# RC: Constants used in RandomFields (RC constants) In RandomFields: Simulation and Analysis of Random Fields

## Description

Several constants are provided that might make the use of some functions easier, e.g. `RFgetModelNames`.

## Value

```RC_TYPE_NAMES = c( "tail correlation", "positive definite", "variogram", "negative definite", "point-shape function", "shape function", "trend", "distribution or shape", "of manifold type", "process", "method for Gauss process", "normed process (non-negative values with maximum value being 0 or 1)", "method for Brown-Resnick process", "Smith", "Schlather", "Poisson", "PoissonGauss", "distribution family", "interface", "mathematical operator", "other type") ```

```RC_DOMAIN_NAMES = c("single variable", "kernel", "framework dependent", "submodel dependent", "parameter dependent", "<keep copy>", "mismatch") ```

```RC_ISO_NAMES = c("isotropic", "space-isotropic", "vector-isotropic", "symmetric", "cartesian system", "gnomonic projection", "orthographic projection", "spherical isotropic", "spherical symmetric", "spherical system", "earth isotropic", "earth symmetric", "earth system", "cylinder system", "non-dimension-reducing", "framework dependent", "submodel dependent", "parameter dependent", "<internal keep copy>", "<mismatch>") ```

```RC_MONOTONE_NAMES = c( "not set", "mismatch in monotonicity", "submodel dependent monotonicity", "previous model dependent monotonicity", "parameter dependent monotonicity", "not monotone", "monotone", "Gneiting-Schaback class", "normal mixture", "completely monotone", "Bernstein") ```

`RC_ISOTROPIC` gives the numerical code for option `"isotropic"`

`RC_DOUBLEISOTROPIC` gives the numerical code for option `"space-isotropic"`

`RC_CARTESIAN_COORD` gives the numerical code for option `"cartesian system"`

`RC_GNOMONIC_PROJ` gives the numerical code for the gnomonic projection, see also `zenit` in `RFoptions`.

`RC_ORTHOGRAPHIC_PROJ` gives the numerical code for the orthographic projection, see also `zenit` in `RFoptions`.

`RC_EARTH_COORDS` gives the numerical code for option `"earth coordinates"`

`RC_EARTH_ISOTROPIC` gives the numerical code for option `"earth isotropic"`

`RC_SPHERICAL_COORDS` gives the numerical code for option `"earth coordinates"`

`RC_OPTIMISER_NAMES` and `RC_NLOPTR_NAMES` give the names for the options `optimiser` and `algorithm`, respectively, `RFfitoptimiser`.

```RC_LIKELIHOOD_NAMES = c("auto", "full", "composite", "tesselation")``` gives the names of the ML variants: (i) internal choice according to the number of data, (ii) full likelihood, (iii) (pairwise) composite likelihood, and (iv) composite likelihood based on a tessellation of the space.

RF, RM, RP, RR, R., `RFgetModelNames`, RMmodelgenerator-class, `RMtrafo`.
 ``` 1 2 3 4 5 6 7 8 9 10``` ```RFoptions(seed=0) ## *ANY* simulation will have the random seed 0; set ## RFoptions(seed=NA) to make them all random again RC_ISO_NAMES RC_ISO_NAMES[RC_ISOTROPIC:RC_CARTESIAN_COORD + 1] ## Not run: RFgetModelNames(isotropy=RC_ISO_NAMES[RC_ISOTROPIC:RC_CARTESIAN_COORD + 1]) ## End(Not run) ```