SIBER (version 2.1.9)

siberConvexhull: Calculate metrics and plotting information for convex hulls

Description

This function calculates the area of the convex hull describing a set of bivariate points, and returns other information useful for plotting the hull.

Usage

siberConvexhull(x, y)

Value

A list of length four comprising:

• TA the area of the convex hull.

• hullX the x-coordinates of the points describing the convex hull.

• hullY the y-coordinates of the points describing the convex hull.

• ind the indices of the original data in x and y that form the boundaries of the convex hull.

Arguments

x

a vector of x-axis data

y

a vector of y-axis data

Examples

x <- stats::rnorm(15)
y <- stats::rnorm(15)
siberConvexhull(x, y)