Given a set of cartesian coordinates representing the locations of different objects, this function determines the nearest neighboring object of each object.

nn(x, y, id, geo = FALSE)

Arguments

x

A vector of x (or longitude) coordinates.

y

A vector of y (or latitude) coordinates.

id

A vector corresponding to the unique identities of each track.

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 identity of the nearest neighboring object to each object.

See also

nn, nnd

Examples

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