Directional: kent.logcon – R documentation

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kent.logcon

Logarithm of the Kent distribution normalizing constant

Logarithm of the Kent distribution normalizing constant.

kent.logcon(k, b, j = 100)

`k`	The conencration parameter, κ.
`b`	The ovalness parameter, β.
`j`	The number of the terms in the sum to use. By default this is 100.

It calculates logarithm of the normalising constant of the Kent distribution.

The value of the logarithm of the normalising constant of the Kent distribution.

Michail Tsagris

R implementation and documentation: Michail Tsagris mtsagris@uoc.gr and Giorgos Athineou <gioathineou@gmail.com>

Kent John (1982). The Fisher-Bingham distribution on the sphere. Journal of the Royal Statistical Society, Series B, 44(1): 71-80.

kent.logcon(10, 2)
fb.saddle( c(0, 10, 0), c(0, -2, 2) )

A Collection of R Functions for Directional Data Analysis

v4.9

GPL-2

Authors

Michail Tsagris, Giorgos Athineou, Anamul Sajib, Eli Amson, Micah J. Waldstein

Initial release

2021-03-26