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