plot.pointPairs function

Plot a point pairs, identified from a variogram cloud

## 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

Returns

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

References

http://www.gstat.org

Author(s)

Edzer Pebesma

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