R: Class "covUser"

covUser-class {DiceKriging} | R Documentation

## Class "covUser"

### Description

An arbitrary covariance kernel provided by the user

### Objects from the Class

Any valid covariance kernel, provided as a 2-dimensional function (x,y) -> k(x,y). At this stage, no test is done to check that k is positive definite.

### Slots

`kernel`:

  Object of class `"function"`. The new covariance kernel.

`nugget.flag`:

  Object of class `"logical"`. Is there a nugget effect?

`nugget`:

  Object of class `"numeric"`. If there is a nugget effect, its value (homogeneous to a variance).

### Extends

Class `"covKernel"`, directly.

### Methods

coef

  `signature(object = "covUser")`: ...

covMat1Mat2

  `signature(object = "covScaling")`: ...

covMatrix

  `signature(object = "covScaling")`: ...

show

  `signature(object = "covScaling")`: ...

### Author(s)

Olivier Roustant, David Ginsbourger, Yves Deville

### See Also

`km` `covTensorProduct` `covIso` `covKernel`

### Examples

    showClass("covUser")

[Package DiceKriging version 1.5.8 Index]