plot.pointPairs: Plot a point pairs, identified from a variogram cloud

In gstat: Spatial and Spatio-Temporal Geostatistical Modelling, Prediction and Simulation

Plot a point pairs, identified from a variogram cloud

Description

Plot a point pairs, identified from a variogram cloud

Usage

## S3 method for class 'pointPairs'
plot(x, data, xcol = data$x, ycol = data$y, xlab = "x coordinate", 
ylab = "y coordinate", col.line = 2, line.pch = 0, main = "selected point pairs", ...) 

Arguments

x	object of class "pointPairs", obtained from the function plot.variogramCloud, containing point pair indices
data	data frame to which the indices refer (from which the variogram cloud was calculated)
xcol	numeric vector with x-coordinates of data
ycol	numeric vector with y-coordinates of data
xlab	x-axis label
ylab	y-axis label
col.line	color for lines connecting points
line.pch	if non-zero, symbols are also plotted at the middle of line segments, to mark lines too short to be visible on the plot; the color used is col.line; the value passed to this argument will be used as plotting symbol (pch)
main	title of plot
...	arguments, further passed to xyplot

Value

plots the data locations, with lines connecting the point pairs identified (and refered to by indices in) x

Author(s)

Edzer Pebesma

References

http://www.gstat.org

See Also

plot.variogramCloud

Examples

### The following requires interaction, and is therefore outcommented
#data(meuse)
#coordinates(meuse) = ~x+y
#vgm1 <- variogram(log(zinc)~1, meuse, cloud = TRUE)
#pp <- plot(vgm1, id = TRUE)
### Identify the point pairs
#plot(pp, data = meuse) # meuse has x and y as coordinates

gstat documentation built on Sept. 11, 2024, 7:46 p.m.