R: Plot a point pairs, identified from a variogram cloud

plot.pointPairs {gstat} | 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

### 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

[Package gstat version 2.0-3 Index]