vario.plot {RGeoS}R Documentation

Model multivariate graphic representation

Description

Performs the graphic representation of an experimental variogram and a model for one or several directions (usually the ones for which some experimental variograms have been computed), for one or several variables.

Usage

vario.plot(x = NA, 
xlim = NA, ylim = NA, 
npairdw = FALSE, npairpt = 0, flag.norm = FALSE, flag.vars=TRUE,
flag.envelop=TRUE, as.cov=FALSE, norder=0,
inches = 0.1, cex = 1, pch = NA, lty = 1, 
col = NA, lwd = 1, lwd0 = 1, lty0 = 2, pos=3, offset=1,
varline = TRUE, xlab = "", ylab = "", nh = 100, 
varcols=NA, varcols2=NA, maxnvar = 5,idir0=0,add=FALSE,reset=TRUE,...)

Arguments

x

The vario-class structure which gives the calculation directions and extensions.

xlim

An array of two values giving the minimum and maximum values along the horizontal axis

ylim

An array of two values giving the minimum and maximum values along the vertical axis

npairdw

Proportional representation of the number of pairs. Circle areas are proportionnal to the values, i.e radii proportionnal to square root of the values

npairpt

Display the number of pairs. If npairdw=FALSE, a constant size circle is indicates the pair location.

flag.norm

If TRUE, the variogram is normalized by the variable variance before it is represented

flag.vars

1 if the global statistics must be taken into account for calculating graphic extension

flag.envelop

if TRUE and if the two variable indices are different, the coregionalization envelop if added to the graphic.

as.cov

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

norder

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

inches

Size for the representation of the number of pairs

cex

Size for the points in when npairdw=FALSE

pch

Used when npairdw=FALSE to choose the symbols

lty

Type of line for drawing the experimental variogram

col

Color of the lines and symbols

lwd

Width for the lines

lwd0

Width used for the axes

lty0

Type of the lines used for the axes

pos

Position of the labels with respect to the symbol representing the variogram lag (only used when npairpt=TRUE).

  • 1 : label is located below the symbol

  • 2 : label is located on the left of the symbol

  • 3 : label is located above the symbol

  • 4 : label is located on the right of the symbol

offset

When variogram is represented with npairpt=TRUE, this value gives the offset of the label from the symbol representing the variogram lag (in fractions of a character width).

varline

Horizontal line at the sample variance/covariance level This option is automatically discarded in case of generalized variograms.

xlab

Label given on the horizontal axis

ylab

Label given on the vertical axis

nh

Number of discretization points

varcols

List of the indices of the fields to be represented (along X-axis). If not specified, all the variables from 1 to 'maxnvar' are represented.

varcols2

List of the indices of the fields to be represented (along Y-axis). If not specified, the argument varcols is used instead.

maxnvar

Maximum number of figures to be represented.

idir0

Rank of the direction of interest or 0 for all directions

add

When FALSE a new page is initialized before the graphic. Otherwise, the graphic is overlayed on the already existing page.

reset

When TRUE, the screen is erased before the variogram plot is performed.

...

Arguments used by the R functions model.plot and legend.line.

See Also

legend.line


[Package RGeoS version 9.1.1 Index]