outlier_uni: Univariate outliers

In phytomosaic/ecole: ecole: School of Ecology Package

Description

Find extreme values in a vector

Usage

outlier_uni(x, mult = 1.5, ...)

Arguments

x	vector of numeric values to query
mult	IQR threshold for 'outliers'; default is 1.5 times the IQR
...	further arguments passed to other methods

Details

Given a vector, finds indices of values exceeding an IQR threshold.

Value

List of with 4 elements: threshold values (lwrlim, uprlim) and indices of values beyond those thresholds (lower, upper)

References

davidrroberts.wordpress.com/2015/08/26/r-code-outlier-function/

See Also

outlier_multi for multivariate analog.

Other outlier functions: outlier_multi()

Examples

set.seed(19)
x <- data.frame(x=seq(1:10),y=c(rnorm(6,1),rnorm(2,-9),rnorm(2,9)))
(outs <- outlier_uni(x$yy))
plot(x)
points(x[outs$lower,], col=2, pch=19)
points(x[outs$upper,], col=4, pch=19)

phytomosaic/ecole documentation built on Jan. 2, 2022, 11:24 p.m.