comp_pexp_cov {smile} | R Documentation |
Powered Exponential covariance function for a polygons.
Description
Computing the Powered Exponential covariance function between
polygons.
Usage
comp_pexp_cov(cross_dists, n, n2, sigsq, phi, nu)
Arguments
cross_dists |
a list such that each position contains the cross
distances between points within different polygons.
|
n |
an integer representing number of polygons (note that, this is
different than the size of the list cross_dists
|
n2 |
usually, equal to n , except when the function is being used
to calculate the "cross" covariance between two different partitions of
the same space.
|
sigsq |
the \sigma^2 parameter from the Powered Exponential
covariance function.
|
phi |
the \phi parameter from the Powered Exponential covariance
function, controls the range of the spatial dependence.
|
nu |
the \nu \in (0, 2] parameter representing the "power"
|
Value
The powered exponential covariance matrix associated with a set of
polygons.
See Also
single_exp
, single_matern
,
mat_cov
[Package
smile version 1.0.5
Index]