DiceKriging (version 1.5.6)

covVector.dx: Spatial covariance - Derivatives

Description

Computes the gradient of the covariance vector c(x) computed by covMat1Mat2 with respect to x, for a given covariance structure.

Usage

covVector.dx(object, x, X, c)

Arguments

object

an object specifying the covariance structure.

x

a vector representing the specific location.

X

a matrix whose columns represent locations.

c

a vector containing the covariances between the location x and the set of locations specified in X (see covMat1Mat2).

Value

A vector of real numbers equal to the gradient of c as a function of x.

See Also

covMat1Mat2