# reach.dppm

From spatstat v1.63-0
by Adrian Baddeley

##### Range of Interaction for a Determinantal Point Process Model

Returns the range of interaction for a determinantal point process model.

##### Usage

```
# S3 method for dppm
reach(x, …)
``` # S3 method for detpointprocfamily
reach(x, …)

##### Arguments

- x
Model of class

`"detpointprocfamily"`

or`"dppm"`

.- …
Additional arguments passed to the range function of the given model.

##### Details

The range of interaction for a determinantal point process model may defined as the smallest number \(R\) such that \(g(r)=1\) for all \(r\ge R\), 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. For example in the Matern model this defaults to finding \(R\) such that \(g(R)=0.99\).

##### Value

Numeric

##### Examples

```
# NOT RUN {
reach(dppMatern(lambda=100, alpha=.01, nu=1, d=2))
# }
```

*Documentation reproduced from package spatstat, version 1.63-0, License: GPL (>= 2)*

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