dKent: Kent distribution density
In adchSTATS/spatstatsphadd: Additions to spatstat

Description Usage Arguments Details Value Author(s)

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

1	dKent(x, kappa, beta, meandir = NULL, minordir = NULL, majordir = NULL)

`x`	An object of class `pps`
`kappa`	A non-negative numeric value. The consentration parameter
`beta`	A numeric value. The ovalness parameter.
`meandir`	A three dimensional vector. Determines where the density will be consentrated. Default will be the northpole.
`minordir`	A three dimensional vector. Determines the axis that will be the minor axis. Default will be the y-axis.
`majordir`	A three dimensional vector. Determines the axis that will be the major axis. Default will be the x-axis.

If 2 * beta < kappa then the distribution is a generalisation of the normal distribution to the sphere. The distribution is a extension of the von-Mises Fisher distribution (beta = 0). (meandir, minordir, majordir) is supposed to be a orthogonal triple of unit vectors.

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

Andreas Christoffersen andreas@math.aau.dk

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