logLikGrad {DiceKriging} | R Documentation |
Concentrated log-Likelihood of a km object - Analytical gradient
Description
Returns the exact gradient vector of the concentrated log-likelihood.
Usage
logLikGrad(param, model, envir)
Arguments
param |
a vector containing the optimization variables. |
model |
an object of class |
envir |
an environment specifying where to get intermediate values calculated in |
Value
the gradient of the concentrated log-likelihood.
Author(s)
O. Roustant, D. Ginsbourger, Ecole des Mines de St-Etienne
References
J.-S. Park and J. Baek (2001), Efficient computation of maximum likelihood estimators in a spatial linear model with power exponential covariogram, Computer Geosciences, 27 no. 1, 1-7.
See Also
[Package DiceKriging version 1.6.0 Index]