R: Range of Interaction for a Cox or Cluster Point Process Model

reach.kppm {spatstat.core} | R Documentation

## Range of Interaction for a Cox or Cluster Point Process Model

### Description

Returns the range of interaction for a Cox or cluster point process model.

### Usage

      ## S3 method for class 'kppm'
    reach(x, ..., epsilon)

### Arguments

`x` | Fitted point process model of class `"kppm"`.
`epsilon` | Optional numerical value. Differences smaller than `epsilon` are treated as zero.
`...` | Additional arguments passed to the range function of the given model.

### Details

The range of interaction for a fitted point process model of class `"kppm"` may defined as the smallest number R such that g(r)=1 for all r>=R, where g is the pair correlation function.

For many models the range is infinite, but one may instead use a value where the pair correlation function is sufficiently close to 1. The argument `epsilon` specifies the tolerance; there is a sensible default.

### Value

Numeric

### Author(s)

Adrian Baddeley Adrian.Baddeley@curtin.edu.au, Rolf Turner r.turner@auckland.ac.nz and Ege Rubak rubak@math.aau.dk.

### Examples

      fit <- kppm(redwood ~ 1)
      reach(fit)

[Package spatstat.core version 1.65-5 Index]