Flag and Classify Outliers

Usage

flag_outliers(col)

Arguments

col: A numeric vector or column.

Value

A one-column-input-turned-tibble with value, .outlier (factor: FALSE, TRUE) and .outlier_type (factor: "NONE", "MILD", or "EXTREME"). A value is flagged only when it lies strictly beyond a fence, so a constant column has no outliers.

Examples

flag_outliers(c(1, 2, 3, 4, 5, 100))
#> # A tibble: 6 × 3
#>   value .outlier .outlier_type
#>   <dbl> <fct>    <fct>        
#> 1     1 FALSE    NONE         
#> 2     2 FALSE    NONE         
#> 3     3 FALSE    NONE         
#> 4     4 FALSE    NONE         
#> 5     5 FALSE    NONE         
#> 6   100 TRUE     EXTREME