Find outliers using interquartile range rule

This function aims at finding outliers in a vector using the interquartile range rule

Usage

is_outlier(x)

Arguments

x

A vector in which outliers need to be found

Value

A boolean vector, TRUE for outliers, FALSE when not

Examples

# generate data from gaussian and exponential distribution
X <- sample(c(rnorm(100), c(rexp(50), -rexp(50))))

# plot data
plot(X, col = ifelse(is_outlier(X), "red", "black"))