RandomFields (version 3.1.12)

RMmodel-class: Class RMmodel

Description

Class for RandomField's representation of explicit covariance models

Usage

RFplotModel(x, y, dim=1,
           n.points=if (dim==1 || is.contour) 200 else 100,
           fct.type=NULL, MARGIN, fixed.MARGIN, maxchar=15, ...,
           plotmethod=if (dim==1) "matplot" else "contour")
## S3 method for class 'RMmodel,missing':
plot(x, y, ...)
## S3 method for class 'RMmodel':
points(x, ..., type="p")
## S3 method for class 'RMmodel':
lines(x, ..., type="l")
## S3 method for class 'RMmodel':
image(x, ..., dim=2)
## S3 method for class 'RMmodel':
persp(x, ..., dim=2, zlab="")

Arguments

x

object of class RFsp or RFempVario or RFfit or

y

ignored in most methods

MARGIN

vector of two; two integer values giving the coordinate dimensions w.r.t. which the field or the covariance model is to be plotted; in all other directions, the first index is taken

fixed.MARGIN

only for class(x)=="RMmodel" and if dim > 2; a vector of length dim-2 with distance values for the coordinates that are not displayed

maxchar

integer. Maximum number of characters to print the model in the legend.

...

arguments to be passed to methods; mainly graphical arguments, or further models in case of class 'RMmodel', see Details.

dim

must equal 1 or 2; only for class(x)=="RMmodel"; the covariance function and the variogram are plotted as a function of $\R^\code{dim}$.

n.points

integer; only for class(x)=="RMmodel"; the number of points at which the model evaluated (in each dimension); defaults to 200

fct.type

character; only for class(x)=="RMmodel"; must equal NULL, "Cov" or "Variogram"; controls whether the covariance (fct.type="Cov") or the variogram (fct.type="Variogram"

plotmethod

string or function. Internal.

type

character. See points

zlab

character. See persp

Value

• if RFoptions()$split_screen=TRUE and RFoptions()$close_screen=TRUE then the plot functions return the screen numbers. Else NULL

Creating Objects

Objects are created by calling a function of class RMmodelgenerator

Details

All the above arguments apply for all the S3 and S4 functions given here as they call RFplotModel immediately.

See Also

RMmodelgenerator RMmodel

Examples

# see RMmodel for introductory examples


# Compare:
model <- RMexp(scale=2) + RMnugget(var=3)
str(model)  ## S4 object as default in version 3 of RandomFields

model <- summary(model)
str(model)  ## list style as in version 2 of RandomFields
            ## see also 'spConform' in 'RFoptions' to make this style
            ## the default


FinalizeExample()