make_switch_data: Summarize data into time-to-switch from initial AOI.

In eyetrackingR: Eye-Tracking Data Analysis

Summarize data into time-to-switch from initial AOI.

Description

Take trials split by initial-AOI, and determine how quickly participants switch away from that AOI

Usage

make_switch_data(data, predictor_columns, summarize_by)

## S3 method for class 'onset_data'
make_switch_data(data, predictor_columns = NULL, summarize_by = NULL)

Arguments

data	The output of make_onset_data
predictor_columns	Variables/covariates of interest when analyzing time-to-switch
summarize_by	Should the data be summarized along, e.g., participants, items, etc.? If so, give column name(s) here. If left blank, will leave trials distinct. The former is needed for more traditional analyses (t.tests, ANOVAs), while the latter is preferable for mixed-effects models (lmer)

Value

A dataframe indicating initial AOI and time-to-switch from that AOI for each trial/subject/item/etc.

Methods (by class)

• make_switch_data(onset_data):

Examples

## Not run: 
data(word_recognition)
data <- make_eyetrackingr_data(word_recognition, 
                               participant_column = "ParticipantName",
                               trial_column = "Trial",
                               time_column = "TimeFromTrialOnset",
                               trackloss_column = "TrackLoss",
                               aoi_columns = c('Animate','Inanimate'),
                               treat_non_aoi_looks_as_missing = TRUE
)
response_window <- subset_by_window(data, window_start_time = 15500, window_end_time = 21000, 
                                    rezero = FALSE)
inanimate_trials <- subset(response_window, grepl('(Spoon|Bottle)', Trial))
onsets <- make_onset_data(inanimate_trials, onset_time = 15500, 
                          fixation_window_length = 100, target_aoi='Inanimate')
                          
df_switch <- make_switch_data(onsets, predictor_columns = "MCDI_Total", 
             summarize_by = "ParticipantName")
plot(df_switch, "MCDI_Total")

## End(Not run)
                          

eyetrackingR documentation built on Sept. 15, 2023, 5:08 p.m.