Anisotropic.Matern.Nonstationary.Cov: Define a nonstationary covariance matrix based on a...

In ashtonwiens/nonstationary: What the Package Does (One Line, Title Case)

Description

Encode (local) spatially varying parameters (ranges Lx and Ly, smoothness nu, rotation angle, variance sigma) into a global nonstationarity covariance with local geometric anisotropy. See Paciorek (2003) and Stein (2005).

Usage

Anisotropic.Matern.Nonstationary.Cov(
  x,
  y,
  Lx,
  Ly,
  ang,
  nu,
  sigma = 1,
  verbose = FALSE
)

Arguments

x	x-coordinate of locations on a regular rectangular grid
y	y-coordinate of locations on a regular rectangular grid
Lx	range in x direction (geometric anistotropy)
Ly	range in x direction (geometric anistotropy)
ang	angle of rotation (geometric anistotropy)
nu	smoothness parameter
sigma	standard deviation parameter
verbose	whether to print progress or not

Value

a covariance matrix

ashtonwiens/nonstationary documentation built on March 4, 2021, 12:49 a.m.