Flag outliers based on the IQR rule

This function flags values in a numeric vector as outliers if they fall below Q1 - 1.5 * IQR or above Q3 + 1.5 * IQR.

Usage

flag_outlier(x)

Arguments

x

A numeric vector.

Value

A logical vector of the same length as `x`, where `TRUE` indicates the observation is an outlier.

Examples

x <- c(1, 2, 2, 3, 4, 5, 100)
flag_outlier(x)
#> [1] FALSE FALSE FALSE FALSE FALSE FALSE  TRUE
# Returns TRUE only for the value 100