Identify outliers according to the IQR criterion

The IQR criterion holds that any value lower than one-and-a-half times the interquartile range below the first quartile, or higher than one-and-a-half times the interquartile range above the third quartile, is an outlier. This function returns a logical vector that identifies those outliers.

iqrOutlier(x)

Arguments

x	The vector to scan for outliers.

Value

A logical vector where TRUE identifies outliers.

See also

IQR

Examples

### One outlier in the miles per gallon
iqrOutlier(mtcars$mpg);
#>  [1] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
#> [13] FALSE FALSE FALSE FALSE FALSE FALSE FALSE  TRUE FALSE FALSE FALSE FALSE
#> [25] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE