Isotropic.Matern.Exp.RQ.Nonstationary.Covs: 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 (range theta, smoothness nu, variance sigma) into a global nonstationarity covariance with local isotropy. See Paciorek (2003) and Stein (2005).

Usage

Isotropic.Matern.Exp.RQ.Nonstationary.Covs(
  x,
  y,
  theta,
  nu,
  sigma = 1,
  family = "matern",
  verbose = FALSE
)

Arguments

x	x-coordinate of locations on a regular rectangular grid
y	y-coordinate of locations on a regular rectangular grid
theta	correlation range parameter
nu	smoothness parameter
sigma	standard deviation parameter
family	Matern, exp, or RQ (rational quadratic)
verbose	whether to print progress or not

Value

a covariance matrix

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