model.eval {RGeostats} | R Documentation |

Evaluate a Model for a set of distances, specified by their increments.

model.eval(model, h, ivar=1, jvar=1, dir=NA, flag.norm=FALSE, as.cov=FALSE, nugget.opt = 0, nostd=0, norder=0, member=0, basic.rank = -1)

`model` |
This is the |

`h` |
A set of distances for which the Basic Structure must be evaluated. |

`ivar` |
Index of the first field |

`jvar` |
Index of the second field |

`dir` |
Vector defining the direction coefficients. If defined, it must have the space dimension. The vector will be normalized internally. If not (properly) defined, it is defaulted to the unit vector in the first dimension of the space. |

`as.cov` |
If TRUE, the structure is represented as a covariance; otherwise it is represented as a variogram. |

`flag.norm` |
If TRUE, the variogram is normalized by the variable variance before it is represented |

`nugget.opt` |
Option for the nugget effect: 0 no action; 1 discard the nuegget effect; -1 only consider the nugget effet |

`nostd` |
Option for representing the (cross-)variogram between two different variables. This may be 0 for the standard cross-variogram, -1 for the lower and +1 for the upper part of the maximum correlation envelop. |

`norder` |
When equal to 0, this corresponds to the standard variogram. When strictly positive, it corresponds to the order of the Generalized Variogram. |

`member` |
Type of model usage. In some cases, the expression of the model can be different when used in the Left-hand side (0) or the Right-hand side (1) of the Kriging system, or for the constant term of the Variance calculation (2). This can be chosen here |

`basic.rank` |
If positive, rank of the only basic structure to be evaluated. Otherwise, all the basic structures of the model are evaluated. |

Value(s) of the `model-class`

calculated for a set of distances.

[Package *RGeostats* version 11.1.2 Index]