eyelinkReader (version 1.0.3)

extract_variables: Extract variables

Description

Extracts variables from the events table of the eyelinkRecording object. Normally, you don't need to call this function yourself, as it is called during the read_edf with default settings (e.g., import_variables = TRUE).

Usage

extract_variables(object)
# S3 method for data.frame
extract_variables(object)
# S3 method for eyelinkRecording
extract_variables(object)

Value

Object of the same time as input, i.e., either a eyelinkRecording object with an additional variables slot or a data.frame with variables' information. See eyelinkRecording for details.

Arguments

object

Either an eyelinkRecording object or data.frame with events, i.e., events slot of the eyelinkRecording object.

See Also

read_edf, eyelinkRecording

Examples

data(gaze)

# by passing the recording
gaze <- extract_variables(gaze)

# by passing events table
variables <- extract_variables(gaze$events)