Modified Bessel Function - 2nd kind
Dr Andrew Wilson wrote:
In order to fit a probability distribution proposed by Sichel [Journal of the Royal Statistical Society. Series A (General), Vol. 137, No. 1. (1974), pp. 25-34], I need a modified Bessel function of the 2nd kind. I notice that the base package of "R" only has modified Bessel functions of the 1st and 3rd kind. Does a modified Bessel function of the 2nd kind exist anywhere?
G'day, According to Mathworld, you can make it from modified Bessel functions of the 1st kind: http://mathworld.wolfram.com/ModifiedBesselFunctionoftheSecondKind.html Regards, David.
David Pearson david.pearson at mail.nerc-essc.ac.uk Environmental Systems Science Centre Tel: (0118) 9318741 Harry Pitt Building Fax: (0118) 9316413 University of Reading WWW: http://www.nerc-essc.ac.uk/~dwcp/Home.html RG6 6AL, United Kingdom