lines.variogram {geoR} | R Documentation

## Line with a Empirical Variogram

### Description

A sample (empirical) variogram computed using the function `variog` is added to the current plot.

### Usage

    ## S3 method for class 'variogram':
    lines(x, max.dist, type = "o",  scaled = FALSE,
             pts.range.cex, ...)

### Arguments

`x` | an object of the class `"variogram"`, typically an output from the function `variog`.
`max.dist` | maximum distance for the x-axis. By default takes the maximum distance for which the sample variogram was computed.
`type` | type of line for the empirical variogram. The default is `"o"` (dots and lines). See documentation for `lines` for further details.
`scaled` | logical. If `TRUE` the variogram values are divided by the sample variance. This allows comparison between variograms of different variables.
`pts.range.cex` | optional. A two elements vector with maximum and minimum values for the caracter expansion factor `cex`. If provided the point sizes in binned variogram are proportional to the number of pairs of points used to compute each bin.
`...` | other arguments to be passed to the function `lines`.

### Value

A line with the empirical variogram is added to the plot in the current graphics device. No values are returned.

### Author(s)

Paulo Justiniano Ribeiro Jr. paulojus@leg.ufpr.br,
Peter J. Diggle p.diggle@lancaster.ac.uk.

### References

Further information on the package geoR can be found at:
http://www.leg.ufpr.br/geoR.

### See Also

`variog`, `lines.variogram`, `lines.variomodel`, `variog.model.env`, `variog.mc.env`, `plot.grf`, `lines`.

[Package geoR version 1.6-19 Index]