Learn R Programming

Directional (version 6.8)

Logarithm of the Kent distribution normalizing constant: Logarithm of the Kent distribution normalizing constant

Description

Logarithm of the Kent distribution normalizing constant.

Usage

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

Value

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

Arguments

k

The conencration parameter, \(\kappa\).

b

The ovalness parameter, \(\beta\).

j

The number of the terms in the sum to use. By default this is 100.

Author

Michail Tsagris.

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

Details

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

References

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

See Also

fb.saddle, kent.mle

Examples

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

Run the code above in your browser using DataLab