gstat: vgm.panel – R documentation

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vgm.panel

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

Author(s)

Edzer Pebesma

References

http://www.gstat.org/

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)

gstat

Spatial and Spatio-Temporal Geostatistical Modelling, Prediction and Simulation

v2.0-7

GPL (>= 2.0)

Authors

Edzer Pebesma [aut, cre] (<https://orcid.org/0000-0001-8049-7069>), Benedikt Graeler [aut]

Initial release