Kcyl3est: Cylindrical K-function

In adchSTATS/spatstat3dadd: Additions to spatstat

Description

Function for estimating the cylindrical K-function from a three dimensional point pattern. Note: the cylinder only extends in one direction of the reference point.

Usage

Kcyl3est(X, t, u, ..., rmax = NULL, nrval = 128, drop = TRUE)

Arguments

X	A point pattern of class pp3.
t	A numeric vector of heights.
u	A numeric vector determining the direction of the cylinders.
...	Ignored
rmax	Optional. Maximum value of argument r for which Kcyl3(r) will be estimated.
nrval	Optional. Number of values of r for which Kcyl3(r) will be estimated. A large value of nrval is required to avoid discretisation effects.
drop	A logical value indicating whether or not the object to be returned should be a list or an fv oject. Only works when length(t) == 1.

Value

A list where each element is an object of class fv containing the r values, theoretical Poisson values and the estimated function values. Each list element corresponds to the different heights of the cylinders.

Author(s)

Andreas Dyreborg Christoffersen [e-mail]

adchSTATS/spatstat3dadd documentation built on May 20, 2019, 9:26 a.m.