remove_outliers: Remove outliers

In WillemSleegers/eyepatch:

Description

remove_outliers removes pupil size outliers based on the median absolute deviation (MAD).

Usage

remove_outliers(x, pupil = NULL, constant = 10, log_file = NULL, type = NULL)

Arguments

x	A numeric vector containing the outlier data.
pupil	An optional numeric vector of pupil size measurements. If specified, the function will return a new vector of pupil sizes, but with outliers removed.
constant	An integer that raises or lowers the cutoff threshold.

Details

See Leys, Ley, Klein, Bernard, & Licata (2013) for details regarding why the MAD should be used.

Examples

library(dplyr)
library(ggplot2)

# Example 1: Outlier removal based on pupil dilation speed
blink <- mutate(blink,
    pupil_left_d = dilation_speed(pupil_left, timestamp),
    pupil_right_d = dilation_speed(pupil_right, timestamp),
    pupil_left_clean = remove_outliers(pupil_left_d, pupil_left),
    pupil_right_clean = remove_outliers(pupil_right_d, pupil_right)
  )

ggplot(blink, aes(x = timestamp)) +
  geom_point(aes(y = pupil_left), color = "red") +
  geom_point(aes(y = pupil_left_clean))

WillemSleegers/eyepatch documentation built on Aug. 2, 2021, 8:39 a.m.