Kmodel

0th

Percentile

K function of a model

Returns the theoretical $K$ function or the pair correlation function of a point process model.

Keywords
models, spatial
Usage
Kmodel(model, ...)
   pcfmodel(model, ...)
   ## S3 method for class 'kppm':
Kmodel(model, \dots)
   ## S3 method for class 'kppm':
pcfmodel(model, \dots)
Arguments
model
A fitted cluster point process model, typically obtained from the model-fitting algorithm kppm. An object of class "kppm".
...
Ignored.
Details

For certain types of point process models, it is possible to write down a mathematical expression for the $K$ function or the pair correlation function of the model. In particular this is possible for a fitted cluster point process model (object of class "kppm" obtained from kppm). The functions Kmodel and pcfmodel are generic. Currently the only method is for the class "kppm". The return value is a function in the Rlanguage, which takes one argument r. Evaluation of this function, on a numeric vector r, yields values of the desired $K$ function or pair correlation function at these distance values.

Value

  • A function in the Rlanguage, which takes one argument r.

See Also

kppm, Kest, pcf

Aliases
  • Kmodel
  • pcfmodel
  • Kmodel.kppm
  • pcfmodel.kppm
Examples
data(redwood)
  fit <- kppm(redwood, ~x, "MatClust")
  K <- Kmodel(fit)
  K(c(0.1, 0.2))
  curve(K(x), from=0, to=0.25)
Documentation reproduced from package spatstat, version 1.23-3, License: GPL (>= 2)

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