varcovBGCCM

From geoR v1.8-1 by Paulo Ribeiro Jr

Covariance matrix for the bivariate Gaussian common component geostatistical model

Covariance matrix for the bivariate Gaussian common component geostatistical model or its inverse, and optionally the determinant of the matrix.

Keywords: spatial

Usage

varcovBGCCM(dists.obj, cov0.pars, cov1.pars, cov2.pars,
            cov0.model = "matern", cov1.model = "matern",
            cov2.model = "matern", kappa0 = 0.5, kappa1 = 0.5,
            kappa2 = 0.5, scaled = TRUE, inv = FALSE, det = FALSE)

Arguments

dists.obj: a vector with distance values
cov0.pars: covarianve paremeter values for the common component
cov1.pars: covariance parameter for the individual structure of the first variable
cov2.pars: covariance parameter for the individual structure of the second variable
cov0.model: character indicating a valid correlation model
cov1.model: character indicating a valid correlation model
cov2.model: character indicating a valid correlation model
kappa0: scalar
kappa1: scalar
kappa2: scalar
scaled: logical
inv: logical. If TRUE the inverse of the covariance matrix is returned instead.
det: logical. Optional, if TRUE the logarithm of the detarminant of the covariance matrix is returned as an attribute.

Value

A matrix which is the covariance matrix for the bivariate Gaussian common component geostatistical model or its inverse if inv=TRUE. If det=T the logarithm of the determinant of the matrix is also returned as an attribute named logdetS.

Warning

This is a new function and still in draft format and pretty much untested.

Examples

# NOT RUN {
# see http://www.leg.ufpr.br/geoR/tutorials/CCM.R
# }

Documentation reproduced from package geoR, version 1.8-1, License: GPL (>= 2)

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