matern.kernel {PrevMap} | R Documentation |
Matern kernel
Description
This function computes values of the Matern kernel for given distances and parameters.
Usage
matern.kernel(u, rho, kappa)
Arguments
u |
a vector, matrix or array with values of the distances between pairs of data locations. |
rho |
value of the (re-parametrized) scale parameter; this corresponds to the re-parametrization |
kappa |
value of the shape parameter. |
Details
The Matern kernel is defined as:
where and
are the scale and shape parameters, respectively, and
is the modified Bessel function of the third kind of order
. The family is valid for
and
.
Value
A vector matrix or array, according to the argument u, with the values of the Matern kernel function for the given distances.
Author(s)
Emanuele Giorgi e.giorgi@lancaster.ac.uk
Peter J. Diggle p.diggle@lancaster.ac.uk
[Package PrevMap version 1.5.4 Index]