covStruct.create {DiceKriging} | R Documentation |
Creates a covariance structure.
covStruct.create(covtype, d, coef.cov=NULL, coef.var=NULL, nugget = NULL)
covtype |
a character string specifying the covariance structure. See covTensorProduct-class . |
d |
an integer containing the spatial dimension. |
coef.cov |
an optional vector containing the values for covariance parameters. |
coef.var |
an optional number containing the variance value. |
nugget |
an optional variance value standing for the homogenous nugget effect. Default is NULL. |
A formal S4 class of type "covTensorProduct".
O. Roustant, D. Ginsbourger