nndist.lpp

From spatstat v1.41-1 by Adrian Baddeley

Nearest neighbour distances on a linear network

Given a pattern of points on a linear network, compute the nearest-neighbour distances, measured by the shortest path in the network.

Keywords: spatial

Usage

## S3 method for class 'lpp':
nndist(X, ..., method="C")

Arguments

X: Point pattern on linear network (object of class "lpp").
method: Optional string determining the method of calculation. Either "interpreted" or "C".
...: Ignored.

Details

Given a pattern of points on a linear network, this function computes the nearest neighbour distance for each point (i.e. the distance from each point to the nearest other point), measuring distance by the shortest path in the network. If method="C" the distances are computed using code in the C language. If method="interpreted" then the computation is performed using interpreted Rcode. The Rcode is much slower, but is provided for checking purposes.

Value

A numeric vector, of length equal to the number of points in X.

Examples

example(lpp)
   nndist(X)

Documentation reproduced from package spatstat, version 1.41-1, License: GPL (>= 2)

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