spatstat.core (version 2.1-2)

isf.object: Interaction Structure Family Objects

Description

Objects of class "isf" are used internally by the spatstat package to represent the structure of the interpoint interactions in a family of point process models.

Arguments

Value

An object of class "isf", essentially a list of functions for various tasks.

The internal format is undocumented and may be changed without notice.

Details

Advanced Use Only!

An object of class "isf" (Interaction Structure Family) is used internally by the spatstat package to represent the common mathematical and algorithmic structure of the interpoint interactions in a family of point process models.

The existing objects of class "isf" are:

pairwise.family pairwise interaction
triplet.family triplet interaction
pairsat.family saturated pairwise interaction
hierpair.family hierarchical pairwise interaction
inforder.family infinite order interaction
hybrid.family hybrids of several interactions
ord.family Ord interactions

The information contained in these objects enables the spatstat package to select the appropriate algorithm for fitting, predicting and simulating each point process model.

For example, in order to fit a model that involves pairwise interactions, the model-fitting function ppm would use information contained in pairwise.family to select the appropriate algorithms.

An object of class "isf" is essentially a list of functions for various tasks. The internal format is undocumented and may be changed without notice.