gstat (version 1.0-21)

vgm.panel.xyplot: panel functions for most of the variogram plots through lattice

Description

Variogram plots contain symbols and lines; more control over them can be gained by writing your own panel functions, or extending the ones described here; see examples.

Usage

vgm.panel.xyplot(x, y, subscripts, type = "p", pch = plot.symbol$pch, 
    col, col.line = plot.line$col, col.symbol = plot.symbol$col, 
    lty = plot.line$lty, cex = plot.symbol$cex, ids, lwd = plot.line$lwd, 
    model = model, direction = direction, labels, shift = shift, mode = mode, ...) 
panel.pointPairs(x, y, type = "p", pch = plot.symbol$pch, col, col.line = 
	plot.line$col, col.symbol = plot.symbol$col, lty = plot.line$lty, 
	cex = plot.symbol$cex, lwd = plot.line$lwd, pairs = pairs, 
	line.pch = line.pch, ...)

Arguments

x

x coordinates of points in this panel

y

y coordinates of points in this panel

subscripts

subscripts of points in this panel

type

plot type: "l" for connected lines

pch

plotting symbol

col

symbol and line color (if set)

col.line

line color

col.symbol

symbol color

lty

line type for variogram model

cex

symbol size

ids

gstat model ids

lwd

line width

model

variogram model

direction

direction vector c(dir.horizontal, dir.ver)

labels

labels to plot next to points

shift

amount to shift the label right of the symbol

mode

to be set by calling function only

line.pch

symbol type to be used for point of selected point pairs, e.g. to highlight point pairs with distance close to zero

pairs

two-column matrix with pair indexes to be highlighted

...

parameters that get passed to lpoints

Value

• ignored; the enclosing function returns a plot of class trellis

References

http://www.gstat.org/

See Also

plot.gstatVariogram, vgm

Examples

library(sp)
data(meuse)
coordinates(meuse) <- c("x", "y")
library(lattice)
mypanel = function(x,y,...) { 
	vgm.panel.xyplot(x,y,...)
	panel.abline(h=var(log(meuse$zinc)), color = 'red')
}
plot(variogram(log(zinc)~1,meuse), panel = mypanel)