dWatson: Watson distribution density

In adchSTATS/spatstatsphadd: Additions to spatstat

Description

Function for calculating the dentisty at a location x given in cartesian coordinates.

Usage

dWatson(x, kappa, alpha = NULL)

Arguments

x	An object of class pps.
kappa	A numeric value. The consentration parameter. May be negative.
alpha	A numeric vector of length 3. Determines the axis at which there will be rotationally symmetry. Default is the unitvector c(0, 1, 0).

Details

If kappa < 0 the distribution will be a girdle. If kappa > 0 the distribution will be bimodal around the poles alpha and -alpha.

Value

A numeric vector of length corresponding to the number of rows in x. The density at the points X.

Author(s)

Andreas Christoffersen [e-mail]

adchSTATS/spatstatsphadd documentation built on May 28, 2019, 3:54 p.m.