# covVector.dx

From DiceKriging v1.5.6
by Olivier Roustant

##### Spatial covariance - Derivatives

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

*Documentation reproduced from package DiceKriging, version 1.5.6, License: GPL-2 | GPL-3*

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