[R] Bessel function

Prof Brian Ripley ripley at stats.ox.ac.uk
Wed Sep 15 10:41:24 CEST 2004

On Wed, 15 Sep 2004 beat.huggler at rmf.ch wrote:

> Currently, I'm implementing the generalized hyperbolic distribution into
> Splus. Unfortunately the Bessel function is not implemented in Splus. In
> R the Bessel function does exist but it is an internal function and I'm
> not able to look at the code.
> Is there any possibility to see the code of the Bessel function in R or

Of course.  It *is* in the sources.  What stops you looking at the 
sources?  (Where they are is in the FAQ, for example.)

BTW, there are four Bessel functions in R, and others do exist.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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