nnd: Nearest Neihgbor Distance

In swarm-lab/swaRm: Processing Collective Movement Data

Nearest Neihgbor Distance

Description

Given the locations of different objects, this function determines the distance of the nearest neighboring object to each object.

Usage

nnd(x, y, geo = FALSE)

Arguments

x	A vector of x (or longitude) coordinates.
y	A vector of y (or latitude) coordinates.
geo	A logical value indicating whether the locations are defined by geographic coordinates (pairs of longitude/latitude values). Default: FALSE.

Value

A vector of the same length as x and y representing the distance to the nearest neighboring object for each object.

Author(s)

Simon Garnier, [e-mail]

See Also

nn

Examples

x <- rnorm(25)
y <- rnorm(25, sd = 3)
id <- 1:25
nnd(x, y)

swarm-lab/swaRm documentation built on Dec. 3, 2023, 9:30 p.m.