kmNoNugget.init {DiceKriging}R Documentation

Fitting Kriging Models

Description

kmNoNugget.init is used to give initial values to fit kriging models when there is no nugget effect nor noisy observations.

Usage

kmNoNugget.init(model)

Arguments

model an object of class km.

Details

The procedure can be summarized in 2 stages:
1) If no initial value is provided by the user for the covariance parameters, simulate them uniformly inside the domain delimited by model@lower and model@upper. The number of simulations is the one given in model@control$pop.size.
2) Compute the likelihood for each parameters set, and select the one that gives the highest value.

Value

An object of class km.

Author(s)

O. Roustant, David Ginsbourger, Ecole des Mines de St-Etienne.

See Also

km, kmNoNugget


[Package DiceKriging version 1.0 Index]