to the synchro durations returns index of first matchin eye event
`find_preprocessed_files()`	returns filepaths of preprocessed fixations and events
`try_fit_event()`	Returns a data frome with synchronising times for each set Table is in format of set_id, time_eyetracker, time_unity
Generic helpers Helper functions
`remove_out_of_bounds(<data.frame>)`	Removes points out of resolution boundary

Reference

Object Definitions

Preprocessing

Getters

Analysis

Visualisations

Custom geoms

Synchronization

Generic helpers

Contents